Thanks to 'Martin “Doomsday” Pfeiffer (⧖) 🏳️‍🌈 ' who reminded me of a few of these @NuclearAnthro twitter.com/NuclearAnthro Don't try this at home kids.... or parents.

@toppatblue

4 жыл бұрын

Друг

@thomasfholland

4 жыл бұрын

Scott Manley Still waiting for your into having a great white shark swimming across...

@nanolog522

4 жыл бұрын

You could try it at home, the fine, if I recall correctly, for detonating a nuclear explosive inside the US, is 50 USD + damages.

@TechyBen

4 жыл бұрын

I also consider every problem solvable via personal jetpack. (Also Disney did this with the IronMan suit, and StartTrek does it with phasers/shields/deflectors)

@jerrywatson1958

4 жыл бұрын

Just out of curiosity how strong of a magnetic field would it take to contain a h bomb explosion in space or a vacuum. Is it only heat from fusion that we can use to generate electricity?

Concrete vapour is not a term one hears very often.

@HarryWizard

4 жыл бұрын

unless you live in arizona

@foxpup

4 жыл бұрын

I prefer communist vapor. Can that stuff up and sell it. :-)

@Triumph263

4 жыл бұрын

"You mean concrete dust?" "Not exactly."

@Psycorde

4 жыл бұрын

Neither is "nuclear-propelled manhole"

@kerbodynamicx472

4 жыл бұрын

foxpup what about capitalist vapor?

I did some tests (in a video now removed due to use of explosives) that proved that the metal plate would have been deformed into a cone or even rod shape during launch thus greatly increasing its chances of making it through the atmosphere. Also I figured that the time, direction of launch and a 6x earth escape velocity would result in a highly elliptical orbit about the sun with the perihelion well below the orbit of mercury. This means that not only was it the fastest moving object created by man it very well still could be.

@badbeardbill9956

4 жыл бұрын

Six times Earth escape is more than solar escape velocity from Earth’s orbit - if it made it into space and retained enough velocity, it might not even be in the solar system anymore.

@wernerviehhauser94

3 жыл бұрын

Even in the shape of an APFSDS projectile, the shear forces on the surface layer could have ground the thing to dust, since it was not made out of high strength material. Maybe we should do some experiments on construction steel projectiles in the lower atmosphere at hypersonic speeds ;-)

@st4rlightr4v3n4

3 жыл бұрын

@@badbeardbill9956 I doubt it was going quite that fast when it left the atmosphere. It left the tunnel at that speed, but it would have had to share its energy with a lot of air on the way out.

@badbeardbill9956

3 жыл бұрын

@@st4rlightr4v3n4 Remember, this is a lower bound on its speed - it could have left the tunnel even faster. The thing is, at that speed it would go so fast that it may escape before losing most of its velocity. Of course if it was going fast enough even air would be approximately solid.

@rostamkaval2125

3 жыл бұрын

R

Ever heard about the crazy idea to use small low-yield nuclear bombs to make the tritium necessary to make the high yield hydrogen bombs? This was before anyone figured out how to make tritium in research reactors, and before the Canadians had made their heavy water "CANDU" reactor, which creates some tritium as a by-product of its normal operation. In the 1950s and 1960s, getting hold of enough tritium to make the really big warheads was a big problem, exacerbated by the fact that it has a half life of about 12 years, so every few years you need to replace some of it. It was however known that if you subject lithium-6 to a short but intense neutron flux, it splits into equal quantities of helium-3 and tritium. So they came up with an idea with an appropriate acronym: BATS, aka Bomb Assisted Tritium Supply. Basically, make a shallow depression out in the desert somewhere and line it with a thick layer of asphalt, with loads of lithium-6 mixed into the asphalt. Then bang off a few low-yield (a few kilotons each) nuclear bombs next to it. The neutron flux from the nuclear detonations converts some of the lithium into tritium. So you then wait for the fallout to disperse and the short half-life isotopes to decay away (a few months, maybe a year maximum), then go in and rip up the asphalt and process it to get the tritium out. All perfectly feasible, and was a serious consideration until the partial test-ban treaty put a stop to it.

