Michio Kaku: What is the Strongest Material Known to Man?

Michio Kaku: What is the Strongest Material Known to Man? | Big Think

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13 жыл бұрын

What is the Strongest Material Known to Man?
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OVERVIEW
Dr. Michio Kaku discusses the strongest material known to man--graphene. Graphene is an incredibly strong, one-molecule thick layer of carbon atoms that could someday be used to create life-sustaining nanorobots.
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DR. MICHIO KAKU
Dr. Michio Kaku is the co-founder of string field theory, and is one of the most widely recognized scientists in the world today. He has written 4 New York Times Best Sellers, is the science correspondent for CBS This Morning and has hosted numerous science specials for BBC-TV, the Discovery/Science Channel. His radio show broadcasts to 100 radio stations every week. Dr. Kaku holds the Henry Semat Chair and Professorship in theoretical physics at the City College of New York (CUNY), where he has taught for over 25 years. He has also been a visiting professor at the Institute for Advanced Study as well as New York University (NYU).
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TRANSCRIPT
Michio Kaku: Matthew, there is nothing in the laws of physics to prevent nanobots, microscopic robots, from circulating in the bloodstream and bulking us up, strengthening our bones, giving us the power of Superman. There is nothing in the laws of physics to prevent that. However, the reality is much, much more complicated.
Let’s take a look at nanotechnology today. It’s very primitive. It is a multibillion dollar industry only because we use it for coatings, coatings to make fabric stronger and coatings for different kinds of appliances. We also use it in airbags. Believe it or not there is a tiny sensor, an accelerometer in your airbag-compliments of nanotechnology-that create the gigantic explosion of an airbag.
But that’s today. The promise is that in the coming decades with carbon nanotubes, with graphene, we’ll create even new substances which can replace the silicon of computers, maybe even give us a space elevator. Graphene for example, is a substance made out of one-molecule-thick layer of carbon. Think about that. Think of like Saran Wrap made out of one-molecule-thick carbon atoms. That graphene is so strong in principle you can take an elephant, put the elephant on a pencil, suspend the pencil on graphene and graphene will not break. That is how strong it is. It is the strongest material known to science at the present time. However, having these nanobots in our body-that is decades away. We can’t even create a nanobot that is large that will do most of these things on a microscopic scale. Forget going down to the atomic scale. So to summarize: yes, in principle there is nothing in the laws of physics to prevent nanobots from invigorating us, changing our molecular structure, changing our bone structure and skeleton. However, the practical implementation of that is staggering. It’s not going to happen for many decades to come.
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Пікірлер: 3 600

@bigthink 4 жыл бұрын

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@travis9190 8 жыл бұрын

I would like to hear more about this pencil

@js100serch 8 жыл бұрын

+Myron Gaines it's probably made of graphene too XD

@undeaduprisingchannel2744 8 жыл бұрын

+Myron Gaines Awesome man

@_M27_ 8 жыл бұрын

lol

@ernestomanila7047 7 жыл бұрын

i really want to hear also about a fire ant slapped a human thrown to space and went to a massive block hole

@stefun60 7 жыл бұрын

good one :D hahahahah

@dannysmith785 9 жыл бұрын

Not sure abput the strongest, but the toughest is definiteltly my wife's roast potatoes.

@Abracastabya 8 жыл бұрын

Savage!

@zukokai5687 8 жыл бұрын

owned it man..

@rickwhittle227 8 жыл бұрын

might have to look at potatoes as a carbon source for making graphene .... but sugar is probably easier .....

@gov3rnor17 6 жыл бұрын

😭😭😭😭

@generousg83 5 жыл бұрын

Rofl!!

@mattranson4794 10 жыл бұрын

I remember in 1988 when I first learned to drive, I always thought it would be cool to have a computer help navigate your car. Of course GPS in cars was science fiction back then. Now these GPS computers can even indicate traffic activity. Amazing.

@LotsoSheeps 9 жыл бұрын

What is the Strongest Material Known to Man? It's simple. A Nokia 3310.

@VicariousReality7 9 жыл бұрын

I crushed one of those while carrying boulders

@Bobbelebob 9 жыл бұрын

VicariousReality7 I call bullshit.

