2187 - The 50 Year Nuclear Battery From China And How To Make Your Own Version

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  • เผยแพร่เมื่อ 18 พ.ย. 2024
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  • @ThootenTootinTabootin
    @ThootenTootinTabootin 10 หลายเดือนก่อน +1284

    This dude has the energy of that uncle you were always extremely excited to go see as a child.

    • @solarsynapse
      @solarsynapse 10 หลายเดือนก่อน +17

      I am that Uncle.

    • @jakubkolcar6789
      @jakubkolcar6789 10 หลายเดือนก่อน +3

      True

    • @brownhippy
      @brownhippy 10 หลายเดือนก่อน +1

      Lol

    • @anwarabrahams2413
      @anwarabrahams2413 10 หลายเดือนก่อน +1

      yes

    • @yinlee363
      @yinlee363 10 หลายเดือนก่อน +20

      Nowadays, these uncles usually get locked up😂

  • @Horus9339
    @Horus9339 10 หลายเดือนก่อน +818

    This is the type of Man that was my Physics teacher in the 80's, enthusiastic and loved trying to blow the science room up or blind us all with lasers. We need more people like this educating our Children.

    • @chrischris1722
      @chrischris1722 10 หลายเดือนก่อน

      Impossible with Gove's reforms, because believe me, these teachers are still in the classroom

    • @ZachRadman
      @ZachRadman 10 หลายเดือนก่อน +13

      Yup, had a teacher like that. We need some visuals too you know. Not just some soundwaves from your teach's mouth.

    • @l-l
      @l-l 10 หลายเดือนก่อน +6

      I would’ve done anything for a teacher like him. I love the contagious feeling of wanting to learn. The joy I get from listening to them geeking out about what they’re passionate about is a feeling I can’t find anywhere else

    • @Horus9339
      @Horus9339 10 หลายเดือนก่อน +11

      @@l-l I was lucky, our Physics teacher tried to blind us, irradiate us, nearly get arrested by MPs for a radar jamming device one of our classmates designed and our Chemistry teacher tried to blow us up, burn us with acid, fill the room with poison gas and fill the floor with mercury (the room was closed down and did not open for the four years I remained there). I was put on detention for nearly setting fire to my classmate, he told me 'Only he was allowed to kill us, and that I was not insured to do so'.
      Professional educators that really inspired us with exciting, sometimes harmful tasks for the benefit of leaning or knowing there are real dangers in class/life, real life lessons.

    • @64offsuiter
      @64offsuiter 10 หลายเดือนก่อน +3

      Hi. maths teacher here. Its the curriculum that holds most of us back, particularly science teachers. Yes some are boring, some are fun but I also need someone that cover enough content such that my child can eventually pass exams and go on to A levels and beyond. A lot of newer teachers only see that side of things and not the whole ‘I should be trying to inspire kids’. There’s a fair chance that this fella would struggle in a class of 32 where 20 of them have no interest and mess about accordingly. 50-60% of what we do nowadays is behaviour management, seating plans, admin, reports, managing detentions etc etc. I always find it sad how quickly people speak negatively of my profession without ever done the job themselves or considering a variety of elements.

  • @beavischrist5
    @beavischrist5 10 หลายเดือนก่อน +2973

    Next episode is how to diy a small thorium reactor to power your whole house.😊

    • @GasketManzrevenge
      @GasketManzrevenge 10 หลายเดือนก่อน +122

      Please!?

    • @klausschwabshubris
      @klausschwabshubris 10 หลายเดือนก่อน +66

      I’m in ….😊

    • @1TylerM
      @1TylerM 10 หลายเดือนก่อน +67

      I’d buy that for a dollar!!

    • @308dad8
      @308dad8 10 หลายเดือนก่อน +143

      Been done. Look up radioactive boyscout. Kid got himself and his parents in trouble for his pursuit of scientific experimentation. Built a reactor in the backyard shed and when he realized it was running away he dismantled it, shielded all the materials and was loading it into his car to dispose of when someone thought it would be funny to call in a bomb threat on him and police overreacted to an already dismantled reactor. He later joined the Navy and was forbidden from going near the reactor which sucks because he was kinda born for that sorta thing.

    • @GnuReligion
      @GnuReligion 10 หลายเดือนก่อน +9

      I want one!

  • @RustyCantRead
    @RustyCantRead 10 หลายเดือนก่อน +88

    It's so exciting learning new ways go get onto watch-lists. Keep it coming!

  • @thesentientneuron6550
    @thesentientneuron6550 10 หลายเดือนก่อน +332

    So if my math is correct, assuming 1mA at 110 mV, it should produce 9.504 Joules of energy over 24 hours. For a red LED operating at a F.V. of 2V with a current draw of 20 mA, the energy if stored with no losses or leakage would be enough to keep it lit for 237.6 seconds or ~4 minutes. This could prove to be extremely useful for supplying enough power to actuate some relays (or beefy transistors) and wake up hibernating electronics in applications where they’ll remain turned off for extended periods of time. 4 of these nuclear batteries could maintain a 1000mAh NiMH battery at 80% state of charge for 156 years. Or maybe you could create an atomic clock utilising the time-averaged regularity of the decays.

    • @philip5940
      @philip5940 10 หลายเดือนก่อน +51

      So I'll just mention it's pointed out in a comment or two that the output is 100 microwatts instead of milliwatts. Rob states microwatts later .

    • @thesentientneuron6550
      @thesentientneuron6550 10 หลายเดือนก่อน +34

      @@philip5940 So I deleted my previous comment because I misunderstood you, apologies. I was merely making a calculation for Rob’s little transistor based device. I think the real breakthrough is probably that Diamond doesn’t break down like the semiconductors we use in electronics do when exposed to radiation. Spacecraft have had reduced operating lifetimes in space due to radiation spikes (such as from CMEs, for instance) damaging the solar panels thereby decreasing their output. I’m not sure how the power output differs between Rob’s little experiment and the Chinese company’s product but the lifetime is what really matters (I think). Anyway, thanks for sharing!

    • @philip5940
      @philip5940 10 หลายเดือนก่อน +1

      It doesn't look like that comment got relayed through

    • @e100vids2
      @e100vids2 10 หลายเดือนก่อน +12

      I checked your numbers, seems right to me, and it's a good use of variables many may overlook or think they will never need beyond Ohm's Law. I checked using this equation to start with:
      voltage = joules of energy / coulomb of charge

    • @thesentientneuron6550
      @thesentientneuron6550 10 หลายเดือนก่อน +5

      @@e100vids2 Thank you

  • @ranieri7x
    @ranieri7x 10 หลายเดือนก่อน +73

    This part of opening smoke sensors for its nuclear source remembers me a kid years ago that caused a nuclear accident while attempting to build his own home-made miniature nuclear reactor for his college science fair.