@scottmanley

3 жыл бұрын

This has given me an idea for my next video - thanks!

@ChemEDan

2 жыл бұрын

​@@scottmanley I've always wanted to use a hydrogen bomb as a camera flash to see underneath the clouds of Jupiter. Bomb and probe both under the clouds - what would we see?

@anuvisraa5786

Жыл бұрын

the same was proposed to make americium and californium for super small nukes, fors x rays lacers and small emp / neutro devices

@herrbrahms

Жыл бұрын

And now here we are in the present day, where tritium from research reactors is plentiful enough to be powering the night sights of civilians' firearms.

@Skorpychan

5 ай бұрын

@@ChemEDan Likely an extremely large explosion as all the hydrogen atmosphere nearby fuses along with it. Don't nuke gas giants.

Play connect 4 on the moon's surface with the other nuclear powers. Luna(tic) World Series

@reuvenpolonskiy2544

4 жыл бұрын

LOL

@kingsizedmidget7294

4 жыл бұрын

This deserves a lot more likes

@Kumquat_Lord

3 жыл бұрын

I'd play tic tac toe, it uses fewer nukes

@marc-andreservant201

3 жыл бұрын

Connect Four would be uninteresting (first player wins with perfect play). Chess or Go would be more fun for a battle of the AIs.

@BytebroUK

3 жыл бұрын

@@Kumquat_Lord Nah - the player who goes first can't lose.

Scott Manley: "You could use nukes to propel a spacecraft!" Also Scott Manley: "Fly Safe!"

@TheBLC94

4 жыл бұрын

Could, not should

@andrasbiro3007

4 жыл бұрын

Ironically that would be the safest spacecraft by far. Because of the insane power you don't have to make it from tinfoil like every other one. They actually planned to build it in a shipyard. Also, when your engine works with explosions, failure means a lack of explosion.

@OperationDarkside

4 жыл бұрын

*Flai sehf

@daveh7720

4 жыл бұрын

The people flying are safe. It's the people on the ground who are in danger.

@LeCharles07

4 жыл бұрын

@@andrasbiro3007 Tell that to the connecting rod that punched a whole through my engine block. :P

“If you have nuclear weapons please don’t try any of these”. Nice public service announcement from Scott. 😎

@UochRS

4 жыл бұрын

sad.

@jalexanderdatkins

4 жыл бұрын

“If you own nuclear weapons, don’t try this at home. Or at least ask for parental supervision.”

@KI4HOK

4 жыл бұрын

Don’t give kim jong-un any bright ideas please!

@ericchambers9023

4 жыл бұрын

Cody: Hold my beer....

@quillmaurer6563

4 жыл бұрын

Trump (a guy who has nuclear weapons), just a few days later: "How about nuking a hurricane?"

I am so glad that Scott spoke about the extinguishing of oil wells in Russia! My grandfather took part in this, and this is my favorite story of his!

@jeffbenton6183

2 жыл бұрын

Do they still do it? If not, what method has supplanted it?

@dupre7416

2 жыл бұрын

This reminded me of one of my favorite John Wayne movies, "Hell Fighters". Hard living, hard drinking, oil well fire fighters. Pretty intense for an old movie.

"I'm Scott Manley. Fry safe!"

@ffggddss

3 жыл бұрын

Did you mean, "I'm Scott Manrey. Fry safe!" ? Fred

@patrickscalia5088

2 жыл бұрын

"Nook the myun." I love this guy's accent.

2:00 I don't usually smoke, but when I do, I light it with nuclear bombs.

@Walter-wo5sz

4 жыл бұрын

This is a new solution to the Fermi paradox. The aliens heard we have thermonuclear cigarette lighters.

@GREENDIAMONDNEWS2012

4 жыл бұрын

you guys are funny-amusing-YES

@stupidburp

4 жыл бұрын

Probably not a good idea to smoke at all anywhere near an area with potential fallout. There is some chance you could inhale radioactive particles. Wear a gas mask instead.

@MarkMcDaniel

4 жыл бұрын

Shouldn't this be a legendary object in FallOut?

@stefanluginger3682

4 жыл бұрын

Stu Bur Ted Taylor died at 80

Mythbusters with a nuclear device...imagine the possibilities!