@Bobbelebob 9 жыл бұрын

Siddesh Gannu Sounds more possible.

@breakthewastedspace 8 жыл бұрын

That's outdated, the new Nokia hammer can crack the Nokia 3310 but the house goes missing

@jeffries1232 7 жыл бұрын

chuck Norris the answer to any question is Chuck Norris

@gigar9000 12 жыл бұрын

It would be awesome to have someone like him to answer my curiosity everyday, and know that the answer is not just wild guesses.

@crumcon 7 жыл бұрын

I want to hear more about this elephant that can balance on a pencil.

@FerdousMahmood 10 жыл бұрын

Great Video! Thanks!

@avbferreira8986 10 жыл бұрын

made my day mate a funny post, your a class act all round

@tiffsaver 10 жыл бұрын

What did Einstein think was the single greatest invention of the 20th century? Compound interest.

@rickytickybobbywobbin7430 3 жыл бұрын

I had to leave and ponder this joke before I got it

@bbloopa 10 жыл бұрын

But will the PENCIL break??

@Alphadragon1979 10 жыл бұрын

I think the real question we all want to know is.....will it blend.

@imransiddiq4391 10 жыл бұрын

lol haha. wat a silly question.

@roadsector9527 7 жыл бұрын

made of graphene I guess

@_NOBODY_8888 6 жыл бұрын

The pencil has been boiled for safety

@innovationupdates2831 6 жыл бұрын

Wow, you guys really took that example very literally

@DoctorShrooms12 11 жыл бұрын

Cool story. Thanks for sharing.

@davidfaas58777 4 жыл бұрын

I like to listen to Michio Kaku. And learn from his knowledge of Science Thank You Michio Kaku

@In19944 7 жыл бұрын

This generation of humans missed being immortal by a century or two. Damn.

@khalilrahme5227 7 жыл бұрын

In19944 nope, by really really more than that.

@hankoiba9032 6 жыл бұрын

i would say a thousand if not more ,an average of 80 years period of life is far away from being eternity

@killap3nguin 6 жыл бұрын

In19944 stop funding wars and government benefits and it wouldn’t be that long

@Scarletraven87 5 жыл бұрын

In19944 Immortality is thieving room on newborns. It's not granted, it's earned.

@JoseGarcia-sm2yq 4 жыл бұрын

Then invernation is the voice. Wakeup 200 years in the future. And that's it.

@kenburns4547 10 жыл бұрын

Graphene isn't only the strongest substance: it is also 1. a battery 2. a semconductor, 3. a superconductor, and 3. a solar panel. And since it's carbon-based, it can be mass-produced. So this miracle-substance can be used to produce buildings and vehicles which are also supercomputers and power-conduits which collect and store solar energy. In fact, a vehicle constructed of graphene could have panels of virtually any size since they're so light and strong, and they could unfold like a giant map to collect enough solar energy to accelerate at 1g for manned vehicles, to 1000's of g's for unmanned ones. Such a vehicle could fly to the moon in an hour, Mars in a day, the asteroid belt in 2 days, or Jupiter in a matter of days-- all on solar-powered plasma-drive, because of the huge energy-mass ratio. Another possibility of graphene is self-replicating machines, which convert local carbon into machines that either perform functions, or create other machines; this could convert cabon-based planets into livable cities in a matter of days, complete with solar-powered electricity and breathable oxygen. This could convert the moon into a giant city in days, Mars in weeks, along with the asteroid belt into giant space-cities (since it's 3/4 carbon), and with the moons of Jupiter and Saturn in roughly the same time. Mercury could also be converted in about a day, due to the intense solar energy.

@ObjectsInMotion 6 жыл бұрын

Your comment is meaningless because silicon is also all those things. Making a thing is way more complicated than just having the substance used to make it. Just because I have steel doesn't mean I also have skyscrapers and cars and ships, and neither of those things are all 3.

@Banana-Boi 5 жыл бұрын

Ken Burns you used 3 2 times

@renegadeshinobi9801 5 жыл бұрын

The laser needed to power such a sail in space isnt real

@fabzy4L 4 жыл бұрын

Objects in Motion bruh, there’s thousands of research studies on both functionalization and quicker synthesis methods of graphene and CNT,CNP, CNDs, etc. It’s getting to the point where it’s becoming readily accesible to industrialize. I’ve published on that topic in research journals. And the use of silicon is actually a poor argument given the notion that abundance is a key parameter, not to mention physicochemical properties due to atomic sizes. But hey... i may be mistaken.