    • @samholdsworth420
      @samholdsworth420 9 หลายเดือนก่อน +22

      Wrong it was an eagle scout project

    • @Enderbro3300
      @Enderbro3300 8 หลายเดือนก่อน +3

      To be fair, this feels a LOT less dangerous than a reactor XD

    • @nocturnal101ravenous6
      @nocturnal101ravenous6 5 หลายเดือนก่อน

      You mean the one that build a defunct reactor in his mom's pottery shed, and somehow was able to buy a neutron gun.

    • @Hunne2303
      @Hunne2303 5 หลายเดือนก่อน +1

      he collected all sorts of radioactive stuff, mainly "glow in the dark" stuff from mid 20th century...eventually it "piled" up so much, that he could register the emitting radiation in his room...the stuff was out in the garden iirc...and it didn´t stop there...he "irradiated", me thinks, two or three blocks of the neighborhood

  • @e100vids2
    @e100vids2 10 หลายเดือนก่อน +299

    A nuclear battery, etc, of low power can be assisted by a capacitor for when a relatively large amount of power is needed, say a transistor radio or a LED lamp to function when needed.

    • @martinwashington3152
      @martinwashington3152 10 หลายเดือนก่อน +33

      joule thief

    • @EvenTheDogAgrees
      @EvenTheDogAgrees 10 หลายเดือนก่อน +41

      No, it can't. What you can do is use it to charge a conventional battery during "off-time", for devices that require power only intermittently. And yes, I said "battery" and not "capacitor", because capacitors can only store relatively small amounts of energy.
      However, a far more efficient way to achieve this is by using a bog standard charger if you live in a first world country and have access to mains voltage Or a dynamo built into the device, like with some torches or radios, if access to mains voltage is problematic (no infrastructure, or during a power outage). Or use solar panels if it's a device in a remote location where you don't have mains and winding the dynamo is impractical. E.g. a LoRa node monitoring some environmental parameters in a remote location in a forest, or what have you.
      I get it, these batteries are cool. But they're not a solution to every problem that has "power" in the title. There's a place for these things for sure, but powering devices that require more power than they can deliver is not it.

    • @e100vids2
      @e100vids2 10 หลายเดือนก่อน +8

      @@EvenTheDogAgrees I agree, but I'm in also agree with Robert basic concepts , I was hesitant to find practical or efficient use.

    • @chemistryofquestionablequa6252
      @chemistryofquestionablequa6252 10 หลายเดือนก่อน +18

      @@EvenTheDogAgreessupercapacitors can hold a decent amount of energy now, there are disposable vapes that use them instead of batteries.

    • @conorstewart2214
      @conorstewart2214 10 หลายเดือนก่อน

      @@chemistryofquestionablequa6252 a problem with most types of capacitor is self discharge or leakage current, they drain pretty quickly when sitting unused. It is highly likely that the self discharge rate of most, if not all capacitors is above the power output of one of these nuclear batteries.

  •  10 หลายเดือนก่อน +97

    Its like seeing every experiment from my scientific books brought to life. Always amazed how fast you knock out these videos while still being quality. nuke battery was something i made after reading about the radioactive boy scout which eventually lead to making B.E.A.M robots, fm transmitters, rc airplanes, cnc devices...list goes on.

    • @erikmaguina1
      @erikmaguina1 10 หลายเดือนก่อน +2

      I mean sounds interesting is it a book?

    • @hhhllkk88
      @hhhllkk88 9 หลายเดือนก่อน

      @@erikmaguina1

    • @1OTDM
      @1OTDM 9 หลายเดือนก่อน +1

      BEAM robots...there's a blast from the past!

  • @captainoates7236
    @captainoates7236 10 หลายเดือนก่อน +28

    I watch a lot of science videos along with a science background but Robert MS seems to be the science teacher I never had.
    To be fair I have a lot of trouble keeping up with his latest project. This one was a mash of all I know about pn junctions and semiconducters together with nuclear physics.
    I am in awe.

  • @martinlicht1969
    @martinlicht1969 10 หลายเดือนก่อน +145

    Nice demonstration. In 1960s, our military developed a portable nuclear plant that operates years providing a local power plant anywhere. There's a military documentary on yt showing this. And just in recent news this concept is being revisited.
    Thanks for sharing and providing good inspiration.

    • @billb7876
      @billb7876 10 หลายเดือนก่อน +37

      Ah but that would make it difficult to take money off us for energy, no wonder this sort of thing is kept low key

    • @ChrisP978
      @ChrisP978 10 หลายเดือนก่อน +16

      Many small scale nuclear things were tried including nuclear powered cars (Ford Nucleon). At the time it was envisioned that small scale reactors could also be a home power source. These days with battery energy storage this is truly feasible, but the nuclear dream died long ago.

    • @OnlyKaerius
      @OnlyKaerius 10 หลายเดือนก่อน +5

      See also: nuclear powered submarines, and ships(mainly aircraft carriers).

    • @zhou_sei
      @zhou_sei 10 หลายเดือนก่อน +6

      naquadah generator?

    • @TheLonesurvivalist
      @TheLonesurvivalist 10 หลายเดือนก่อน +7

      It got scrapped because the fuel rods would build steam if removed improperly and one of the techs wasnt paying attention when removing it and got pinned to the roof by the rod

  • @shiggityx2
    @shiggityx2 10 หลายเดือนก่อน +17

    Thank you, Sir Anthony Hopkins, for this fascinating information.

  • @RWBHere
    @RWBHere 10 หลายเดือนก่อน +57

    Thanks Robert. There is also some low energy Gamma radiation from the decay of Americium-241, so it's worth remembering. The smoke detector works by generating a voltage between two plates at each side of an air cavity. Smoke particles enter the cavity and disrupt (absorb) the Alpha particles, causing a drop in voltage, and triggering the alarm. So the detector is also essentially a low power battery.

    • @happydappyman
      @happydappyman 10 หลายเดือนก่อน +6

      @user-up1id5rv2m indeed. You'd imagine you could charge a capacitor with the americium that could power the buzzer for 10 minutes or so. Assuming it had sufficient hours to charge before needing to go off.

