I have a low level to no knowledge of astrophysics and all things scientific - however I continue to listen to hours of Neil de Grasse-Tyson’s presentations and love it - each episode makes this 'science dummy' feel like I know something - my working knowledge is growing. Thank you ever so much Neil and your team. I love Chuck - he earths the programme with his highly intelligent wit and humour.
I'll speak up for ya Neil. While I don't know the "helicopter experts" of whom you refer, I can recount my experiences as a combat heavy lift helicopter aircrewperson, and confirm your original statement. As a general rule, helicopters "fall like rocks" (in contrast to airplanes) when they lose all engine power. As for auto-rotation, it works better on some helos, than others...but, it ONLY works IF you have sufficient altitude in which to create the necessary amount of lift before hitting the ground. Since the majority of rotary accidents occur immediately after take-off, or prior to landing, this technique is 100% useless (my VA disability rating verifies this) because there is not enough time to induce the air pillow. Yet in my aircraft, for instance, auto-rotation is still subject to elevation(atmospheric density), wind, humidity, gross weight; and if any of those conditions exceed a threshold when the power loss occurs, altitude be damned, it's going to leave a mark! When the main rotor(s) lose power they DO NOT produce enough lift to keep the helo in the air, it's the reason for having powerplants (engines) in the first place! They dont propel the helo through the air, they turn a shaft which, through transmission gearboxes, turn the main(s) & tail. Carry on...
@@shaunmitchell2069 On the whole, yes, more blades give more lift, but it doesn't scale linearly, across the various types. Although, the amount of blades are more indicative of its expected operating weight.
Yup, I concur. After watching this video, I did something I had never tried before. Took a chopper high up in the sky and deliberately cut the engine. It fell straight down and crashed. I wasn't able to control it at all. With airplanes, on the other hand, I have lots of experience landing them despite engine failure and other catastrophes. (Full disclosure: I've never crashed a real airplane or chopper. Never flown one either. My experience, though vast, is limited to MS Flight Simulator.)
I love when Neil is the Star of Star Talk. THESE are the Star Talk episodes I miss. Mostly Neil talking so we can hear and feel his passion and knowledge about the universe. No one is better to listen to than Neil. Js
@@milosstojanovic4623 How many simple things have you gotten incorrect? Would it be fair to shoehorn your intellect into a matchbox based on a single verbal erratum?
@@PronatorTendon this not minor and simple thing, it one of the most important scientist in history of mankind. If he did not know his actual name there is Google search.
@@milosstojanovic4623 Of course it's minor. If you got harshly judged by people for every speaking error you've made, you'd probably шhine about that even worse than what you're doing here. It's embarrassing for anyone above the age of 12.
A little FYI: Many studies have shown that people tend to retain information they gain by listening as they fall asleep. If you are not careful, you risk obtaining a lot of scientific information. lol
As always Dr Tyson does an amazing job of explaining extremely diverse topics in entertaining and informative ways. I have become totally addicted to watching StarTalk
Love the "trash can" questions. Maybe they should be considered the cherries on top of the sundae of general curiosity. Thank you gentlemen for another enjoyable afternoon.
i LOVE the passion that Neil deGrasse Tyson has!!! I wish more people shared this, about anything,... er, anything intelligent preferred lol. THANK YOU for the inspiration and knowledge!!!!!!!
Great Q & A Neil & Jordan! I am still waiting for Neil to design a T-shirt with a circular picture of a multitude of galaxies that says "Keep Looking Up"! Now that would be out of sight! 👍👍😉😉
@@KoRntech Yeah true, but not bad for a not-radio-expert. I would've liked to have mentioned the key aspect of _ratios_ of antenna length and wave length, as well as advances on antenna miniaturization like fractal antennas (which relates closely to the coiled-antenna design). The latter really gets to the heart of why we usually don't even see antennas these days. But to the extent that so much of our radio communication these days is done using microwaves, I think the answer he provided sufficed superficially.
@@harvey66616 As an FCC license holder it was a little cringy to me. Those tiny angled whips are using baseloading coils and a high voltage cap to tune a short stub to look ok for the 3M part of the VHF band. I'm predominantly on 2 and sometimes 6M as well as 70cm.
Can't wait to check out the Mr Tomkins series. I take Neil's book recommendations seriously. I purchased the Timelines of World History book as a result of Neil mentioning it and my son loves it. He has a thing for reference books such as encyclopedias, atlases etc. Really appreciate any book recommendations on here.
Am I the only one that actually thinks about these questions during everyday life? At work, playing golf, etc. just theorized questions that I come in contact with. Then I find out people have already thought about what I have. Amazing.
No, me personally I've been thinking about this stuff since I was 14 and found weed lol. Ever since, all day everyday I'm thinking about dark matter, how some infinity's are bigger than others, free will, quantum computing, how u get life from chemistry, or artificial intelligence just touch on what I thought about today...
@@alwaysblazen1369 You should write a song about it. But then again, as your handle says, I suppose-rather than singing-you prefer to "be burnin', not concernin' what nobody wanna say." ✊
Quick question for anyone who knows: If the sun were suddenly plucked out of the solar system, how would that affect our orbit around it? Would we feel the effects BEFORE seeing it? In other words...does the speed of light (the universal speed limit, as it's fondly referred to as) also limit gravity? Would we continue the same orbit without the sun for Less Than than 8 minutes? Wouldn't that break the cardinal rule?