@damoclesecoe7184

4 жыл бұрын

We'll get that pesky cement mixer this time!!

@Electric_Bagpipes

4 жыл бұрын

The Cool Guy imagine the military actually doing this as a joke? Back in the day, they might have.

@stvdagger8074

4 жыл бұрын

Could be worse, imagine "Jackass" with nuclear weapons!

@ryantaylor1142

4 жыл бұрын

They'd just single social justice they'd be pretty lame

@PastimeVP

3 жыл бұрын

Will this jacket made of duct tape protect Buster from a nuclear explosion if we put him at ground zero? [[ P l a u s i b l e ]]

I love XKCD's euphemism about certain events energetic enough: You don't "burn" or "explode" or anything like that. You just stop being biology and start being physics. wait you have that book behind you in frame.

@troys9222

11 ай бұрын

...and chemistry, though I suppose physics covers that.

@devilsoffspring5519

9 ай бұрын

@@troys9222 Yes, chemistry is a branch of physics

"if you have any nuclear weapons, please don't use them at all" But I blew my budget on making them. All this effort and I can't even use them?

@lostpony4885

2 жыл бұрын

Too pricey for 4th of july?

11:30 "They now have a reservoir which is only slightly radioactive" - only slight radioactive, the gold standard of Soviet engineering.

@stamasd8500

4 жыл бұрын

3.6 Rontgen - not great, not terrible.

@CoffeeFiend1

2 жыл бұрын

Specifically stated that only animals would drink from it. More rump steak to go around if every cow has multiple legs and assholes. 🤌

Use nukes to power a flashlight, so i can finally realize my dream of a flashlight with noticeable recoil.

@pyro__patrick5724

4 жыл бұрын

Thank God you wrote flashlight not "fleshlight"

@AuburnTigers111

4 жыл бұрын

So an Imperial Las gun?

@matchesburn

4 жыл бұрын

Nuclear-pumped lasers are a thing. Granted, not exactly a flashlight, but... Y'know... Kinda close enough.

@Wimpymind

4 жыл бұрын

@@matchesburn yes but does it have noticeable recoil?

@MrMyu

4 жыл бұрын

@@AuburnTigers111 Q: "What do you call a lasgun with a laser sight?" A: "Twin-linked"

I'm sorry, did I hear: _"The_ *Most Fun Things* _you can do with Nuclear Weapons?"_

@davidkueny2444

4 жыл бұрын

They're probably a lot more fun than what we use them for now (sitting in silos so that nobody nukes us), and *definitely* a lot more fun than using them on *people.*

@thecoolguy7403

4 жыл бұрын

yes you did hear that

@Chrisamic

3 жыл бұрын

Everyone needs a hobby.

@mustlovedragons8047

3 жыл бұрын

@@davidkueny2444 Oh definitely more fun than using them on people! Edit: Can you Imagine giving the Mythbusters nukes?

@mustlovedragons8047

3 жыл бұрын

@@thecoolguy7403 _American national anthem intensifies._

"If you have nuclear weapons then don't try any of these ideas" He prbably means Jeff

@johndododoe1411

3 жыл бұрын

Which Jeff?

@imarchello

3 жыл бұрын

Jeff Who?

“Let’s nuke the moon!” “... just... why?” “idk, sounds fun... wait, no I mean... morale! America! O-oh say can you - hey where are you going?”

@davidhollenshead4892

4 жыл бұрын

Actually we should nuke the moon, like an underground test. With the correct yield, in ten years we could build an underground lunar city in spherical void...

@jesusmora9379

4 жыл бұрын

@@davidhollenshead4892 and then the earth gets overwhelmed by morlocks...

@rwbimbie5854

4 жыл бұрын

Isnt the sun already nuking the moon.. and has been for quite a while

@AAhmou

4 жыл бұрын

@@davidhollenshead4892 Considering the moon is already an irradiated dead rock. Another irradiated deeper crater wouldn't do harm.

@chrimony

4 жыл бұрын

@@davidhollenshead4892 Or you could just use the lava tunnels that are already there.