    • @Molon_Labe1776
      @Molon_Labe1776 10 หลายเดือนก่อน +4

      *Radioactive Boyscout Intensifies*
      (Rip)

    • @barahng
      @barahng 9 หลายเดือนก่อน

      ​@user-up1id5rv2mModern fire detectors are photo-electric (smoke particles deflect/absorb the photons) and don't use a radioactive source.

  • @MechanicGoneRogue
    @MechanicGoneRogue 10 หลายเดือนก่อน +53

    This is such a cool video. Love the extra detail on the history of the battery as well as the practical demonstration. Look forward to the next one!!!

  • @daniellapain1576
    @daniellapain1576 5 หลายเดือนก่อน +2

    Honestly making a simple LED that never runs out of power is a good start for these things. Especially if you’re using it as a grow light for plants.

  • @HansPolak
    @HansPolak 10 หลายเดือนก่อน +57

    One comment. Half-life refers to the halving of the fissile material. This means that after 400+ years you'll get half the current but the battery will continue for hundreds of years more.

    • @advaits6427
      @advaits6427 6 หลายเดือนก่อน

      Well, technically the battery will continue forever, it's just that the current will keep dropping as per the decay.

    • @nocturnal101ravenous6
      @nocturnal101ravenous6 5 หลายเดือนก่อน

      @@advaits6427 No atoms do eventually die off and break down atoms are not eternal and Radioactive isotopes have a chance of shooting off and electron, I think Bismuth 209 or something like that is the longest of any isotope. Some faster than others, the elephant's foot - Chernobyl is a great example of radioactivity that is breaking down at a fast rate, original photographer died a week after being exposed to it, now you can spend an hour in a suit in front of it.
      Nothing is eternal and nothing lasts forever.

    • @comment8767
      @comment8767 5 หลายเดือนก่อน

      @@advaits6427 Before the battery gets half-discharged it must get half of half discharged, and before it gets half of half discharged, if must get half of half of half discharged, etc. It lasts forever.

  • @noperception5073
    @noperception5073 5 หลายเดือนก่อน +2

    I have no intention of making this but my lord was it interesting to watch. The way you deliver information is fantastic!

  • @carlacowling1789
    @carlacowling1789 10 หลายเดือนก่อน +151

    Fascinating! I wonder why this couldn't be scaled up to power larger items?
    I also have to wonder if the research and development of cheap, safe energy production and storage isn't restricted by the desire for "planned obsolescence". Companies aren't interested in spending the time and money to develop a power source you only need to by once a century.
    Looks like it's up to you Robert! 😜

    • @AnonymousAnarchist2
      @AnonymousAnarchist2 10 หลายเดือนก่อน +21

      well this is going very fast for what this is. 2018 till 2024 is only 6 years and we defenitly need to know excatly how pure and perfect we can make these batteries as their first use case is powering bios batteries keeping system times things like that

    • @ToeCutter454
      @ToeCutter454 10 หลายเดือนก่อน +46

      they can be scaled up but you wouldn't be able to power anything like a vehicle with them, they would be best suited for stuff like smart phones, smart watches and small electronic gadgets that don't draw massive amounts of power. i've commented on another tech channel trash talking the nano diamond battery when it first came out as they were poking fun at how little energy it produced... my response was that you'd stack them to get the voltage you need and that's your battery for the device for what would quite literally be a few lifetimes, you could take the battery out of a dead device and put it into a new one and reduce tech waste a significant amount.

    • @partciudgam8478
      @partciudgam8478 10 หลายเดือนก่อน +19

      A powerful enough version would likely need a low half life isotope, in order to emmit a ton of particles in a short enough time to make a meaningful current without weighing a ton itself, anyway, refueling yoir car each 5 years beats once a week by a factor of 54.
      Beta and Alpha particles are safe, an aluminium foil can block them with ease, and if you can't afford a piece of your hat, you can always stay atarround 2 meters of the source to be safe.

    • @ToeCutter454
      @ToeCutter454 10 หลายเดือนก่อน

      @fluffy_unicorn859 apple products are garbage anyways so whatever gets people to stop using them i guess lol.

    • @rogerphelps9939
      @rogerphelps9939 10 หลายเดือนก่อน

      Even smart phones are well beyond the capability of this. Although the energy density is quite high the power density is very low.@@ToeCutter454

  • @cybernite99
    @cybernite99 10 หลายเดือนก่อน +5

    Idk how to explain the dopamine rush i felt when it all clicked how it worked. Incredibly clever engineering, and i applaud you for taking a stab at one in your garage. Thank you, im subscribed now

  • @antonnym214
    @antonnym214 10 หลายเดือนก่อน +22

    Sir , you are funny, brilliant, and supremely entertaining. Always interesting! Thank you.

  • @petjezwijgrecht5031
    @petjezwijgrecht5031 10 หลายเดือนก่อน +4

    I just wanted to say I love your energy and your way of explaining. I got the idea of how this works now with little pre knowledge which makes you an excellent teacher

  • @technicalfool
    @technicalfool 10 หลายเดือนก่อน +30

    I'm sure betavoltaics and other nuclear batteries hit the news every year now. Usually it's some article claiming you'll be able to power an EV with a stack of them, then followed by some "Busted" video showing how this isn't even remotely feasible. I think my favourite was Nurdrage taking the low-efficiency approach of sandwiching a bunch of tritium-filled phosphor-coated vials between two solar panels and getting a few microwatts.
    Would be kind of fun to see how many americium pellets and transistor cores it would take to do something simple like drive a wristwatch or a calculator though, if it can be done without significant risk. Even alpha and beta emitters can be dangerous if you swallow or breath them!

    • @nickl5658
      @nickl5658 10 หลายเดือนก่อน +8

      If you are willing to carry a phone that is the size of an early 1990s handphone,,, you definately can make a nuclear powered handphone. Phone, exercise weight and self defense instrument all in one.

    • @Roninkinx
      @Roninkinx 9 หลายเดือนก่อน +1

      @@nickl5658Honestly that doesn’t bother me at all the size, as long as it never dies I could also just use the battery as a battery charger as well which would be amazing.

    • @cornelius2993
      @cornelius2993 9 หลายเดือนก่อน

      EEVblog 1595 - 50 Year Chinese Nuclear Diamond Battery!