@@jasonanderson1843 honestly, your answer only opened up many more questions, as any answer should. Light has no mass? So E=mc² has no bearing on it? How many forms of (energy?) have no mass? Light has been shown to be able to be slowed through a liquid. Can the effects of gravity be tweaked similarly through different substances? Er, if there were liquid on the moon, would the gravity of the sun warp around the earth to pull it harder than the earth alone? Does the sun bulge the ocean more wherever there is a solar eclipse?
@@St1ckY72 Gravity works in a very different way light does. Gravity is the emergent entity when something with mass takes an area in spacetime. In E=mc² c=the speed of light so I wouldn't say it has no bearing on it. Dark matter/energy, photons, gravity, to name a few. Anything that doesn't interact with the Higgs field as well. It doesn't have to be liquid though, if you add mass to the moon it'll increase its gravitation pull on the Earth and the Sun's pull on it will also increase. During a new moon or full moon the added tug from the Sun due to its position does help to raise the tides. Im sure it'll be the same case during an eclipse. Edit: grammatical errors
@@jasonanderson1843 weird. I nearly dreamed the emergent part of gravity. What I mean with E=mc² is, with no mass, a photon is incalculable? How do I explain what I mean about the moon...I was wondering if the body of one mass 'gets in the way' of the gravity that should be affecting another. I know it will inevitably, but to what extent. If... (With fake numbers inserted here because I don't know the proportions off the top of my head) 10 gravity pulls on earth from the sun, and 1.5 gravity is pulling from the moon, I'm looking at when the moon crosses in front of the sun. Does the combined pull equal 11.5 gravity, or 15 gravity? With that being in mind, is there a discrepancy between the numbers, such as 11.4, or 14.995? Something that would indicate the effect isn't perfectly multiplicative, of additive. Sorry about the...wordy reply. I don't really think in straight lines, I scoop info in heaps 🥴
It is impossible to agree any more than I currently do. lol While it is not Neil, there has been extensive coverage of fractals which include those tiny antennas inside of our cell phones. So many never realize how vital fractals are in nature. Perhaps if Neil does an entire video on fractals, many more will realize that fractals can even be used to detect cancerous tumors BEFORE they causes health issues. If you want, or have not yet seen it, I can provide a video link to a decent factual video regarding fractals.
@@Olga-jm5xf Well, I should have checked before offering the link to see if the channel was still in existence. I am unable to find the video I was referring to, but have found one which explains fractals just about as well as the now missing file. All that will be missing from this video are the calculations. th-cam.com/video/wkI0y43EqHI/w-d-xo.html
On the Final Question, you mentioned the fact that if the Sun was snatched away we would not notice it for eight and a half minutes. This is definately true for light and the other wavelinks of energy the Sun emits, but what about the loss of the gravity field the Sun also causes? Would the Planet immediately jolt outbound from it's current orbit? Or would we continue in the same Orbit for that same eight and a half minutes?
Effects of gravity is also confined by the cosmic speed limit. Evident from the fact that gravitational waves of collapsing black hole emitted 1.3 billion years ago was detected in the year 2015.
I was wondering this too! It’s hard to imagine it not happening immediately though, especially when you think about the “fabric” of the space time continuum
Neil actually mentioned it in his answer but you must have missed it - yes, the Earth does stay in orbit for 8,33 minutes after the Sun disappears, because gravity also propagates through space at the speed of light, not faster.
34:00 he's talking about emergence. If anyone listens to the early (season 4 I think?) episode of StarTalk with Alan Rickman (RIP), Alan brings up how he's fascinated with birds that move as one. It's a shame he probably never got to know that we're really looking into it now and we still don't know how they do this.
I'm all for it, but what frequency is what musical note? Is 3 quick fluctuating frequency blasts note A, note F, or is it a pause? What would determine tempo? I could waste everyone's time by continuing, but it is easier to state that there are so many variables to consider. Where do we start so to speak. lol We can and have directly rendered emitted radio waves into sound. Such as with planets and even distant stars. Of all I have heard, a pulsating neutron star sets more of a tempo than radio wave sounds from our sun. All I do know for certain is, I surely will not be the creator of said algorithm. lol
You could probably get some piano samples, and take measurements of the radio waves every quarter second. Average out the frequencies that are received and turn them into notes.
Heard the name Gamow and had to comment. I'm a PRA at CU Boulder working in the Helium Liquifaction facility in the tower named after him here. His graduation robes are less than 100 yards away. Great imaginer.
I have read a hypothesis that postulates that dark matter is matter vibrating faster than the speed of light. Would matter vibrating faster than the speed of light interact with traditional matter? Or same question but vibrating too slow
I completely agree! Our schools tend to omit important data such as Neil addressed regarding Brazil. Neil mentioning it is extremely important in my opinion.
About dark matter... I want it to be not parallel universe, but just another dimension, this is the gravity of the objects outside, something that was puted out of our "3+1D" into 4+1D world, we can't see it because we are ants on the sheet of paper:)
So, if dark matter is a set of particles that don't interact with "our" set of particles, could there be a whole table of elements that we can't perceive? And along with that, possibly life forms?
That's what I've said for years. Earth was put here during the GB phase of astrophysical gestation. Although the only evidence I have is Saturn's ring. But it holds more merit than any other theory.
