Thanks, Bruce. You've inspired me to make one of these for my own job. I've been spreading smiles around the physics department today in the form of the Franklin bell. I thought you'd enjoy knowing that people you'll probably never meet are inspired by you, and using that inspiration to spread joyful learning. Keep the good stuff coming!
Bruce, what a great job of explaining how to increase the strength of the Fun Fly Stick. I've got one, but never thought of replacing the cardboard tube with metal. Well done, once again!
4:30 is my favorite demonstration of Gauss' Law for electricity. The cups flay off 1 at a time because the charge accumulates on the outside of the conductor, which is only the topmost cup.
Is that Gauss's law though? That is a very interesting observation regardless, that since they're all connected it's one big conductor and the charges will only be on the outside surfaces to it, I think the video might even show that a little confusingly at 6:59 (this is the demo you're talking about right?)
Neat! I have 5 fly-sticks for the school workshops; For the coherer receiver (metal filings, tube, two bolts) we usually charge a film-can leyden jar, which takes a bit of fiddling to produce large sparks. This could save some time while testing the coherer :-) I've tried piezo stove lighters, but they don't seem to work quite as well.
I should have had a science teacher like you in school. I might have actually learned something with the interesting demonstrations rather than being bored by a teacher who made sure things were boring.
I love all your videos. the inside of a soda can has a light coating I wonder if you use something without that you would get anymore juice out of it. I don't know though it seemed to be working quite well
not that I know of, the balls jumping is very similar to the franklin bell demo. The balls get positively charged on the bottom plate, are repelled by the bottom and attracted upwards where they gain electrons, fall and the process repeats itself
+Bruce Yeany (Yeany Science) ok thanks. I thought that maybe it could be used heating particles in a similar way that a microwave does. Anyway id like to congrate you for your vids. Im a spanish ingeneering student and i have learnt a lot with your experiments! thank you for your attention
Even if it's coated with a thin layer of some non conductive material, the voltage induced by VDG generator is so high I expect it to exceed the breakdown voltage of the insulator.
Bruce, i love your videos, so much better than mine. I have some questions: how to obtain the graphite coated styrofoam balls? Is the induction moter also made of the same kind of balls? Thanks!
I had purchased balls that were already coated, the induction motor was the same type only larger. Catalogs advertise them as pith balls for static electricity demonstrations . I heard some people have used small foam balls and rub them with pencil graphite, I haven't tried this myself or you can try wrapping the balls with aluminum foil.
7:05 the illustration is a bit confusing to me. The positive charge is shown above the outline of the cupcake wrappers there, but shouldn't this part be negatively charged and the "inside" of the wrappers positively?
I need better illustrations. since the aluminum is a good conductor, I believe the electrons are removed from both sides of the surface and both sides would be positively charged.
It occurs to me... wouldn't the individual atoms in the can be repelling each other, too? Obviously, the inter-molecular bonds are far too strong for this to create any noticeable effects, but the repulsive force pushing against these bonds would not be zero. This also brings up a theory. I'm curious about what kind of charge it would take for these repulsive forces to be strong enough to cancel out and break those bonds. Of course, I'm sure most materials would already have those bonds broken simply from the heat caused by inducing that much electricity, but this is a theoretical thing I'm talking about. Or does the repulsive force actually play a role in this heat destruction? It really gets the mind working...
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Your demos continue to be amazing! You are truly one of the best science teachers students could ever wish for!!
Thanks, Bruce. You've inspired me to make one of these for my own job. I've been spreading smiles around the physics department today in the form of the Franklin bell.
I thought you'd enjoy knowing that people you'll probably never meet are inspired by you, and using that inspiration to spread joyful learning.
Keep the good stuff coming!
Bruce, what a great job of explaining how to increase the strength of the Fun Fly Stick. I've got one, but never thought of replacing the cardboard tube with metal. Well done, once again!
4:30 is my favorite demonstration of Gauss' Law for electricity. The cups flay off 1 at a time because the charge accumulates on the outside of the conductor, which is only the topmost cup.
Is that Gauss's law though? That is a very interesting observation regardless, that since they're all connected it's one big conductor and the charges will only be on the outside surfaces to it, I think the video might even show that a little confusingly at 6:59 (this is the demo you're talking about right?)
Bruce you are a genius! I have always wanted to use a Van Der Graaf Generator, but they are very expensive. This is a great alternative! Thank YOU!
I am so glad I found your channel! Thanks for all these videos.
How funny
I was just thinking "why hasn't Bruce put out another kick ass video in a while?"
I wish I had a science teacher like B dog.
Awesome demonstrations Bruce, you made my day!!! Big thumb up from me. ^^
I enjoyed the video and I'll surely come back to see you again... ; )
Keep them coming Bruce! I'm your number one fan!
Neat! I have 5 fly-sticks for the school workshops; For the coherer receiver (metal filings, tube, two bolts) we usually charge a film-can leyden jar, which takes a bit of fiddling to produce large sparks. This could save some time while testing the coherer :-) I've tried piezo stove lighters, but they don't seem to work quite as well.
Nice work Bruce.
I remember seeing commercials for this wand when I was young. Good times...
Great video! If you put the Fun Fly Stick in a vacuum, would it make some visible plasma?
I should have had a science teacher like you in school. I might have actually learned something with the interesting demonstrations rather than being bored by a teacher who made sure things were boring.
Great job teaching!
That device looks like a Can Der Graaf generator to me, but either way nice video!
LOL, good one, I like that
Absolutely love it. Can you explain why the VDG generator is always positively charged?