@fabzy4L 4 жыл бұрын

You lost me after the 3rd sentence. All these are purely theoretical with no actual practical knowledge established behind this. It’s like you’re having a sci fi dream with factual science.

@SevenMilliFrog 11 жыл бұрын

These debates are actually fun. They keep me entertained while I wait for the video to load.

@maliciousmikkelbarte936 7 жыл бұрын

i truly enjoy these vids

@Boraxed01 12 жыл бұрын

I love Michio Kaku. He is what keeps dreams alive.

@Toe_Merchant 10 жыл бұрын

Can't wait for the future

@jotaro1269 3 жыл бұрын

How you doing?

@carlosantuckwell 5 жыл бұрын

As for graphene, is it strong enough to contain a fusion reaction?

@micahphilson 6 жыл бұрын

Haha, accidentally started the video on 1.25 speed, and it actually sounded so normal, I didn't even realize it at first! Wow, when he talks at normal speed, it actually sounds slowed down!

@the_original_Bilb_Ono 10 жыл бұрын

They had nanotechnology inside solid snake in metal gear solid for the ps1 so sorry kaku it is very simple to do.

@SuperMaxxxey 6 жыл бұрын

John Wick would love to have that Pencil.

@Werewolfleague 11 жыл бұрын

Well thanks :) I will try it out once :)

@Milo0610 5 жыл бұрын

i love listening to you Prof. Dr. Michio Kaku

@Stringbean421 5 жыл бұрын

Me too. We have to cherish him because he's 71 years old now so lets hope he stays healthy to live many more years.

@vonbell3415 8 жыл бұрын

Satima's punch.

@Banana-Boi 5 жыл бұрын

Von Bell saitama*

@matthewsylvester3175 6 жыл бұрын

Funny, thought he was talking to me for a moment. 😂

@Lashb1ade 11 жыл бұрын

Where do you ask these questions?

@VulpisFoxfire 10 жыл бұрын

'Temporal dimension' fits better, perhaps. And..I don't think you thought out that last bit too well--presuming that exceeding c causes you to travel the other direction on the temporal axis, then from *your* persepective, that would be *exactly* what would appear to happen (or have happened if you don't observe again until you start moving 'forward' once more) to the matter that didn't go superlight with you.

@wompstopm123 7 жыл бұрын

NANO MACHINES SON!

@dmitryhetman1509 7 жыл бұрын

No.

@edgarazaky8256 7 жыл бұрын

CaptainSkelebones this

@LOWEFERRARI 6 жыл бұрын

I hope so...but any way they will set limitations...

@MaxxSeemov 5 жыл бұрын

Senator.

@smb2735 4 жыл бұрын

They can't harden in response to physical trauma yet

@darklinkx8 9 жыл бұрын

The strongest material in the universe is katchin.

@xaviorprime9203 8 жыл бұрын

+darklinkx8 dbz

@LOWEFERRARI 6 жыл бұрын

The sandal of my mother...rip my ass and don't get damage!

@syedarashdaanwar4321 6 жыл бұрын

Db fan spoted

@WarriorOfPiece 10 жыл бұрын

Hi Benjamin!

@JonathanGray89 10 жыл бұрын

If you were to actually think about it for longer than a second you might realize that the (visual) perception of time reversal resulting from speed in excess of that which light travels is made logical by the simple fact that as soon as you pass that threshold, the light following you, at least from your perspective, would reverse directions. Best example I can think of: A star blows up seconds before you pass the threshold and you get to witness the star appear to reform itself.

@Mockingbird115 10 жыл бұрын

Michio Kaku's the shit.

@oldfish64 9 жыл бұрын

The strongest thing in the world is a hornets legs. I saw a hornet lift a 300 lb man 6 feet off the ground.

@jackbonobo 9 жыл бұрын

But the LSD you were on sounds even stronger!