  • @waterfuel
    @waterfuel 10 หลายเดือนก่อน +3

    Nuclear batteries have been contracted to the US military from an Oregon manufacturing firm long ago. They were used in those sky beam search light units.

  • @alden1132
    @alden1132 10 หลายเดือนก่อน +19

    If this gets cheap enough for consumer products, one of the first applications I thought of was for smoke detectors, some of which use a radioactivity source (an isotope of Americium, I believe) to detect smoke. Perhaps they could use the same radiation source to power AND operate a smoke detector?

    • @alden1132
      @alden1132 10 หลายเดือนก่อน +11

      I wrote my comment too soon. I had no idea you were going to use a smoke detector for your project!

    • @rogerphelps9939
      @rogerphelps9939 10 หลายเดือนก่อน +1

      The power density would be insufficient to operate any sort of audible alarm.

    • @DerekRoss1958
      @DerekRoss1958 10 หลายเดือนก่อน +14

      Add a supercapacitor, charged by the source. By the time the alarm is needed, it will have stored enough charge to provide the power required for the alarm.

    • @tcmtech7515
      @tcmtech7515 10 หลายเดือนก่อน +1

      Online estimates already say they will cost around $5000 each.

    • @nutbastard
      @nutbastard 10 หลายเดือนก่อน

      @@tcmtech7515 Sure, at the moment, but if you consider that a computer as powerful as your phone is would cost $100,000,000 thirty years ago (and draw tens of kilowatts to operate) it’s a fairly safe assumption that not too long from now this nascent technology will become affordable.

  • @Harinair72
    @Harinair72 10 หลายเดือนก่อน +7

    That cackle at 10:00 is why I adore you...... You are my favorite mad, funny, lovable, not-at-all-evil scientist!

    • @shebamina
      @shebamina 10 หลายเดือนก่อน

      Also came here to comment about the "I knew this -should- work, but here it is working!" cackle. Love it

  • @chrisnewman658
    @chrisnewman658 10 หลายเดือนก่อน +23

    You make all this so much fun, Robert!

  • @cryptickcryptick2241
    @cryptickcryptick2241 9 หลายเดือนก่อน

    Very Cool. For all those that want a long term battery, I would like to point out there are 50 year batteries on you tube. If size is not an issue, basically, just take large chunks of any two metals, aluminum and copper for example and stick them in a bucket with water and salt, and you have a battery. If you connect several cells, you will get higher voltage. In order to make it last long, like 50 years, one uses large chunks of copper -copper piping- and large chunks of aluminum tube or pipe. I built my own battery that powered an LED 24 hours a day with some aluminum foil and copper wire. After three months, the foil was starting to dissolve, and I had my fun.

  • @Ezzell_
    @Ezzell_ 10 หลายเดือนก่อน +8

    Awesome video!...made my day. Can we increase the voltage out put in the two ways? 1) make a hole above the N and not cut off the top when aiming the Nuclear material at it, which would allow the alpha particles to be concentrated and the ones who are not going straight down would bounce around in the can and eventually hit the the N. 2) Would sorting the two Ns together increase the voltage.
    Also this may make a great mil volt reference standard.

    • @terrysobkowich2084
      @terrysobkowich2084 10 หลายเดือนก่อน +1

      Great idea, it also keeps it sealed

  • @acmtix
    @acmtix 9 หลายเดือนก่อน +1

    Great video Robert. The possibilities with this tech are endless and to think its been around for years.

  • @g0fvt
    @g0fvt 10 หลายเดือนก่อน +6

    And to think I had hundreds of 2N3055s once, another opportunity missed. How would a darlington transistor fare with the two base junctions effectively in series? Would a plastic bodied transistor be a better choice?

  • @arnabchatterjee7261
    @arnabchatterjee7261 9 หลายเดือนก่อน +1

    Great initiative, such enthusiasm will for sure propel the humanity towards energy independence. 👏

  • @lumberluc
    @lumberluc 10 หลายเดือนก่อน +11

    Philip Brody already found this out. By having a lead-lantheum matrix, encasing a radioactive element (Which we'll use radium as an example), you'll be able to effectively cause an ionization event giving a DC output.
    Depending on the purity of the lead-lantheum, it can go up to ~1500 volts/cm with a 30 nano-amp flow.
    See Patent US 4,041,465

  • @MD-Yuh
    @MD-Yuh 10 หลายเดือนก่อน +2

    Robert, I just want to say: Love you! Thank You for excellent content. You are the best!

  • @ehrichweiss
    @ehrichweiss 10 หลายเดือนก่อน +29

    The current Betavolt does 100 MICRO watts, not milliwatts as you stated in the beginning of the video.(yes, you stated it correctly later but just in case someone doesn't watch that far maybe they'll read this and know the truth)

    • @jasonlogan5765
      @jasonlogan5765 10 หลายเดือนก่อน +3

      So you think they'll skip the rest of the video and go right to your comment that's pretty narcissus of you

    • @kamayasoulmaker8376
      @kamayasoulmaker8376 10 หลายเดือนก่อน +9

      @@jasonlogan5765 hehe don't be that way. He's just trying to help. We are all learning and sharing here.

    • @brianlittleforest631
      @brianlittleforest631 10 หลายเดือนก่อน +3

      @jasonlogan5765 "narcissistic"*

    • @ivanjakanov
      @ivanjakanov 10 หลายเดือนก่อน

      sounds about right, but they're still talking about prototypes (edit: video says they are in pilot production, so i guess they are already making them) and they say they are stackable in layers and very thin so they could probably make a stack of 1000 and wire them in parallel or series, if they want to increase the current or voltage

    • @adrianmartinez1222
      @adrianmartinez1222 6 หลายเดือนก่อน

      I was wondering about that actually😂

  • @Viaexplore
    @Viaexplore 10 หลายเดือนก่อน +11

    Wow, this will actualy change the things and move the technology to next level. I am really exited to see the 1W version. Even slowly filling supercaps would solve the high power peak issues.

    • @n.lightnin8298
      @n.lightnin8298 9 หลายเดือนก่อน

      My thoughts exactly a bunch of these with a capacitor array would be amazing

    • @YbborUberAlles
      @YbborUberAlles 9 หลายเดือนก่อน +1

      China numba 1 huh?

    • @malkeus6487
      @malkeus6487 8 หลายเดือนก่อน

      It would be great to have something portable sized to charge battery packs on the go.