You are videos are grate. Thank you for teaching.
0:05 lol. somewhere in that room is a headless barbie doll.
MassDynamic I can tell you from experience there are some weird things in that room.
Very interesting. It explains me some questions I had when I was a child.
nice show and lesson !
I love all your videos. the inside of a soda can has a light coating I wonder if you use something without that you would get anymore juice out of it. I don't know though it seemed to be working quite well
That was a very informative video!!
Woo hoo! More amazing fun! The flyers that come with the toy basically are flying on ionic wind then?
Can you just add foil to the outside of the cardboard tube as long as you fold some over to make contact?
I have a question about the experiment which makes the balls jump and fall again. Has it got any application to heat fluids, for example?
not that I know of, the balls jumping is very similar to the franklin bell demo. The balls get positively charged on the bottom plate, are repelled by the bottom and attracted upwards where they gain electrons, fall and the process repeats itself
+Bruce Yeany (Yeany Science) ok thanks. I thought that maybe it could be used heating particles in a similar way that a microwave does.
Anyway id like to congrate you for your vids. Im a spanish ingeneering student and i have learnt a lot with your experiments! thank you for your attention
imagine if you had this magic wand in say 11,000 c.e.
you would be a wizard!
Do you have instructions how to build that induction motor demo, that looked interesting and as I have to teach induction and motors to year 13
Hello matloo, I don't have a set of instructions for it but if you do a search for static motor you there are quite a few variations out there for one
ok I will look into it ta very much
I think... if the sparks are 1 inch long then the voltage is 75kV not 30kV as stated in the video. Air Breakdown voltage is 30kV/cm.
Are there any practical uses for a Van der Graaf Generator ?
well for fun u can shock people
Very cool, thank you for show it to us.
Can you please explain the hailstorm demonstration and why you need a can at the top?
here is some of the basics, www.atmo.arizona.edu/students/courselinks/spring15/atmo589/lecture_notes/jan21_2015.html
素晴らしい動画、ありがとうございます。
Don't aluminum cans have plastic liners? If you removed that would it work better?
Not plastic, lacquer.
Nathan Callahan a steel bean can would be best I bet!, throw it in the oven for a hour cool it wash it attach it
Even if it's coated with a thin layer of some non conductive material, the voltage induced by VDG generator is so high I expect it to exceed the breakdown voltage of the insulator.
I love this video. I wonder what the outcome would be if you used 3.7V lithium batteries instead...
good idea, I will try that
Bruce Yeany good on you mate you're a legend!
ma shaa Allah.. can u explane us th ionic winds phenomenon
How awkward was it when you decapitated that Barbie doll?
kiefac has dank maymays you don't have a drawer full off decapitated doll heads?
My daughter was not very happy with me, however, it was not one of hers and a cheap Barbie knock off.
kiefac That Barbie died for the advancement of science.
Big respect.
1943vermork
Neverforget
Thanks for my next nigntmares.
should have shown that electrostatic motor can actually work both ways -- that's quite an unusual property
Bruce, i love your videos, so much better than mine. I have some questions: how to obtain the graphite coated styrofoam balls? Is the induction moter also made of the same kind of balls? Thanks!
I had purchased balls that were already coated, the induction motor was the same type only larger. Catalogs advertise them as pith balls for static electricity demonstrations . I heard some people have used small foam balls and rub them with pencil graphite, I haven't tried this myself or you can try wrapping the balls with aluminum foil.
Awesome
7:05 the illustration is a bit confusing to me.
The positive charge is shown above the outline of the cupcake wrappers there, but shouldn't this part be negatively charged and the "inside" of the wrappers positively?
I need better illustrations. since the aluminum is a good conductor, I believe the electrons are removed from both sides of the surface and both sides would be positively charged.
glad to see that product placement isnt an issue on youtube :)
5:54 hurt my brain, potential -ding,kinetic-dong over and over ahh
4:45 was the best
0:13 Hlumbusineituaioenensaiensauana take a look at the fun fly stick :P
Is it possible to make a car from the "roll the can" experiment?
Mateo Aguilera yeah it would be but it would not be very efficient
It wouldn't be possible, see newton's third law, but it would be possible using the motor demo.
It occurs to me... wouldn't the individual atoms in the can be repelling each other, too? Obviously, the inter-molecular bonds are far too strong for this to create any noticeable effects, but the repulsive force pushing against these bonds would not be zero.
This also brings up a theory. I'm curious about what kind of charge it would take for these repulsive forces to be strong enough to cancel out and break those bonds. Of course, I'm sure most materials would already have those bonds broken simply from the heat caused by inducing that much electricity, but this is a theoretical thing I'm talking about. Or does the repulsive force actually play a role in this heat destruction? It really gets the mind working...
Interesting. The site doesn't have much information about it, but it's interesting nonetheless.
Как же я ето видео искал👍
Excellent ! Thank you for all your vidéos.
Asombroso.
is it a Van der Graaf or Van der Graaff or a Van de Graaff generator?! ;P
barbie became medusa. coincidentally she was decapitated too 😄
What the music 0:01?
It is from the free music files that came with the apple computer that I use for editing, I don't have a name for it
Just use a can opener.
That first image was much more disturbing than it should have been...
Well...there's nothing scientific about the hail balls...that one was obvious.......The red bull gave them wings!
🌷🧡🌷
you look into barbies face and see...
shes SHOOK NASTAY
30,000 volts? gee, i wonder why they didnt add a collection dome? lolol
@electroBOOM
turbocharge it
Wonder how much coke paid him for the product placement