11:23 szyzygy motion of the hands “the nearly straight-line configuration of three celestial bodies (such as the sun, moon, and earth during a solar or lunar eclipse) in a gravitational system”-Merriam Webster
38:00 there is video of a simulation of travelling at light speed doing the rounds...."You Won't Believe How Weird Approaching The Speed Of Light Can Get | Doppler Effect & Time Dilation" by astrum
What about the 1986 bird flocking algorithm by Craig Reynolds? I think similar work has been done for sardines showing that the emergent behavior only depends on a maintaining a few simple behaviors with the fish around you.
Yes indeed. I remember reading about Reynolds' simulation in a Richard Dawkins book. Forgot the name of the program though, and had to look it up-'Boids.' Another example: John Conway's _Game of Life._
How do planets and galaxies distort as space expands? How does space expand, different rates at different locations, constant or variable or affected by things? What point(s) is/are the centers of the expansion, do these points move?
As I understand it. Time is what actually pulls you towards mass. that describes it's physical function as a dimension. If you remove the other dimensions. You still get the same outcome? Because since everything resides in space and the fabric is being pulled towards some mass you will be pulled towards that mass even if you're not moving. So no length width or height dimensions just time.
I was thinking, if I walked at the same speed as light, wouldn't I be more or less blind, since light wouldn't be fast enough to pass me and hit objects in front of me, then reflecting into my eyes?
Dark Matter: I don't like the idea of a parallel universe.. I think it is the same universe with properties that we yet to understand, that make us think a parallel universe exists in an attempt to fill in that gaps of our lack of knowledge. What if our sensors are just wrong at long distances, they work fine on earth and we assume they work afar, but at long distances they generate incorrect data due to interference from say gravitational waves, string theory variables, etc..
Me neither, BUT the concept still needs to be proposed to describe/observe to demonstrate its usefulness (or not). He did say there is a mathematical model that shows that gravity is not constrained by the boundaries...which is what we're trying to explain...gravity without our std particles.
I love me some Jordan and he does absolute yeoman's work at those rallies (it's a shame his work hasn't been recognized and lauded more than it has), but I have to say that I think Chuck is the better foil as host to Neil Great work, all the same!
Fun fact: emergent behavior of flocks was actually studied by Dr. Kennedy and Dr. Eberhart out of Purdue in the 1990s, where they invented an evolutionary algorithm called particle swarm optimization (PSO) by modeling behavior. There's a whole field in computational intelligence that continues to study this, but due to the emergence of deep learning, it's not as popular anymore.
Hey I have a question for Neil! So when a black hole " spaghettifies " something, at what point does it stop spaghettifying? So could we make a camera small enough to not spaghettify and possibly see the footage of what it would look like? Or is that tech too far away from our lifetimes?
The gravity in a black hole is extremely strong that no Matter in the universe can survive it, even the small atoms themselves get stretched and destroyed. At the event horizon of a black hole, the escape velocity is equal to the speed of light. ... Thus, nothing that enters a black hole can get out or can be observed from outside the event horizon. Likewise, any radiation generated inside the horizon can never escape beyond it.
Tesla most probably had detected radio waves. He did not know from who it was sent. I think his quote on energy and vibration must came when he understood that he had caught interstellar signals coming from stars or other objects... As said before, stars do not send radio signals only. Think lower frequencies first, there you will see your beloved "gravity".
Hey Neil I have 2 questions for you: 1. Can you make an object like a ball that is not microscopic rotate up and sideways at the same way 2. Can you get rid of a black hole by surrounding it with large amounts of gravity to pull it apart
1. I could imagine, that you can have a ball with extremly precession moving. But I'm not sure, if that can be perfectly "sideways". 2. You can deform the event horizon of a black hole, so that it is not perfectly spherical anymore. For example, when you bring two black holes close two each other, the gravition in the space between them is kinda cancelling out. The radius of the event horizon in this direction would decrease to some degree, but it would never get so small, that you could reach the center of a black hole or rip anything of of it.
Brian Green at any opportunity these days is distancing himself from being described as a "sting theorist " he makes it very clear now that it is just something he spent time on.
The idea of emergence presented in regards to dark matter... If you study a single magnetic object, you may never realize it had the property of magnetism. Only in emergence of multiple magnetic objects and non-magnetic objects could you realize that matter could repel, attract, or have no influence over other matter in this way. There is precedent in existing knowledge that there can be matter that attracts or repels, or does not attract or repel other matter depending on circumstances/object properties. A fascinating thought experiment to think of dark matter in this way.
I use a sports analogy when I discuss the concept of emergence with non-scientific people. Bottom line is that you need a minimum number of something (players) to get a game going. When it comes to "existence", you need groups of things to have a significant effect on reality...hundreds, thousands, millions, billions, trillions, moles, or gajillions of particles to impact something.
about the planetary migration thing, one of the strongest pieces of evidence for Earth having formed in the inner solar system and getting its water from elsewhere, as opposed to forming in the outer solar system and moving inward, is its composition compared to other objects in the Solar System. Earth has a composition that is very similar to most other objects we see in the inner solar system, be it planets, asteroids, whatever. Earth is extremely abundant in all sorts of metals and heavy elements, whereas objects in the outer solar system, like the Jovian and Saturnian moons, not to mention about 85 gajillion miscellaneous rocks, centaurs, comets, etc. are very different in composition by comparison, being much more icy and having a lot more lightweight elements.