  • @jdouglas4564
    @jdouglas4564 10 หลายเดือนก่อน +14

    Very nice. I wonder if it would work better with a Solar cell

    • @ThinkingandTinkering
      @ThinkingandTinkering  10 หลายเดือนก่อน +5

      me too!

    • @rogerphelps9939
      @rogerphelps9939 10 หลายเดือนก่อน

      Actually it would. The power density is very low.@@ThinkingandTinkering

  • @ManyHeavens42
    @ManyHeavens42 10 วันที่ผ่านมา +1

    Best thing next to bread 🍞 you finally figured out a way to get the most ions.

  • @Milkybar3320011
    @Milkybar3320011 10 หลายเดือนก่อน +18

    Good to see you revisited your nuclear battery, one of my favs

  • @damonharrison7611
    @damonharrison7611 10 หลายเดือนก่อน +2

    This was wonderful :) Educational, entertaining and your joy mirrored mine :) I love seeing people enjoy doing what they do and I thank you for the informative content :)

  • @azlandpilotcar4450
    @azlandpilotcar4450 10 หลายเดือนก่อน +5

    I saw the product announcement yesterday and hoped you'd review your battery. Thanks.
    Wouldn't ɑ/ɓ radiant voltaic battery continue to produce electricity after its half-life, but at a reduced rate? Only half of the mass would have decayed into its new stable element -- the rest would still be active?
    WOuld love to see this or a karpen cell as a charger for the fractal capacitor array. One cell per capacitor.

    • @molybdaen11
      @molybdaen11 10 หลายเดือนก่อน +2

      Yust look at the voyager probes.
      They passive energy source decayed more and more over the decades and now only a few of the instruments have enough power to stay online.
      Theoretically it's never out of energy but practically it all depends on the half life.

  • @blankstares4355
    @blankstares4355 6 หลายเดือนก่อน +1

    I recall a story awhile back of a young teenage hobbyist in the USA who made his own mini nuclear power generator by using a bunch of that material from those smoke detectors.

  • @PompiisGarage
    @PompiisGarage 10 หลายเดือนก่อน +11

    If Americium 241 has a half life of 432 years, why is my smoke detector only good for 10 years?

    • @germanlopez9448
      @germanlopez9448 10 หลายเดือนก่อน +3

      good question, the answer is that we are going to dispose of the radioactive material within the devices long before the half life of the radioactive material, just as many people do now the radioactive material will end up in the landfills. the good news is that many more people will get cancer from the exposure, the medical industry will do well.

    • @rdizzy1
      @rdizzy1 10 หลายเดือนก่อน +15

      Because it is not powering the actual alarm, only triggering the alarm. You need a battery to power the alarm. And the failure point of these alarms is not the radiation source, it is the other parts (random electronics randomly end up going, or dust builds up inside of the radiation chamber, etc). And they are good for longer than 10 years on average, that is just when they recommend getting a new one.

    • @johnnylego807
      @johnnylego807 10 หลายเดือนก่อน +1

      Text it, if it works it works, if it does not, it’s probably the failure of components.

    • @RavenFlight413
      @RavenFlight413 10 หลายเดือนก่อน

      @germanlopez9448 your comment isn't even coherent yet seems to imply conspiracy to poison everyone. I disagree, also the americium is perfectly safe in its containment capsule as americium produces primarily alpha particles which are easily stopped with the outer (dead) layer of skin or a piece of paper. So much work has gone into making it safe that no, smoke detector alpha emitters are not going to be a risk unless you intentionally break open the capsule and then decide to swallow the americium piece inside.
      Don't say "the answer is" unless you are willing to back up a claim with documentation and evidence.

    • @sunshadow7XK
      @sunshadow7XK 10 หลายเดือนก่อน

      Capacitors, especially the older electrolytic ones get leaky and make the system unreliable.

  • @takofili3520
    @takofili3520 9 หลายเดือนก่อน

    One of the best randomly recommended youtube videos on my feed

  • @spaced-out-records
    @spaced-out-records 10 หลายเดือนก่อน +5

    Wow ... this .. is why i love this channel

  • @calculatedrush
    @calculatedrush 10 หลายเดือนก่อน +2

    I get worried about making the most interesting content because of danger that surrounds it. Not that it can't be done safely but that it would get my channel in trouble. You give me the confidence to move forward on certain videos I want to unleash.

  • @Jon6429
    @Jon6429 10 หลายเดือนก่อน +4

    Would this work better on a solar cell rather than single transistor?

  • @Mapa356
    @Mapa356 5 หลายเดือนก่อน

    Below par editing or not, I love geeking out and listening to this guy, I wish he was my science teacher 30 odd years ago, I’d have probably taken a completely different path 😂❤

  • @selfcorrected-Bobby
    @selfcorrected-Bobby 10 หลายเดือนก่อน +11

    Sabine Hossenfelder also covered this recently. She also has a great sense of humour.

    • @paulperegud6000
      @paulperegud6000 10 หลายเดือนก่อน +2

      This one is way more informative though

    • @philip5940
      @philip5940 10 หลายเดือนก่อน +1

      I never correctly remember her surname . But I'm not going editing my other recent commitment though.

    • @selfcorrected-Bobby
      @selfcorrected-Bobby 10 หลายเดือนก่อน

      oh, definitely @@paulperegud6000

  • @matterhaz2980
    @matterhaz2980 9 หลายเดือนก่อน

    This is amazing. Thank you for showing this. I've taken apart a couple metal detectors to give my new Geiger counter. (Wearing proper ppe of course) and not sure what else I could do with the buttons other than leave them in a jar in my garage for the next 400 some years but this solves my issue I made for myself!

  • @001Neal100
    @001Neal100 10 หลายเดือนก่อน +4

    This kind of voltage/ current would be useful for offsetting parasitic drains on circuits where there is always something that slowly depletes a battery even when you are not using it

  • @canalsentir
    @canalsentir 4 หลายเดือนก่อน +1

    Was very interesting with a good solid explanation, thanks!! 😊

  • @inbed247
    @inbed247 9 หลายเดือนก่อน +3

    You sir, have made me mentally wealthy! The way you explain things is amazing! Now subbed and locked in!

  • @vanhetgoor
    @vanhetgoor 10 หลายเดือนก่อน +2

    One tenth of a milli-Ampère at a tenth of a Volt, then I should at least harvest 30 smoke detectors to vaguely light up a few LED's or an old LCD wrist watch. Must be fun to walk around with, you don't have to wait in the line at the supermarket.