@JahonCross 9 жыл бұрын

Jackson Perrott LoL good one

@navitasnexus7082 9 жыл бұрын

Jackson Perrott Help me get up off the floor.

@oldfish64 9 жыл бұрын

Jackson Perrott Nah.....Moonshine does just fine.

@Gassebol 11 жыл бұрын

How short can you make those nanotubes? Im thinking about the development of solar

@JonathanGray89 11 жыл бұрын

"Won't" is a contraction of "will not", and "don't" is a contraction of "do not". "Won't" is the only contraction where the apostrophe does not replace all of the missing letters from the original phrase, hence "won't" would translate to "wo not"

@omegasrevenge 8 жыл бұрын

"There... Are... No.... Nanobots.... Right... Now..........ALL HAIL OUR AI OVERLORDS!"

@danthemanholt 10 жыл бұрын

Can a denser matter be concentrated out of silk that's stronger than graphene and would that be the cheapest source with the right extraction and remolding technology?

@OfficialGalaxite 9 жыл бұрын

As a scientist(all courses), I was completely MIND BLOWN when tries giving us a picture of an elephant balanced on a pencil with the tip of it exerted onto the ultrathin sheet of graphene and would still able to withstand. That's A LOT of pressure exerted. elephant with tons of weight(above 10,000 Newtons) and a sharp pencil(surface area less then 1 mm), HOLY GODLY! Da paper summoned by god! No religious mockery or etc. here.

@grahamdavies8924 10 жыл бұрын

To me, he's just babbling science stuff. The so-called "nanotechnology" of airbag accelerometers has very little to do with one-molecule-thick sheets of carbon atoms that can support an elephant (in principle?) or nanobots in our bloodstream. He's just using a term that nobody understands to sound knowledgeable.

@RomeTWguy 10 жыл бұрын

nanotechnology means manipulating matter on the atomic and molecular scale

@grahamdavies8924 10 жыл бұрын

I know. It has nothing to do with airbag accelerometers, which are merely MEMs.

@martony03 10 жыл бұрын

So grapheme is what was the underlying substance on the Roswell craft the upper layer was kevlar as we know it. The seem was the week link !

@TheDx917 10 жыл бұрын

I don't have time. I dropped out of high school just to pursue my dream, so I will have to get high school diploma first which would take a whole year then go to a university and study for a few years and probably miss out on many chances in my job (which is my main dream and it's paying me tremendously well) and my main goal in life. But still thanks for advice I'm actually studying physics on my own when I have time. :)

@demonpride1975 11 жыл бұрын

That maybe so. tho to go thru an infirmity such as being deaf and still composing some of the worlds greatest musical masterpieces shows how humans can overcome and rise.

@VorganBlackheart 11 жыл бұрын

I suppose they can, but what uses could have an extra benefit from it? If you're thinking about light bulletbroof uniform, for example, a thin layer of graphene would stop the bullet but it wouldn't prevent it from crashing your bones underneath the uniform. Of course there may be other applicable uses but does a lighter bulletproof material provide any significant benefits? On the other hand you never know when you might need sth

@danial9864 2 жыл бұрын

What's up with the CCs?

@leaettahyer9175 3 жыл бұрын

My moms house had a home heating tank in the backyard. It is about 1/3 full.

@r2shukla 10 жыл бұрын

So this is honestly the longest chain of comments I've personally seen on youtube. Since you guys were doing this anyways.. I wish you'd made it a never ending loop though. That would have been fun.

@musix-freeze2452 5 жыл бұрын

Thanks

@JonathanGray89 10 жыл бұрын

If you ever were to exceed the speed of light, you could actually perceive things as happening in reverse in the direction you are coming from. Time itself wouldn't go backwards, although the illusion of such would actually be possible. When referring to time alteration resulting from exceeding the speed of light, please keep in mind that this is the logic behind it.

@codysmith8997 10 жыл бұрын

Omg, if i just came to watch one of his videos, I HAVE TO CLICK ANOTHER ONE! lol i cant stop. This guy is an absolute genius!!!

@awesomechemistbyedward1506 10 жыл бұрын

Graphene is one layer of graphite atoms. Graphite is basically a huge series of cyclic benzene rings joined together endlessly, overlapping in layers. Though a single layer of carbon atoms (1 atom thick) may not seem strong, it actually is; due to the bonds strengthened by resonance and aromaticity.