Best thing we could do with nuclear energy: to *send a spacecraft to Alpha Centauri*

@cmdraftbrn

4 жыл бұрын

then everyone gets pissed with each other and follow 7 distinct ideologies

@5Andysalive

4 жыл бұрын

They see us coming with nuclear bombs and declare war!

@jeffvader811

4 жыл бұрын

Honestly, I would love if we took some of the stockpiled nukes we had and built a massive Orion drive, flew it out to Mars, and set up a colony. Or better yet, send one to the Saturnian system / Callisto and Ganymede to explore the moons. The sad thing is that its completely within our reach (half the design work and hardware is done already!) yet so politically unfeasible that it'll remain a dream forever. Unless some deadly rogue asteroid pushes everyone to collaborate that is... (Evil scheming ensues)

@Iron-Jupiter

4 жыл бұрын

Yes that would be cool

@GoldSrc_

4 жыл бұрын

That would be amazing, but people are dumb. I mean, morons are still trying to stop the construction of the TMT in Hawaii, they would probably go ape shit as soon as they hear "nukes in space".

Today: NOOO WE CANT USE NUCLEAR POWER ITS TOO DANGEROUS 1950's: Atomic bomb powerplant!

@constantinosladd51

4 жыл бұрын

its not dangerous, dont spread these lies.

@Maxgamer-fd7hv

4 жыл бұрын

Nuclear power plants are wayyyyyyyyy less dangerous than fossil fuell plants. edit: lol I wrote thermal plants XD

@TS-jm7jm

4 жыл бұрын

@@Maxgamer-fd7hv nuclear power plants are essentially thermal power plants, do you mean fossile fuel plants? Almost of our power is thermal, just different sources of heat

@Maxgamer-fd7hv

4 жыл бұрын

@@TS-jm7jm Ya fossil fuel basically

@Maxgamer-fd7hv

4 жыл бұрын

@@TS-jm7jm ye I mean fossil fuel, ty for reminding me that nuclear powerplants generate electricity by producing steam.

Orion is used to great effect in the fictional "Footfall" by Niven and Pournelle. Great SF, well worth a read.

LOL using nuclear explosions to extinguish fires. If that ain't "burning the village in order to save it", I dunno what is. After Gulf War 1, lots of nations contributed to the effort to extinguish all the oil wells Saddam Hussein set on fire. IMO, the Hungarians had the best, most practical and effective idea -- they put a jet-fighter engine on a flatbed truck, pointed the exhaust nozzle at the fire, revved-up the engine to full blast, and blew-out a raging oil-well inferno as if it were a birthday candle. No nukes required!

@radishhat5736

4 жыл бұрын

Bombing a fire is actually a decent way of putting our a fires, especually oil fires historically and even today the shockwave tends to extinguish most fires granted a nuke is overkill, The problem with the big fan solution is that you need to get water (otherwise youre just fanning the flame) and you need a lot of water for big flames. Dynamite is often easier in some cases

@jugganaut33

4 жыл бұрын

Radish hat yeah I’m pretty sure that’s how they fixed the BP oil spill/fire too.

@richardgreen7225

4 жыл бұрын

Next time someone puts candles on your birthday cake, clap your hands just above the candle flames to put the candles out. It works and it is probably better hygiene.

@shawnpitman876

4 жыл бұрын

We use fires to extinguish fires too. The world is strange.

@johndododoe1411

3 жыл бұрын

@@richardgreen7225 You'd be blowing the candle wax into the cake from that angle.

"Don't do any of these" But i really really wanna see them nuke the moon!

@j.jasonwentworth723

4 жыл бұрын

I wonder if Carl Sagan chuckled knowingly at the opening episode of "Space: 1999," since the study he had worked on involved the very same thing, just on a smaller scale... :-)

Given the timing of this video, I thought for sure you were going to mention nuking a hurricane.

@AwakenedAvocado

Жыл бұрын

Its a good idea

1% of 1 bar? Those are rookie numbers. Gotta pump the numbers up, Musk.