  • @pownonome
    @pownonome 10 หลายเดือนก่อน +6

    If you use an electric photo cell, won't it produce higher voltage?

    • @goiterlanternbase
      @goiterlanternbase 10 หลายเดือนก่อน

      What about the receptor of an IR sensor?

  • @Yaman-D-Chhaya
    @Yaman-D-Chhaya 9 หลายเดือนก่อน +1

    Rob sir superb video, loved the content, Love and warm regards from India 🇮🇳🇮🇳🙏🙏

  • @mariusraducan1348
    @mariusraducan1348 10 หลายเดือนก่อน +4

    I love it! This is the most expensive power source in the world at almost $100 000 per W. Compared to solar, which is currently at $0.1 per W, the price would need to drop a million times. The first solar panels cost about $115.3 per watt, the price dropped 1000 times in fifty years.

  • @axle.australian.patriot
    @axle.australian.patriot 10 หลายเดือนก่อน +2

    I did something like this 15 years back with an americium chip. Was proof of concept but I would likely have to wait a long time to power up a capacitor to get an led to light. Had more fun with the chip and 4000v spark gap tester. Basically a fine guitar string wound in a ladder across a metal plate with about 5-6mm gap. Variable capacitor to wind it up until the arcs start then wind back just until the sparks stop then wave the alpha emitter over near the guitar wires. tick, tick, tick :P

  • @VeniceInventors
    @VeniceInventors 10 หลายเดือนก่อน +3

    Very interesting. It didn't occur to me until now that alpha radiations, being near the UV wavelengths, could cause photovoltaic cells or semiconductors to generate a voltage. I guess the same is true of x-rays too since they're the next step up from UV. Not that I know of any material which puts out x-rays while decaying.
    With the Americium, it looks like quite a few pieces would be needed in series to get 3.3V. I suppose each pellet could produce twice the output if it's extracted from its casing, to expose the underside and to sandwich ir between two transistors.
    My smoke detector with Americium is definitely putting out Beta radiations too as I get an increase of over 500 CPMs when pointing my Geiger counter towards the plastic case and Alpha radiation wouldn't make it through the plastic and thin metal cage surrounding the ionization chamber. I don't think it puts out Gamma though because the readings drop when I insert a 1mm steel plate between the smoke detector and the Geiger counter. It's still bad though if it can ionize floating dust which might end up being inhaled.

    • @terrysobkowich2084
      @terrysobkowich2084 10 หลายเดือนก่อน

      That could be a concern , but I remember another vid where a person went into a mine and the air was very radioactive from all the uranium decay. I could be misrepresenting but the main issue was the charged particle radiation attracting and sticking to the clothing which came out pretty radioactive, however it decayed quickly and putting the clothes into a bag away from the camp overnight dropped the radiation to background levels, perhaps simply an airtight unit would suffice.

    • @VeniceInventors
      @VeniceInventors 10 หลายเดือนก่อน +1

      @@terrysobkowich2084 If you meant airtight batteries then yes, I'd expect them to be both airtight and shielded sufficiently to block beta radiations, as someone will inevitably end up carrying one in their pants pocket.
      If you meant airtight smoke detector, that wouldn't work of course as the smoke needs to get in 🙂

  • @JasperMcCrea
    @JasperMcCrea 9 หลายเดือนก่อน +1

    Found the easy way to open the transistor. Clamp one side in the middle of a vise.Take a sharp utility knife- slide between the cap and the base metal and give the knife a very gentle rap with a hammer and that whole cap pops off in seconds!

  • @slick05123
    @slick05123 10 หลายเดือนก่อน +6

    I was watching your backlog of members videos on hemp batteries, and it got me thinking about all of the ashes I've accumulated from my wood burning fire. I know you can add water to ashes to make lye.. since I have such an excess of ashes to be used, is there any way I can use them in making a battery? Maybe as the anode? I love your videos and would love to hear your ideas on this idea, even if it's just a simple "no, that wouldn't be worth it."

    • @LittleXtra
      @LittleXtra 10 หลายเดือนก่อน +1

      Sodium Hydroxide is a wonderful electrolyte, just don't mix with aluminum, zinc, and a few other metals or bad things happen.

    • @rodmills4071
      @rodmills4071 10 หลายเดือนก่อน +1

      ​​@@LittleXtracaustic soda you get hydrogen, so many fun times had as a kid .. hydrogen balloons , and a wick.. well you can take it from here....🤔😂😎🇦🇺👌

    • @slick05123
      @slick05123 10 หลายเดือนก่อน

      @@LittleXtra I figured it could be put to use somehow. What anode and cathode would you recommend to use for a battery using a Sodium Hydroxide electrolyte?

  • @curian1286
    @curian1286 8 หลายเดือนก่อน

    Glad to see you're still going strong, Robert!

  • @technosaurus3805
    @technosaurus3805 10 หลายเดือนก่อน +6

    Also a novel way of creating a radiation detector if you omit the source... just read the output with a multimeter.

    • @thesentientneuron6550
      @thesentientneuron6550 10 หลายเดือนก่อน +1

      While it would work in principle, it would only work placed right next to a hot source. The threshold of background radiation needed to set this off would be immediately dangerous to a human being(I presume), but if that’s all that your goal is, I don’t see why you couldn’t give it a shot!

  • @RHYSPARDOE-m8z
    @RHYSPARDOE-m8z 10 หลายเดือนก่อน +2

    This guy is awesome, talks science in understandable English 👍

  • @adamstewarton
    @adamstewarton 10 หลายเดือนก่อน +5

    I honestly think we could power our world off of small atomic reactors. There is no need for oil. But imagine something that lasts ages and doesn't break - small profits.

    • @svinkuk2652
      @svinkuk2652 10 หลายเดือนก่อน

      Well idk, its not usually the batteries that break first in most battery powered products, is it?
      Energy companies are gonna be mad though lol.

    • @adamstewarton
      @adamstewarton 10 หลายเดือนก่อน +2

      @@svinkuk2652 they may not break first but surely they don't last ages.

    • @svinkuk2652
      @svinkuk2652 10 หลายเดือนก่อน

      @@adamstewarton no sure thats true, im thinking of things like phones and laptops though, most people tend to replace them long before the battery goes wonky.
      it'd be a gamechanger for cars though i suppose, but they could just do what the tech industry and many car manufacturers already do and engineer them to fail after so many years, as well as make them impossible to maintain without ten million specialized tools and put in software to make it harder to get off brand spare parts etc etc.
      There are always shady ways to maintain profits lol.
      I get your point though, its definitely an incentive for companies to want these things away from the market.