Neil said (in other Star Talk episodes), that he likes the idea, that dark matter is acutally extra-dimentional matter spilling it's gravity into our dimention. In this episode he thinks about interacting with it somehow. Wouldn't that mean, interacting with the objects in other dimentions which would seem like magic over there? Or the other way around: maybe people experiencing poltergeist phenomenon on earth aren't really turning insane but just witnessed someone from another dimention interacting with their dark matter ..
I expect that "interaction" could occur only if dark matter turned out to be a particle in our own universe. It's probably mutually exclusive with the "leaky gravity" hypothesis. I feel like the strongest argument against "leaky gravity" is that it presumes another universe overlaid on ours. Well, if there's one, why not many? And if many, why not some enormous number? And if some enormous number, then why isn't there effectively an infinite amount of gravity leaking into our universe? Granted, a possibly counter-argument to that line of reasoning is that some other effect limits the leaking, e.g. as by a converging infinite series that applies to the leakiness. I fear I will not live long enough to hear what science eventually says about all this, but I do hope I do! Of many intriguing mysteries left to explain, it's one of the greatest IMHO!
@@aprylvanryn5898 Dark matter would be everywhere, not just outside of some arbitrary boundary. It would contribute to the mass of the galaxies i.e. the mass of everything.
Also I have always thought dark matter to be the particles of another table as well. But they are particles left over from black holes. These particles that can make it thru these singularities and spaghetti effects are damaged and can no longer interact. Just my thought.
![ภาพนี้ก็ฮาเหมือนกันนะเนี้ย #7 SS9 [ พากย์นรก MEME.EXE ] | easy boy](http://i.ytimg.com/vi/MFDRhuT4RAg/mqdefault.jpg)
Seeing Neil giggle with joy from all these awesome questions was a treat. Thank you.
I have a low level to no knowledge of astrophysics and all things scientific - however I continue to listen to hours of Neil de Grasse-Tyson’s presentations and love it - each episode makes this 'science dummy' feel like I know something - my working knowledge is growing. Thank you ever so much Neil and your team. I love Chuck - he earths the programme with his highly intelligent wit and humour.
Neil DeGrasse Tyson: "My measurements trump your faith"
Quote of the year!
I'll speak up for ya Neil. While I don't know the "helicopter experts" of whom you refer, I can recount my experiences as a combat heavy lift helicopter aircrewperson, and confirm your original statement. As a general rule, helicopters "fall like rocks" (in contrast to airplanes) when they lose all engine power. As for auto-rotation, it works better on some helos, than others...but, it ONLY works IF you have sufficient altitude in which to create the necessary amount of lift before hitting the ground. Since the majority of rotary accidents occur immediately after take-off, or prior to landing, this technique is 100% useless (my VA disability rating verifies this) because there is not enough time to induce the air pillow. Yet in my aircraft, for instance, auto-rotation is still subject to elevation(atmospheric density), wind, humidity, gross weight; and if any of those conditions exceed a threshold when the power loss occurs, altitude be damned, it's going to leave a mark! When the main rotor(s) lose power they DO NOT produce enough lift to keep the helo in the air, it's the reason for having powerplants (engines) in the first place! They dont propel the helo through the air, they turn a shaft which, through transmission gearboxes, turn the main(s) & tail. Carry on...
Scary stuff
Is the number of rotor blades a factor?
@@shaunmitchell2069 On the whole, yes, more blades give more lift, but it doesn't scale linearly, across the various types. Although, the amount of blades are more indicative of its expected operating weight.
@@samadams164 thank you and stay well
Yup, I concur. After watching this video, I did something I had never tried before. Took a chopper high up in the sky and deliberately cut the engine. It fell straight down and crashed. I wasn't able to control it at all.
With airplanes, on the other hand, I have lots of experience landing them despite engine failure and other catastrophes.
(Full disclosure: I've never crashed a real airplane or chopper. Never flown one either. My experience, though vast, is limited to MS Flight Simulator.)
I love when Neil is the Star of Star Talk. THESE are the Star Talk episodes I miss. Mostly Neil talking so we can hear and feel his passion and knowledge about the universe. No one is better to listen to than Neil. Js
@StarTalk I was just at space camp for the visually impeared in Huntsville last month and it made me so happy when you mentioned it last week!!
I live near Huntsville--but the first time I heard about Space Camp for the visually impaired was on @StarTalk. Love this show!
I miss Chuck.
Where did he go, I miss him too
Same, he keeps not showing up on Cosmic Queries.
I was thinking that same thing! I think chuck is 99.999 % the reason I watch lol
Neil and Chuck for 2024
Where is he
Jordan is a great co-host. I look forward to him co-hosting often
He is an idiot, he said NikolAI Tesla, to not know something like that is insulting.
@@milosstojanovic4623 How many simple things have you gotten incorrect? Would it be fair to shoehorn your intellect into a matchbox based on a single verbal erratum?
@@PronatorTendon this not minor and simple thing, it one of the most important scientist in history of mankind. If he did not know his actual name there is Google search.
@@milosstojanovic4623 Of course it's minor. If you got harshly judged by people for every speaking error you've made, you'd probably шhine about that even worse than what you're doing here. It's embarrassing for anyone above the age of 12.