@JonathanGray89 11 жыл бұрын

I was always told in English class to stay away from that, but I just looked it up and apparently I'm wrong. I think I still made my point, and thanks for pointing that out, really. It's always good to learn from an argument.

@jspinks2388 10 жыл бұрын

It could be done but, the Object would have to have so much unimaginable focused energy, if you could harness that insane amount of energy to achieve those speeds even for split nano-second I can't imagine any sustained periods you do wonder what would happen if it would be a gradual transition of time itself slowing down and even to the point of reversing. Or just be something the mind itself could not comprehend it visually, whatever appearance/illusion it takes on now that would be awesome xD

@harpfully 10 жыл бұрын

It's a step, a small step, toward understanding (*really* understanding) the nature of the universe. And best to start young, so your mind is flexible enough to handle the mind-blowing things to come as you dig deeper. (But unfortunately, the big picture can be hard to see at this point.)

@oosmanbeekawoo 6 жыл бұрын

The captions are going mad, mad, MAD!

@JonathanGray89 10 жыл бұрын

Without going back into the whole argument again, I'll just point out to you that this doesn't prove anybody "wrong". The debate was on known, naturally occurring or preexisting materials, without any kind of special modification. That said, changing the atomic structure of a material would in-fact change the interactive and possible visual properties of the material, effectively creating a NEW material. BTW Graphene is actually stronger per *weight* than Ionsdalite

@rosalbarodriguez1211 10 жыл бұрын

Excelente.

@tenma0528 2 жыл бұрын

Kaku's appearance is like Kung Fu Master that appears in Hollywood movies lol

@TurbhoeHDRemix 11 жыл бұрын

Atom composition my friend. As you may not know, nothing actually touches anything. Atoms in everything have electrons orbiting them when negative or positive charge, which repel when they get close, which is why we can't pass through objects. However, force applied can burst straight through piercing things by moving more atoms as it passes through. Graphene likely has many, many, many electrons orbting its atoms, and that is why it resists having its atoms separated so well.

@danthemanholt 10 жыл бұрын

Silk biodegrades but we could make it to where it doesn't biodegrade. Or hair, is hair stronger than silk at the same mass? If so we can utilize hair through a special cell culture and mold it into different densities of matter to use.

@redmetalicrobotdemon6409 6 жыл бұрын

Carbon nano tubes. press the threads into a form like fore a golf club and vacuum bag some epoxy like they do with carbon fibre. They are hollow so it will be lighter.

@Werewolfleague 11 жыл бұрын

Okay so can we create a graffine (sorry if I made a mistake) layer that will cover our bones ??? I know it sounds like I am Wolverine or Supersoldier noob but that idea is so cool and I think there will be immense pain during the operation taht will put it on the bone

@BigSwede7403 11 жыл бұрын

Depends on how thick the Graphene is. Marvel loves showing Wolverine tearing through steel like it was paper with his claws, completly ignoring that how hard an edge is does not matter unless you also have extreme sharpness (as in a mono-molecular edge) or ample force behind it.

@SLiceOfFun1994 3 жыл бұрын

The English subtitles are not in tune with the video

@anirudhbharadhwaj9553 8 жыл бұрын

hey then graphene is the strongest element not the diamond pls help me iam confused

@fktcd 11 жыл бұрын

er.. The elephant on a pencil. How much graphene would be under it? Just 1 molecule think of it? Just one layer? How wide? I'd like to see this principle demonstrated with steel. Obviously it wouldn't take as much weight, but just to get a clearer idea of what you're talking about. And what would the graphene be on top of, or what would be holding it?

@RomeTWguy 10 жыл бұрын

the graviton isn't negative energy, it's a hypothetical particle predicted by the standard model.

@A-Duck 11 жыл бұрын

One of those "if only..." techs I often wish I could live to see come into reality. Imagine having a perfectly toned body without ever needing to exercise, enhanced cognitive performance, increased vitality and longevity, 20/20 vision, disease immunity, etc, etc. Real fantasy grade tech. If only...