    • @rogerphelps9939
      @rogerphelps9939 10 หลายเดือนก่อน

      No they are not. The power output of these things isn't even enough to run a very dim LED torch.@@svinkuk2652

  • @ajchat8701
    @ajchat8701 10 หลายเดือนก่อน +2

    Offspring with 2 heads, you say!! It seems like a risk worth taking😄😅Great video and very interesting!

  • @thatguychris5654
    @thatguychris5654 10 หลายเดือนก่อน +19

    So 1000 smoke detectors will get you a 12v power source that lasts over 400 years....hmm tempting

    • @victororo462
      @victororo462 6 หลายเดือนก่อน

      You then would have to worry about what to do with that 3rd nut...lol

    • @daniellapain1576
      @daniellapain1576 5 หลายเดือนก่อน

      The stores will be wondering why you’re buying up so many smoke detectors 😂

    • @flubalubaful
      @flubalubaful 2 หลายเดือนก่อน

      Contact the suppliers directly and only buy the materials you need. Cutting costs to a few cents a cell. Buy a machine to build the cells and these could end up costing a few cents a cell. Cheap enough to build a 48v battery for the same price as we pay now for lithium batteries, the only difference is the battery does not need recharging for 50 to 100 years.

  • @reececrook7021
    @reececrook7021 8 หลายเดือนก่อน

    i took out the americium from a detecter a few years ago, i put it on a shelf some where and now i am lammenting the fact that i've lost it, this seems like such an awesome project

  • @g-r-a-e-m-e-
    @g-r-a-e-m-e- 10 หลายเดือนก่อน +10

    The idea of a phone that doesn't need charging is very appealing.

    • @ThinkingandTinkering
      @ThinkingandTinkering  10 หลายเดือนก่อน +5

      it is indeed

    • @1o1carolina53
      @1o1carolina53 10 หลายเดือนก่อน +1

      Have you lost your mind the first thing you want to do when you grow up is stop being bothered by the stupid phone brainwashed and programmed by a plastic glowing box

    • @Struthio_Camelus
      @Struthio_Camelus 10 หลายเดือนก่อน +9

      All we need now is a 50-year phone...

    • @spherelance72
      @spherelance72 10 หลายเดือนก่อน +3

      Apple disagrees!

  • @SomethingOldSomethingNew-ux9ms
    @SomethingOldSomethingNew-ux9ms 4 หลายเดือนก่อน

    Props for making learning interesting. You are enthusiastic and good at explaining! Keep it up!

  • @HalkerVeil
    @HalkerVeil 6 หลายเดือนก่อน +3

    Can it power a T-60 suit?

  • @skunkjobb
    @skunkjobb 10 หลายเดือนก่อน +1

    About that lasting 432 years (the halflife of Am 241). That depends on what you mean by lasting. After 432 years, the power has dropped to half the initial power but it still produces power.

  • @allenhargis4317
    @allenhargis4317 10 หลายเดือนก่อน +11

    Could a solar panel be used instead of a transistor?

    • @ThinkingandTinkering
      @ThinkingandTinkering  10 หลายเดือนก่อน +17

      interesting question - i may well try it

    • @prte100
      @prte100 10 หลายเดือนก่อน +4

      @@ThinkingandTinkering please, we would love to see !

    • @strawman9410
      @strawman9410 10 หลายเดือนก่อน +3

      And put more in series upto 5v 😊

  • @TushhsuT
    @TushhsuT 10 หลายเดือนก่อน

    I have really enjoyed. Highest grade of information, given simple, but deep enough to understand.

  • @tcmtech7515
    @tcmtech7515 10 หลายเดือนก่อน +8

    *In theory,* a 1-watt continuous output battery that can run for 50 years would have a~438,000 amp-hours capacity. At 3 volts that's a ~ 1.3 MWH battery! 😋
    However, in realistic terms, in order to use a set of such batteries to do anything large like power an average home or electric vehicle. Each application would need many thousands of them. Likely about 10,000 of them to power an average house like mine and about 70,000 to 100,000 to make an EV that could be driven like a normal vehicle. 🤡
    Oh ya, and current pricing estimates put them at about $ $4500 - 5000 US dollars each if you buy in bulk! 😂

    • @HamguyBacon
      @HamguyBacon 10 หลายเดือนก่อน

      You don't use these batteries to run things directly, you use them to charge super capacitors which will charge traditional larger capacity batteries continuously for 50-100 years.

    • @lordofthechimie
      @lordofthechimie 10 หลายเดือนก่อน

      Calculating watts per dollar might be more accurate. I am very bad at electricity math, so giving that the price of electricity is 16 cents per kwh; In theory, can this method produce cheaper electricity?

    • @tcmtech7515
      @tcmtech7515 10 หลายเดือนก่อน

      @@lordofthechimie 1300 x .16 = $208

  • @GerinoMorn
    @GerinoMorn 10 หลายเดือนก่อน +1

    I have only tangential physics background (I majored but not graduated, let's say), but I "wanted" an endless battery all my life. My best idea was positron source to just annihilate electrons on the target and create voltage. I should have known it's been done smarter and better already :D

  • @veritopian1823
    @veritopian1823 10 หลายเดือนก่อน +6

    If this really works we could get consumers to pay to slowly move all the nuclear waste from it's expensive storage facilities into domestic landfill, via gadgets...
    That'd be great.
    :)

    • @germanlopez9448
      @germanlopez9448 10 หลายเดือนก่อน

      i am sure this is the intended outcome the academic community was aiming to achieve. what genius is lurking withing the halls of academic institutions.

  • @SymPlayTon
    @SymPlayTon 9 หลายเดือนก่อน

    I can see some use cases for this.
    Trickle charger for cars. When it becomes more dense and able to get around 2amps at 13-14v (around 26-28w) your car battery in a modern car that is currently abused by all of the new electronics would last 2x as long.

  • @ThePaulv12
    @ThePaulv12 10 หลายเดือนก่อน +4

    I'm not getting too excited Robert. I saw a vid on this yesterday and the one thing we all want is a battery to power our house for say ten thousand bucks (or at least lower our energy bill), but this isn't it and isn't going to be apparently.
    Perhaps I was expecting a panacea, but I wonder what it'll be used for or if it will take 10 or 20 years to find the perfect application.