@@milosstojanovic4623 He's a comedian and maybe you mis-heard a joke. Get over it magaboy 😂
I enjoyed this so much. I've been listening to Star talks so much lately throughout the day and fall to sleep listening.
Felt that 💯
A little FYI:
Many studies have shown that people tend to retain information they gain by listening as they fall asleep.
If you are not careful, you risk obtaining a lot of scientific information. lol
@@theduder2617 I _think_ this crowd could live with that. 😊😄
@@MaryAnnNytowl
For sure. lol
As always Dr Tyson does an amazing job of explaining extremely diverse topics in entertaining and informative ways. I have become totally addicted to watching StarTalk
😂😂
😂
Love the "trash can" questions. Maybe they should be considered the cherries on top of the sundae of general curiosity. Thank you gentlemen for another enjoyable afternoon.
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Big fan of NDT . Even got my 9 yr old daughter hooked on him. Across the pond from little Malta.
once was a lady named Bright who could travel much faster than light, she departed one day in a relative way and returned the previous night.
I love looking into the background behind Dr Tyson. There's always really interesting things.
Jordan Klepper is a natural Star Talk co-host!
Thanks!
I can’t believe there wasn’t any mention of Jordan Klepper in the title or appearance in the thumbnail. What a pleasant surprise!
Yes.. It's Jordan again.. I love his angle of humor..
This is one of the most interesting episodes I've seen in a very long time! Thanks!
i LOVE the passion that Neil deGrasse Tyson has!!! I wish more people shared this, about anything,... er, anything intelligent preferred lol. THANK YOU for the inspiration and knowledge!!!!!!!
Best way to finish the day!
Lord knows how someone can give this free, highly informative channel a thumbs down. Bizarre !
What an amazing show, thank you very much from London, UK. I've learnt so much today.
Thank you Neil for explaining that space can expand faster than light! I've always thought so.
@Kenneth Schrank 🙄
"GALACTIC MUFFIN TOP" That's what they used to call my mom in high school!
Lol when she farted it would create a new galaxy 😅🤣
😂
Great Q & A Neil & Jordan! I am still waiting for Neil to design a T-shirt with a circular picture of a multitude of galaxies that says "Keep Looking Up"! Now that would be out of sight! 👍👍😉😉
Loved the radio antenna question! Kind of sort of forgot those even existed!
Sadly Neil didn't do that question any justice.
@@KoRntech Yeah true, but not bad for a not-radio-expert. I would've liked to have mentioned the key aspect of _ratios_ of antenna length and wave length, as well as advances on antenna miniaturization like fractal antennas (which relates closely to the coiled-antenna design). The latter really gets to the heart of why we usually don't even see antennas these days.
But to the extent that so much of our radio communication these days is done using microwaves, I think the answer he provided sufficed superficially.
@@harvey66616 As an FCC license holder it was a little cringy to me. Those tiny angled whips are using baseloading coils and a high voltage cap to tune a short stub to look ok for the 3M part of the VHF band. I'm predominantly on 2 and sometimes 6M as well as 70cm.
Can't wait to check out the Mr Tomkins series. I take Neil's book recommendations seriously. I purchased the Timelines of World History book as a result of Neil mentioning it and my son loves it. He has a thing for reference books such as encyclopedias, atlases etc. Really appreciate any book recommendations on here.
Jordan and Chuck on the same episode. Infinite entropy 🤣👌🤞
I love seeing Jordan Klepper's work from The Daily Show with Noah Trevor. His man-on-the-street interviews are hilarious!!!
Idk what it is, but I can't get into any episodes without Chuck!
Exactly
@@thanos879 :/ and I feel bad cause I do like Neil but their energy together is intoxicating.
Amen. I love Jordan Klepper and he makes for a great temp, but Chuck brings the show to a whole new level when he's on.
Am I the only one that actually thinks about these questions during everyday life? At work, playing golf, etc. just theorized questions that I come in contact with. Then I find out people have already thought about what I have. Amazing.
No, me personally I've been thinking about this stuff since I was 14 and found weed lol. Ever since, all day everyday I'm thinking about dark matter, how some infinity's are bigger than others, free will, quantum computing, how u get life from chemistry, or artificial intelligence just touch on what I thought about today...
@@alwaysblazen1369 You should write a song about it. But then again, as your handle says, I suppose-rather than singing-you prefer to "be burnin', not concernin' what nobody wanna say." ✊
Quick question for anyone who knows:
If the sun were suddenly plucked out of the solar system, how would that affect our orbit around it? Would we feel the effects BEFORE seeing it?
In other words...does the speed of light (the universal speed limit, as it's fondly referred to as) also limit gravity? Would we continue the same orbit without the sun for Less Than than 8 minutes? Wouldn't that break the cardinal rule?
Still around 8 minutes. Gravity moves at the speed of causality just as light, or anything without mass
@@jasonanderson1843 speed of causality? So that's a more accurate universe speed limit?
Thanks. I'll have to check it out.
@@jasonanderson1843 honestly, your answer only opened up many more questions, as any answer should.
Light has no mass? So E=mc² has no bearing on it?
How many forms of (energy?) have no mass?
Light has been shown to be able to be slowed through a liquid. Can the effects of gravity be tweaked similarly through different substances? Er, if there were liquid on the moon, would the gravity of the sun warp around the earth to pull it harder than the earth alone? Does the sun bulge the ocean more wherever there is a solar eclipse?