@howardkleger2 9 жыл бұрын

The hardest thing known by man is the covalent bond between an LCD prism panel and neglected water residue.

@danthemanholt 10 жыл бұрын

What's stronger, graphene or silk? Is silk easier and cheaper to produce if it were invested into to make it a huge material for manufacture. And would graphene be cheaper to produce with the right technology long down the line. Silk has twice the strength of the strongest most durable metal alloy at the same weight. Consuming silk has special health properties to it. Petroleum oil might also have special health properties if the contaminants were removed.

@skwiggsskytower2517 11 жыл бұрын

umm :) both the former and the latter are correct. According to my professor... "the scope part is referring to an optical device. At the time the word was coined they needed to separate telescopes from microscopes. Nanoscopic will be a common term when nano-bots start becoming a realizable." we might still say microscopic even when we start detecting at the Picometer scale while talking to the non-scientific. (they don't care how much smaller than "invisable" something is)

@j.moonstorm3158 10 жыл бұрын

Are you saying that what he was saying in this video is incorrect? Graphene nanotubes called Carbon Nanotubes or CNTs for short have the Young's modulus of 1-5 TPa and a tensile strength of 13-14 GPa and to put that into perspective Kevlar has the Young's modulus of 0.06-0.18 and a tensile strength of 0.38-1.55. I'm a NanoEngineer and I'm in architecture industry, but I have a plasma CNT deposition and I do nano technology research on the side, within the next decade we'll have CNTs with 126 GPa

@jspinks2388 10 жыл бұрын

Well they keep experimenting/colliding sub-atomic particles at ultra fast speeds you wonder what exactly could be achieved. If theoretically possible its far from what we will ever see, if we could just harness the ability to travel at some very ridiculous speeds hence altering damn time itself then it would start getting very interesting indeed.

@amankumar-hu5rz 6 жыл бұрын

how can I contact michio kaku? I have the way to reach speed of light without disapproving theory of relativity.

@JonathanGray89 11 жыл бұрын

(a) Spider silk = 240,000 psi (1.65 GPa); (b) Average elephant = 10,000 lbs; Breaking Point (sq. in.) = 1/(a/b) = 1/(240000/10000) = 1/24 = 0.042in^2 = 1.066mm^2 (Minimum area of pencil tip) High-grade alloy steel = 285,724 psi (1.97 GPa) Twaron or Kevlar = 435,113 psi (3 GPa) Graphene = 145,037,700 psi (1000 GPa) Conclusion: Spider silk is the weakest of those listed. Graphene is amazingly strong (over 600x stronger than spider silk).

@oneRyanJoseph 11 жыл бұрын

Alright, graphene is one layer of graphite, which you know as the material of pencil lead. So putting the elephant on top of the pencil is basically the same effect as him saying you put the elephant on graphene. The elephant is not on top of a pencil which is on graphene, the pencil itself is the graphene.

@TheDx917 10 жыл бұрын

I really wanna go to college and study physics because of this guy.

@jspinks2388 10 жыл бұрын

And the Nano-factor again is mind boggling just how powerful and more efficient everything is getting.

@shilpashivadasan5115 7 жыл бұрын

ilysm mr. kakuuuu ❤💗❤💗

@drege8510 4 жыл бұрын

We can however vibrate at more harmonious frequency

@WARDEATHFUN 10 жыл бұрын

If you google the top strongest materials of all time, spider webs are definitely up there (or a specific specie that is) but graphite surpasses them.

@RoyAndrews82 10 жыл бұрын

Graphene, has a stiffness of 4.5 x 10^8 N.m/kg but Carbyne tops them with a stiffness of around 10^9 N.m/kg.

@BlankFoxGirl 7 жыл бұрын

What about creating a nano bot which can deliver a targeted release of stem cells it creates from the bone marrow of the patient? Do we really need nano bots to perform more than a simple extract, convert, and guided delivery and release functions? This essentially means one could take a pill containing nanobots which then enter the bloodstream from the intestines after passing through the stomach, and then carry out their predetermined functions, then simply pass out of the patient's body through normal waste disposal means..