    • @ThinkingandTinkering
      @ThinkingandTinkering  10 หลายเดือนก่อน +4

      you do right mate - It is fascinating but like all these things there are issues for sure

    • @janthran
      @janthran 10 หลายเดือนก่อน +4

      for sure but you can step it up and use it to charge other things. you could even run a small motor with a differential to do .. something. you can also hook a couple up in series for more power

    • @BozesanVlad
      @BozesanVlad 10 หลายเดือนก่อน +1

      Just think of IoT devices that'll last a lifetime (sensors, LoRa, etc)
      Plus we live on an electric generator (Earth), we just need to "tap" into it (not for silly waste of energy as many westerners/ easterners do right now, but still)

  • @Paul-ey1ct
    @Paul-ey1ct 2 หลายเดือนก่อน

    Literally he's like an 80s teacher, right up for a kaaaboooom in the classroom 😂, we need more people like this 👍.

  • @beyondearth6418
    @beyondearth6418 5 หลายเดือนก่อน +3

    Radioactive materials should not be made easily publicly available. Our society as it stands in 2024 is not conducive to peaceful responsible and non-destructive use of radioactive products.

  • @dans-designs
    @dans-designs 9 หลายเดือนก่อน +1

    Great video Rob! I wonder if you have heard of the LTC3108 chip? It takes voltages as low as 20mv and can push them upto 5v with usable current! check it out and if you still have the bits from this nuclear battery, maybe you can get some usable voltage out of it?!

  • @pietpompiepompiepiet940
    @pietpompiepompiepiet940 10 หลายเดือนก่อน +4

    If i were to mount 25 2n3055 blocks in series will it increase voltage with the same radiation?

    • @prte100
      @prte100 10 หลายเดือนก่อน +2

      not at all, because you need 25x the same radiation source and thats I guess more problematic, because you have 25x higher risk that something bad might happen. Maybe Im wrong.

    • @eco_logic
      @eco_logic 10 หลายเดือนก่อน

      @@prte100 as in 25 smoke alarms from the same manufactory?

    • @prte100
      @prte100 10 หลายเดือนก่อน

      @@eco_logic i don't know what was originally meant, but I suppose that

  • @kurenai5000
    @kurenai5000 10 หลายเดือนก่อน

    Cool. I imagine this is the "Radiant" energy spoken about. Radiation.
    If we scaled it up using specialised panels and radioactive material, I wonder how well it'd go to power a home.

  • @donniewatson9120
    @donniewatson9120 10 หลายเดือนก่อน +5

    Combine it with a joule thief to drive an led.

  • @davidwentzel1560
    @davidwentzel1560 10 หลายเดือนก่อน +1

    I never saw one of your videos before but I’ve already subscribed

  • @thegrandgalacticinquisitor9060
    @thegrandgalacticinquisitor9060 9 หลายเดือนก่อน +6

    xbox controller drained one of these batteries in two weeks

  • @AiOinc1
    @AiOinc1 10 หลายเดือนก่อน

    I think seeing these as a replacement for watch batteries and in DIP packages for computer applications to use for realtime clocks is a fantastic idea. It might be interesting to combine it with an atomic clock, if the principle is the same.

    • @Roninkinx
      @Roninkinx 9 หลายเดือนก่อน

      Shove enough together and we could run a switch from it, I”d love infinite battery on mine.

  • @bctpcp9546
    @bctpcp9546 10 หลายเดือนก่อน

    Got to love RMS's videos! Love that coffee mug "in the lab"!

  • @blindbutnotbroken1755
    @blindbutnotbroken1755 7 หลายเดือนก่อน

    Thank you for all the work you do to give us this information it is because of you and your inspirational attitude that many people explore scientific principles beyond what they learned in school and because of that many people will advanced what we understand of science. Thank you to you the hack miss dial from the Internet and the king of random. You guys are amazing and you continue to further the world’s knowledge without restriction and without censorship, you guys are doing an amazing job and we appreciate all the work you do to inform us and give us new skills and abilities. Life is nothing but a learning experience and you make the best of it. Thank you very much for everything that you do you inspire everyone you come in contact with you guys are amazing.

  • @shable1436
    @shable1436 9 หลายเดือนก่อน +1

    I love your lesson, you make me so interested, and want to learn more

  • @galvanizeddreamer2051
    @galvanizeddreamer2051 6 หลายเดือนก่อน

    "A sheet of radioactive diamonds" is the most metal sentence I have heard today.

  • @Kvltklassik
    @Kvltklassik 10 หลายเดือนก่อน

    My grandpa worked his whole life on surface semiconductors and would have been amazed at the new tech including diamond surfaces.

  • @ryorai5804
    @ryorai5804 7 หลายเดือนก่อน

    In a weird coincidence I do remember being interested in beta voltaic batteries back during/before the time where they used diamond so its very cool and interesting to hear that happened around that time.

  • @garethrossbuddell9436
    @garethrossbuddell9436 10 หลายเดือนก่อน

    I'm making an open trestle windmill out of what would have been firewood, when it is in operation it will simply turn a couple of alternators charging car batteries powering an oil radiator for the house. The sales will be 10 ft from tip to tip.

  • @PeetHobby
    @PeetHobby 10 หลายเดือนก่อน

    Great video, like always. 👍
    If I remember correctly, Boeing has been making similar batteries for over a decade(s).

  • @JharylDonnNan
    @JharylDonnNan 9 หลายเดือนก่อน

    I just explained to a friend why i was watching this... I said "The doctor" always has such interessting topics....

  • @johanssonC17
    @johanssonC17 5 หลายเดือนก่อน

    great video! Also I would love to see someone make a video comparing this type of alpha photovoltaic cell to the much more common tritium/ phosphor alphavoltaic cell in terms of voltage and current.

  • @MarcoPono
    @MarcoPono 10 หลายเดือนก่อน

    Thank you for your videos, you are the cool uncle we all need.

  • @Mr.Spanky
    @Mr.Spanky 9 หลายเดือนก่อน

    When you said 10 times and slid I was like I had to rewind and watch that again that was smooth

  • @mihai-alexandrudzubaila585
    @mihai-alexandrudzubaila585 5 หลายเดือนก่อน

    Well done sir!your explanation is very good and easy to understand!

  • @Big_Beef1
    @Big_Beef1 9 หลายเดือนก่อน +1

    Ferb, I think I know what we're going to do today