@@St1ckY72 Gravity works in a very different way light does. Gravity is the emergent entity when something with mass takes an area in spacetime.
In E=mc² c=the speed of light so I wouldn't say it has no bearing on it.
Dark matter/energy, photons, gravity, to name a few. Anything that doesn't interact with the Higgs field as well.
It doesn't have to be liquid though, if you add mass to the moon it'll increase its gravitation pull on the Earth and the Sun's pull on it will also increase.
During a new moon or full moon the added tug from the Sun due to its position does help to raise the tides. Im sure it'll be the same case during an eclipse.
Edit: grammatical errors
@@jasonanderson1843 weird. I nearly dreamed the emergent part of gravity.
What I mean with E=mc² is, with no mass, a photon is incalculable?
How do I explain what I mean about the moon...I was wondering if the body of one mass 'gets in the way' of the gravity that should be affecting another. I know it will inevitably, but to what extent.
If... (With fake numbers inserted here because I don't know the proportions off the top of my head) 10 gravity pulls on earth from the sun, and 1.5 gravity is pulling from the moon, I'm looking at when the moon crosses in front of the sun. Does the combined pull equal 11.5 gravity, or 15 gravity? With that being in mind, is there a discrepancy between the numbers, such as 11.4, or 14.995? Something that would indicate the effect isn't perfectly multiplicative, of additive.
Sorry about the...wordy reply. I don't really think in straight lines, I scoop info in heaps 🥴
30:00 I really wish you’d talked about fractal antennas. The fractal needs to be mentioned without inducing acid trip visuals more.
It is impossible to agree any more than I currently do. lol
While it is not Neil, there has been extensive coverage of fractals which include those tiny antennas inside of our cell phones.
So many never realize how vital fractals are in nature. Perhaps if Neil does an entire video on fractals, many more will realize that fractals can even be used to detect cancerous tumors BEFORE they causes health issues.
If you want, or have not yet seen it, I can provide a video link to a decent factual video regarding fractals.
@@theduder2617 Yes, please, what is the video link for the fractal video?
@@Olga-jm5xf
Well, I should have checked before offering the link to see if the channel was still in existence.
I am unable to find the video I was referring to, but have found one which explains fractals just about as well as the now missing file. All that will be missing from this video are the calculations.
th-cam.com/video/wkI0y43EqHI/w-d-xo.html
Klepper is pretty easily your best cohost, imo. Bring back Godfrey.
This was an Awesome session of Startalk!
What an amazing podcast, absolutely mindblowing questions!
17:40 Great explanation.
32:35 You are supposed to say... See what I did there?
Love that you're making star talk more political by having Jordan on.
Intelligent, rather than political...but I agree...Jordan is brilliant...
I’m glad we share the same time and space ❤️
I like Jordan, so I'm happy that he was on your show
Scott W Peterson sure hit the jackpot tonight
NEILL CALL UP VSAUCE!!! MICHAEL and you will be perfect together!
I agree, that would be quite an interesting conversation to behold!
SUCH a good questions!!!
Neil + Jordan = Awesomeness
On the Final Question, you mentioned the fact that if the Sun was snatched away we would not notice it for eight and a half minutes. This is definately true for light and the other wavelinks of energy the Sun emits, but what about the loss of the gravity field the Sun also causes? Would the Planet immediately jolt outbound from it's current orbit? Or would we continue in the same Orbit for that same eight and a half minutes?
Effects of gravity is also confined by the cosmic speed limit. Evident from the fact that gravitational waves of collapsing black hole emitted 1.3 billion years ago was detected in the year 2015.
I was wondering this too! It’s hard to imagine it not happening immediately though, especially when you think about the “fabric” of the space time continuum
Neil actually mentioned it in his answer but you must have missed it - yes, the Earth does stay in orbit for 8,33 minutes after the Sun disappears, because gravity also propagates through space at the speed of light, not faster.
I like how the TH-cam ads actually get put in the breaks. At least that’s how it played for me.
Knowledge, moving at the speed of light.
lol Jordan makes it a even better show , thanks
34:00 he's talking about emergence. If anyone listens to the early (season 4 I think?) episode of StarTalk with Alan Rickman (RIP), Alan brings up how he's fascinated with birds that move as one. It's a shame he probably never got to know that we're really looking into it now and we still don't know how they do this.
Not me listening to this while playing Minecraft.... nope.
(But if I was, I'd thank you for making it educational)
Love your show man, try to watch daily I am 61 1/2 😎 and still fascinated by your intellect and the questions people ask" wow
Bro I saw that title and was like this is too good to be true, turns out no chuck still cool tho
why is Chuck missing? Obvs still love startalk but is it really startalk without chuck?
Yea Chuck very important
But Jordan Klepper is very smart and clever. Highly recommend him, if you haven't seen him on the Daily Show or one of his own shows.
@@judyfrancis4515 I know exactly who Klepper is and a big fan of his, I am just point out that its not Chuck, and want to know where Chuck is!
I like the change of co-host every now and then, keeps the show fresh. But we use to Chuck, he still that dude
Could we make an algorithm that turns the radio waves from the sun into a continuous song (instrumental only of course)?
Of course but the question is who will.