@chihang322 10 жыл бұрын

Nosuchthing8, I respect what you are trying to say in your comment. However, it is like comparing steel to concrete. Steel is strongest when it is being stretched. Concrete is strongest when it is being crushed. Same with neutron star material. It is formed during a rapid core-collapse of trying to fuse elements that consume more energy than they give. It is held up by degenerate neutrons, by quantum pressure. Graphene, on the other hand, is strongest when stretched. I like your comment, thanks.

@JonathanGray89 11 жыл бұрын

2nd point on this: I never made any statement that said that "spider web is stronger than steel". I was referring to the AVERAGE spider SILK actually being WEAKER than metal, by the terms of "tensile strength", while NOTING that since the silk is LESS DENSE than metal, if the same amounts IN WEIGHT of the materials were compared in strength, then and ONLY then would the silk be stronger (but the silk would require much more VOLUME area than the steel in order to be stronger).

@3lpancho657 3 жыл бұрын

Like a neutron the goes from positive to negative and back

@HUNarutofan19 11 жыл бұрын

Michio Kaku, I was hoping to get your opinion on a subject. Many people believe in the concept of shared consciousness and I was wondering if there has been any real scientific research put into the subject. We understand that the brain connects thoughts with neurons that fire electrical signals to send and receive information, so do these electrical signals radiate an electromagnetic field that other people could receive and communicate with?

@MrJ777666 10 жыл бұрын

I could latterly listen to this dude all day an not get bored

10 жыл бұрын

This guy's video's are awesome. I'd have to disagree with him about the carbon nanotube space elevator though. The longest reported carbon nanotube synthesized was ~18.5 cm, and they can't be conveniently grown to more than 1 cm or so. On top of that, no material is defect free, meaning the theoretical strength misrepresents it's true strength. Also, the hallmark of good structural engineering materials is also safe failure, but carbon nanotubes build up a ton of elastic energy before they fracture suddenly (i.e. not safely). It would be a great feat of engineering these problems can be circumvented, but it will be a long time before carbon nanotubes and graphene are useful outside of composite materials.

@lifeisgood339 5 жыл бұрын

Cant? Ha you're so wrong

@adaadavada2893 10 жыл бұрын

You are partially correct. But that does not make my above statement wrong! Actually, what you say was mentioned in my previous comment too (the "suicidal" part). Your mistake is that you have the impression that there are some people that use technology for right purposes only, while there really aren't any (history has clearly demonstrated this).

@JonathanGray89 10 жыл бұрын

Knowledge is power. With great power comes great responsibility. Part of this responsibility is to impart that knowledge onto others. One cannot do such a thing when they are confined to constantly focusing on themselves. So I look for less fortunate people such as yourself so that I can impart my wisdom upon them. My wisdom to you is "Focus on your own damn self.". Thank you.

@JerickaBingham 7 жыл бұрын

thanks for your videos.have a blessed day.loves you allasalaam peace سلام

@Jooonathan 9 жыл бұрын

What if we do not look at consciousness as a part of the brain, but rather as a pattern of energy that is 'telling the brain what to do'? You could by example have your 'consciousness' give information to your brain and the brain sending that information back to the body, which sends back the new state of the body.

@FrederikFalk21 11 жыл бұрын

1 layer thick graphene couldn't hold an elephant on a pencil as far as any other source on the web goes. Everywhere it is stated you would need about 0.5mm of graphene to do so - which is the thickness of cling film.

@KillerHornetK94 10 жыл бұрын

If you want to be a physicist, then yes, go to college. If you just want to know about science, then there's nothing stopping you at all. Internet is home to Terrabytes of information. Libraries contain some of the most fascinating books. Initiative is key.

@WiseGuy508 11 жыл бұрын

Love your profile pic. Fallout...cool

@JonathanGray89 10 жыл бұрын

Considering there is currently no efficient way of mass producing Graphene, I would expect the cost to be substantial.

@JeremyStover 11 жыл бұрын

The only problem so far, is it is almost impossible to produce graphine sheets without frayed edges. Acting just like a phone book, you create a tear along the side and after that, you can easily rip it.

@Jammsbro1 11 жыл бұрын

The idiom of "man" originates in the word for "mind", it is not a masculine term in the regard used and is commonly misconstrued as such, usually by those who have bot done the proper reading and like to jump to conclusions without thinking.