@qdaniele97

2 жыл бұрын

Well, you gotta look at those numbers in perspective: Raising Mars atmosphere everage pressure by 1% of a bar means increasing it by more than 100%. I'm pretty sure that more than doubling Mars atmosphere would have perceptible effects on everage tempertures. In turn, higher temperatures (even by just a fraction of degree) would mean more CO2-ice trapped underground will begin to sublimate.

"If your only tool is a nuclear weapon then every problem looks like it needs a giant hole in the ground" - Scott Manley, the Shakespeare of our time

13:43 "yeah its possible but we would need enough nukes to turn the enirity of the soviet union into a radioactive wasteland" "agreed, we might aswell just use the nukes on the soviets

Brand new subscriber...fantastic content, love physics and you've absolutely made it accessible and easy to understand so thank you!!

Does it involve removing a hurricane? Asking for a friend....

@joelnord4699

4 жыл бұрын

Yeah he forgot that one

@joedufour8188

4 жыл бұрын

@doodr What could go wrong? BTW, a nuke would not make a dent in a fully formed hurricane. The nuke would be far too small to disturb it enough. This would be true even if you used the Tzar Bomba.

@joedufour8188

4 жыл бұрын

@doodr Only because your incredibly ignorant and value your own entertainment over everything else. No wonder things are going to hell on this planet. The population is getting dumber by the day.

@Cailus3542

4 жыл бұрын

Joe Dufour Quite true. Can you imagine someone so stupid that they don’t recognise an obvious joke?

@deep.space.12

4 жыл бұрын

@@joedufour8188 They did want to nuke the moon for "american morale"...

You forget the most important thing of all. To make sure that the Spider is really gone.

@Tautolonaut

4 жыл бұрын

It's the only way to be sure.

@moncef0147

4 жыл бұрын

To be honest i still wouldn't be sure.

@CantankerousDave

4 жыл бұрын

If it’s an Australian one, that might only make it angry.

Glad he gave that warning at the end, I was about to try that moon one.

Good job on your selection of supporting graphics, you really did a good job hunting down those animations of nuclear blasts (Plow shares, propulsion, etc)

Lets not forget my favorite. Project Excalibur. Nuclear. Explosion. Lasers. EDIT: anyone knows any games to utilize this concept? Besides SoTS 2

@44R0Ndin

4 жыл бұрын

Not just your ordinary laser either, these were X ray lasers! With no mirrors!

@Psycorde

4 жыл бұрын

@@44R0Ndin Now that sounds like fun

@simonoconnor7759

4 жыл бұрын

Weapon of choice for David Weber's Honorverse.

@kayleigha4132

4 жыл бұрын

@@simonoconnor7759 Ahh, laserheads. Perfect for getting around that pesky sidewall.

@ronaldgarrison8478

4 жыл бұрын

Dang, I was going to say that. Beat me to it.

Fun fact, I used to work a few km's from that reservoir crater in Kazakhstan.

@deusexaethera

4 жыл бұрын

Doing what?

@OneLeatherBoot

4 жыл бұрын

@@deusexaethera exploring for minerals and later mining them. We had an underground test hole approximately 1km from the edge of the mine. You can look up all the test locations on google earth and it gives the kt rating. The crater is easy to find and from there it is easy to see the mine sites. Karazhira Coal is still active for that region of Kazakhstan. There are several gold, coal and molybdenum mines in the former testing polygon. The stream coming from that crater we used to drive through going to and from work and several farmers live and graze their livestock on the banks of that stream. The area we were in was the site of underground testing, so didn't have surface contamination and we used to monitor heavily water, air and soil's - more to put workers minds at ease rather than due to risk.

Damn, now i want to disassemble my smoke detector and make supercharged cannabis seeds. (Not actually, and you shouldn't either lol)

So... if nuking the polar ice caps of Mars would release CO2, albeit a small amount, couldn't you theoretically start dropping asteroids & comets that are made up of ice onto Mars?

@blackhawks81H

3 жыл бұрын

@temporarysanity Lighten up Francis.

I think part of the reasoning for melting the polar ice caps on Mars isn't just to release the carbon dioxide there, but to increase the surface temperature of Mars enough to start outgassing some of the CO2 locked in the soil across the whole planet. At some point this should create a feedback loop that continues to feed itself and grow. I remember reading about this in Robert Zubrin's book.