I'm all for it, but what frequency is what musical note? Is 3 quick fluctuating frequency blasts note A, note F, or is it a pause?
What would determine tempo?
I could waste everyone's time by continuing, but it is easier to state that there are so many variables to consider. Where do we start so to speak. lol
We can and have directly rendered emitted radio waves into sound. Such as with planets and even distant stars. Of all I have heard, a pulsating neutron star sets more of a tempo than radio wave sounds from our sun.
All I do know for certain is, I surely will not be the creator of said algorithm. lol
You could probably get some piano samples, and take measurements of the radio waves every quarter second. Average out the frequencies that are received and turn them into notes.
Give me 10 years, and mabey I'll have something.
It would probably be the tune of baby shark.
Heard the name Gamow and had to comment. I'm a PRA at CU Boulder working in the Helium Liquifaction facility in the tower named after him here. His graduation robes are less than 100 yards away. Great imaginer.
When talking about light speed and what it would look like. There's ludicrous speed where others see you go plaid from SpaceBalls haha
This is the first video i saw on TH-cam without a dislike 😻
Jordan slays me, love you dude. ❤️😆
I have read a hypothesis that postulates that dark matter is matter vibrating faster than the speed of light. Would matter vibrating faster than the speed of light interact with traditional matter? Or same question but vibrating too slow
Thanks for making my Monday!
Another great video!!
Thanks Niel for stating we Brazilians are so much more than beach-going, soccer playing and coffee drinking people!
I completely agree! Our schools tend to omit important data such as Neil addressed regarding Brazil. Neil mentioning it is extremely important in my opinion.
Good feeling getting into bed to watch startalk and you see the thumbnail: Galactic Muffin Top - you know it’s gunna be a gooden
About dark matter... I want it to be not parallel universe, but just another dimension, this is the gravity of the objects outside, something that was puted out of our "3+1D" into 4+1D world, we can't see it because we are ants on the sheet of paper:)
So, if dark matter is a set of particles that don't interact with "our" set of particles, could there be a whole table of elements that we can't perceive? And along with that, possibly life forms?
That's what I've said for years. Earth was put here during the GB phase of astrophysical gestation. Although the only evidence I have is Saturn's ring. But it holds more merit than any other theory.
11:23 szyzygy motion of the hands
“the nearly straight-line configuration of three celestial bodies (such as the sun, moon, and earth during a solar or lunar eclipse) in a gravitational system”-Merriam Webster
Sun
Moon
Earth
Dark Shadow!mattters:ShadaiSIGhattterseemaddderhattters
TTLG
ANW
MADD
HAT
TeRS:SRpenTssspeech:heapsuponheeps
38:00 there is video of a simulation of travelling at light speed doing the rounds...."You Won't Believe How Weird Approaching The Speed Of Light Can Get | Doppler Effect & Time Dilation" by astrum
Outstanding episode Sir's BROOKLYN LOVES STAR TALK
What about the 1986 bird flocking algorithm by Craig Reynolds? I think similar work has been done for sardines showing that the emergent behavior only depends on a maintaining a few simple behaviors with the fish around you.
Yes indeed. I remember reading about Reynolds' simulation in a Richard Dawkins book. Forgot the name of the program though, and had to look it up-'Boids.'
Another example: John Conway's _Game of Life._
I wish I could understand this much more it’s so interesting
How do planets and galaxies distort as space expands? How does space expand, different rates at different locations, constant or variable or affected by things? What point(s) is/are the centers of the expansion, do these points move?
As I understand it.
Time is what actually pulls you towards mass. that describes it's physical function as a dimension.
If you remove the other dimensions. You still get the same outcome? Because since everything resides in space and the fabric is being pulled towards some mass you will be pulled towards that mass even if you're not moving. So no length width or height dimensions just time.
Jordan Klepper is the MVP of the trevor noah show. man is so funny
Thnks for all interessing infos ! 💯👍☺
Great episode sir👍🏽,it will be great if you can host Edward Witten..what do you think ?
I was thinking, if I walked at the same speed as light, wouldn't I be more or less blind, since light wouldn't be fast enough to pass me and hit objects in front of me, then reflecting into my eyes?
Dark Matter: I don't like the idea of a parallel universe.. I think it is the same universe with properties that we yet to understand, that make us think a parallel universe exists in an attempt to fill in that gaps of our lack of knowledge. What if our sensors are just wrong at long distances, they work fine on earth and we assume they work afar, but at long distances they generate incorrect data due to interference from say gravitational waves, string theory variables, etc..
Me neither, BUT the concept still needs to be proposed to describe/observe to demonstrate its usefulness (or not). He did say there is a mathematical model that shows that gravity is not constrained by the boundaries...which is what we're trying to explain...gravity without our std particles.
#TeamSeas
I love me some Jordan and he does absolute yeoman's work at those rallies (it's a shame his work hasn't been recognized and lauded more than it has), but I have to say that I think Chuck is the better foil as host to Neil
Great work, all the same!
I love Chuck but holy crap am I excited to see Jordan on here!
Fun fact: emergent behavior of flocks was actually studied by Dr. Kennedy and Dr. Eberhart out of Purdue in the 1990s, where they invented an evolutionary algorithm called particle swarm optimization (PSO) by modeling behavior. There's a whole field in computational intelligence that continues to study this, but due to the emergence of deep learning, it's not as popular anymore.
Could you please do a segment on how Clouds form and the different kinds of Clouds.
Regarding the time gap from what is happening until we process it in our brains means that experience is always about what happened in the past.
I see cosmic queries, I click
Hey I have a question for Neil! So when a black hole " spaghettifies " something, at what point does it stop spaghettifying? So could we make a camera small enough to not spaghettify and possibly see the footage of what it would look like? Or is that tech too far away from our lifetimes?
The gravity in a black hole is extremely strong that no Matter in the universe can survive it, even the small atoms themselves get stretched and destroyed.
At the event horizon of a black hole, the escape velocity is equal to the speed of light. ... Thus, nothing that enters a black hole can get out or can be observed from outside the event horizon. Likewise, any radiation generated inside the horizon can never escape beyond it.
@@matrixman7225 what if you go fast enough to cancel it out? Just in at 99% the speed of light?
What if dark matter is time itself
Tesla most probably had detected radio waves. He did not know from who it was sent. I think his quote on energy and vibration must came when he understood that he had caught interstellar signals coming from stars or other objects... As said before, stars do not send radio signals only. Think lower frequencies first, there you will see your beloved "gravity".
awesome show, binge watch time.🤩love the theories and the facts🤔.
Auto rotation only allows you to control where you are going to fall like a brick within a small parameter.
Hey Neil I have 2 questions for you:
1. Can you make an object like a ball that is not microscopic rotate up and sideways at the same way
2. Can you get rid of a black hole by surrounding it with large amounts of gravity to pull it apart
1. I could imagine, that you can have a ball with extremly precession moving. But I'm not sure, if that can be perfectly "sideways".
2. You can deform the event horizon of a black hole, so that it is not perfectly spherical anymore.
For example, when you bring two black holes close two each other, the gravition in the space between them is kinda cancelling out. The radius of the event horizon in this direction would decrease to some degree, but it would never get so small, that you could reach the center of a black hole or rip anything of of it.
Love it
Brian Green at any opportunity these days is distancing himself from being described as a "sting theorist " he makes it very clear now that it is just something he spent time on.
The idea of emergence presented in regards to dark matter... If you study a single magnetic object, you may never realize it had the property of magnetism. Only in emergence of multiple magnetic objects and non-magnetic objects could you realize that matter could repel, attract, or have no influence over other matter in this way. There is precedent in existing knowledge that there can be matter that attracts or repels, or does not attract or repel other matter depending on circumstances/object properties. A fascinating thought experiment to think of dark matter in this way.
I use a sports analogy when I discuss the concept of emergence with non-scientific people. Bottom line is that you need a minimum number of something (players) to get a game going. When it comes to "existence", you need groups of things to have a significant effect on reality...hundreds, thousands, millions, billions, trillions, moles, or gajillions of particles to impact something.
I am a simple man, I read '... Dark matter, spacetime's expansion, string theory and more ...' and I click.
How can a human know this much this and this in-depth about all sorts of topics? How is this possible?
about the planetary migration thing, one of the strongest pieces of evidence for Earth having formed in the inner solar system and getting its water from elsewhere, as opposed to forming in the outer solar system and moving inward, is its composition compared to other objects in the Solar System. Earth has a composition that is very similar to most other objects we see in the inner solar system, be it planets, asteroids, whatever. Earth is extremely abundant in all sorts of metals and heavy elements, whereas objects in the outer solar system, like the Jovian and Saturnian moons, not to mention about 85 gajillion miscellaneous rocks, centaurs, comets, etc. are very different in composition by comparison, being much more icy and having a lot more lightweight elements.
Neil said (in other Star Talk episodes), that he likes the idea, that dark matter is acutally extra-dimentional matter spilling it's gravity into our dimention. In this episode he thinks about interacting with it somehow. Wouldn't that mean, interacting with the objects in other dimentions which would seem like magic over there? Or the other way around: maybe people experiencing poltergeist phenomenon on earth aren't really turning insane but just witnessed someone from another dimention interacting with their dark matter ..
I love that so much but all the dark side is outside of galaxies in "empty space".
I expect that "interaction" could occur only if dark matter turned out to be a particle in our own universe. It's probably mutually exclusive with the "leaky gravity" hypothesis.
I feel like the strongest argument against "leaky gravity" is that it presumes another universe overlaid on ours. Well, if there's one, why not many? And if many, why not some enormous number? And if some enormous number, then why isn't there effectively an infinite amount of gravity leaking into our universe?
Granted, a possibly counter-argument to that line of reasoning is that some other effect limits the leaking, e.g. as by a converging infinite series that applies to the leakiness.
I fear I will not live long enough to hear what science eventually says about all this, but I do hope I do! Of many intriguing mysteries left to explain, it's one of the greatest IMHO!
@@aprylvanryn5898 Dark matter would be everywhere, not just outside of some arbitrary boundary. It would contribute to the mass of the galaxies i.e. the mass of everything.
@@toby9999 maybe I got a bit lose with my diction but most of it is outside of galaxies if it indeed is a particle
Also I have always thought dark matter to be the particles of another table as well. But they are particles left over from black holes. These particles that can make it thru these singularities and spaghetti effects are damaged and can no longer interact. Just my thought.
And start calling it a recycling bin instead of a trash bin, like computers.
These are very good questions! There ate a lot of smart people out there!