@hexadecimal7300

4 жыл бұрын

But Mars will just lose it all to space again..Need to find some way to start up Mars's magnetic field up again. Guess you could try that with BIG nukes too?

@ShaunRF

4 жыл бұрын

@@hexadecimal7300 NASA has a proposal for an artificial magnetosphere on their website. Regardless, even without the protection of a magnetosphere loss of atmosphere takes far longer than most people assume.

@dsdy1205

2 жыл бұрын

@@hexadecimal7300 to be clear, when you say lose it to space again, that's on the order of millions of years. Between that time Mars will be an interesting place to live, and no one's stopping us from topping off the atmosphere with a stray comet now and then.

@slickrickulous

2 жыл бұрын

@@dsdy1205 Uh, might not be that easy when people start living there.

@brianhaygood183

2 жыл бұрын

@@slickrickulous Imagine receiving that note from the government in the mail. "Sorry for the inconvenience..."

Super sweet corn was developed in the 60's by agricultural specialists in Illinois. We lived across the street from one of the guys working on it. He gave us some of the corn from one of the first developed breeds. It's was amazing an revolutionary. Oh, and NO nukes invoked. Just a lot of hard work crossbreeding .

Idea: use thermonuclear warheads in fusion reactors to form ridiculously large pressure waves which would kick the hydrogen into a super-compressed state, which will be hot so you can start a fusion reaction. One method of fusion they are looking into is a method to do something like this but with huge pistons - a high pressure and temperature is generated, before the pistons are shoved in increasing the pressure by a LOT and setting off the fusion reaction.

@trolleriffic

9 ай бұрын

This sounds like the "Classic Super" H-bomb concept which was ultimately abandoned in favour of the Teller-Ulam staged radiation implosion design. The short answer is that it doesn't work because the region within the hydrogen which has been compressed and heated to extreme temperatures ends up radiating energy away too quickly to be able to sustain a fusion reaction.

When you mentioned Edward Teller I thought for sure you would have mentioned the x-ray laser from the Reagan Star Wars era. If you could focus the x rays of a nuke explosion they could take out the enemy warhead. If you had it's exact track and could focus the x-rays from a nuke. They did experiments. Turns out you can't. Or, that this was a very, very, very silly expensive folly.

Carl Sagan had "billions and billions" of problems with that plan. Lol.

@j.jasonwentworth723

4 жыл бұрын

From what I read about that incident, Sagan didn't accidentally reveal the existence of that "nuke the Moon" study program. He did it quite deliberately, because at the time his Curriculum Vitae was thin and he was seeking a researcher position (he was very young and just starting out in his scientific career), and his work on that study was one of the few things he could list as having done. It turned out that even the name of the study was classified, and his DOD boss took him into a room and told him that if he ever pulled something like that again, a prison cell would be his home for a long time afterward.

@e1123581321345589144

4 жыл бұрын

yeah, he totally ruined the pronunciation

@Rutherford_Inchworm_III

4 жыл бұрын

Sagan had an imagination as wide as the cosmos but 99% of his lifetime opinions on nuclear explosions were later proven worthless. He hyped Nuclear Winter so hard and so long that he was still alive when it was disproven by his fellow scientists; he didn't care. He wanted no nuclear power (so more coal), no nukes in space (so no trip to Mars). The Anti-Nuke movement had already glommed onto it and he wasn't going to pass up that kind of fame. I like Sagan just fine for what he did do, but the man was about the least objective commentator on the subject anybody could ask for. Now, when we DO go to Mars with a nuclear engine, I hope his fans realize it had absolutely nothing to do with Dr. Cosmos.

@mining1574

4 жыл бұрын

@@Rutherford_Inchworm_III i am 99.9% (with a repeating bar over the last 9) sure there are no serious plans currently to go to mars using nuclear engines

@Demonslayer20111

4 жыл бұрын

@@mining1574 well you'd be wrong. Because that is something being looked into, as it would cut the transit time down a lot

Wow so Karl Pilkington wasn't talking absolute bollocks about a manhole cover placed on a nuclear bomb 😅

@veramae4098

2 жыл бұрын

An urgent question Was it a chocolate covered manhole?

I've got number 11. Package Thieves. Call me Captain Overkill .

Freeman Dyson is a genius. I love his mind!

And there's the annoying thing that Mars doesn't have a magnetosphere so the gases would just get blown off by solar winds.

@khanch.6807

4 жыл бұрын

Artificial magnetosphere can be created with and array of magnetic artificial satellites. Thou few solar farms are required to power the array.

@imarchello

4 жыл бұрын

on a timescale of millions of years. So not an issue for human timescales.

@rdizzy1

4 жыл бұрын

Even without a magnetosphere it would take hundreds of thousands to millions of years for the planet to lose the artificially created atmosphere. By the time it even starts to thin out slightly, humans will be moved on from mars, by far.

@MushVPeets

4 жыл бұрын

Even little Luna would retain a breathable atmosphere for something like a thousand years, if memory serves - and Mars is much larger and experiences less solar wind due to being further away. Mars would EVENTUALLY lose any liberated or generated atmosphere, yes, but by then we would have plenty of time to replenish it provided we survive that long.

@WildBluntHickok

4 жыл бұрын

Wait is that the reason why? I always thought it was just that Mars had too low gravity to hold an earth-like atmosphere.

Next time on KSP: terraforming Duna by crashing asteroids into it!

@Iron-Jupiter

4 жыл бұрын

Erpoggio that’s going to be ksp3

One demonstration of the power of a blast, was the Cannikin test in Alaska. A 4.7MT warhead for a Sprint ABM was tested underground, at the bottom of a 1 MILE deep shaft in solid rock. The blast lifted the site 25 FEET up, and permanently raised the shoreline 2 miles away by 5 feet.

@trolleriffic

10 ай бұрын

The W71 warhead used in that test was also notable for having a solid gold tamper as this made it far more efficient at producing x-rays for its intended use to destroy incoming nuclear warheads in space.

To Light a cigarret with a nuclear bomb is the most badass thing ever

Maybe use nukes to steer comets into mars... Water, CO2, CO, CH4, a little more mass from dust etc.

@conorm2524

3 жыл бұрын

@temporarysanity Chill out.

Scott Manley for nuking asteroids to hit mars!

@dexter9313

4 жыл бұрын

Let's deorbit Phobos and Deimos !

@kirkc9643

4 жыл бұрын

Aren't comets mostly water? Surely they would be a better option

@AstralS7orm

4 жыл бұрын

@@kirkc9643 Depends on the comet. Frozen CO2 should be relatively available too.

@dexter9313

4 жыл бұрын

@@kirkc9643 Also comets have way more orbital energy so they are harder to meet and deflect than "normal" asteroids.

@Cythil

4 жыл бұрын

@@dexter9313 Though if you have time you just need to nudge them towards planet. So I would look at both asteroids and comets for the plan. Far better then just throwing nukes are the problem and hope for the best. Lets use a scalpel and not a sledgehammer to solve this problem. ;)

nother gem in the series! Old (by internet spacetime), but Gold! You nail so many subtle side effects, and in some cases benefits, and the research and economics that comes out of these is fascinating... Where is a good place to go looking for this data and dig around material that's just been declassified or is about to...? This would be an interesting area of research essentially meta-analysing data that was previously inaccessible but can have important implications for future civil and commercial applications.

My take on this “We need more POWER Scotty”

Codydon Reeder (Cody's Lab) did some tests with high explosives, and found the manhole cover just may have become an explosively formed projectile, and could have survived into space.

@bamascubaman

4 жыл бұрын

Wouldn't that have required some means of concentrating the steel plate to form the projectile?

@Baigle1

4 жыл бұрын

@@bamascubaman its a piece of cast iron (assuming it was a "manhole cover"), whatever happened, with those forces, it probably didn't hold its shape for very long. the parts that were thinner probably allowed it to fracture pretty quickly. it could have been a malfunction of the film-based high speed cameras, in older film camera videos there are plenty of points where the footage skips. if the shockwave traveling through the ground at around 6km/s reached the camera at about the time the cover was lifted off it could have caused the film camera to skip leading to a much higher velocity estimation when going frame by frame. obviously conjecture, but unless there was another camera with a wider view that happens to be declassified at some point, it will always be claimed to have made it to space in one piece. i did not read the report.

@bogdanbogdanoff5164

4 жыл бұрын

@@Baigle1 It wasn't based on footage but on mathematical operation from one of the physicists, not exactly accurate

@AnimeSunglasses

4 жыл бұрын

@@Baigle1 Was it actually cast iron? If it was literally armor plate, then it's not.

@Baigle1

4 жыл бұрын

@@AnimeSunglasses I keep hearing manhole cover in the stories, those are usually made out of cast iron which is a high carbon steel that is very strong but not flexible and it tends to shatter or fracture like the ar500 level 3+ plates when stressed.

God: Thou shall not refine deuterium and tritium. Moses: Uh, what are those? God: Okay, this is going to be a problem then... God: Thou shalt not have any strange gods before Me.

@ErnestGWilsonII

4 жыл бұрын

14 The heavens receded like a scroll being rolled up, and every mountain and island was removed from its place. 15 Then the kings of the earth, the princes, the generals, the rich, the mighty, and everyone else, both slave and free, hid in caves and among the rocks of the mountains.

@Grimpy970

4 жыл бұрын

@@ErnestGWilsonII sounds like an ancient description of a mushroom cloud

@ErnestGWilsonII

4 жыл бұрын

@@Grimpy970 as a person of science I cannot say for sure if there is a heaven but I can tell you if nuclear weapons are used there will definitely be a hell.

@slycooper1001

4 жыл бұрын

and a very wise man once said those who forget the past are doomed to repeat it i forgot their name but not their words.

@johncnorris

4 жыл бұрын

@@slycooper1001 - George Santayana "Those who cannot remember the past are condemned to repeat it."

5:55 You can see this effect yourself in games like Kerbal Space Program if you have ridiculous propulsion bugs like the stack separator launcher or Danny's "RCS Sling" (which you happened to cameo in when the physics_significance=1 on the RCS thrusters was discovered) where the Kerbonaut, or any other payload, would instantly incinerate, provided you don't go *so* fast that Unity doesn't even calculate atmospheric drag and heating.

I watched the footage of the space tests, and it's one of the most beautiful nuclear explosions I have seen, plus the aftereffects were very beautiful.

you can probs heat your home w/ one for about 0.3 seconds, to a few thousand °C

@Axodus

4 жыл бұрын

Warm and toasty.

@mikestringfellow7999

4 жыл бұрын

You’d be warm for the rest of your life

@martindevans

4 жыл бұрын

Averaged out across the year the temperature would be just right!

@HansPeter-qg2vc

4 жыл бұрын

*million °C

@lucifer6966

4 жыл бұрын

Nuclear weapons get much hotter than even a few million K. Up to 2 billion K, or up to 500 times hotter than the sun. This is achieved in a fraction of a second, but the energy is rediculous.

I don't have any nuclear weapons but IF I did I'd probably be taken a lot more seriously.

@fsmoura

4 жыл бұрын

I'm taking you more seriously already just in case ( o.o)

@twocvbloke

4 жыл бұрын

Or you'd be invaded by the US, which could be a little painful... :P

@luckystriker7489

4 жыл бұрын

14 people took you seriously after that comment

@frankfedison5203

4 жыл бұрын

"I suppose I could part with one and still be feared." - Prof Hubert Farnsworth

@brenthollady

4 жыл бұрын

Are you North Korean?

Lighting a cigar or cigarette with a nuclear explosion. I feel like this is something Clint Eastwood would do on a daily basis.

Greatest real estate sales pitch “come see our lake, it’s only slightly radioactive!”

Quote of the Day: "If you have nuclear warheads, please don't use them." - Scott Manley

@j.jasonwentworth723

4 жыл бұрын

One or more nuclear weapons might save our lives one day, if an asteroid is discovered to be on an Earth impact trajectory (say, a few solar orbits--for the asteroid--prior to the asteroid/Earth "meeting"), and we find it *after* the time window in which other, slower deflection methods (such as a gravity tractor ion drive spacecraft, or a solar sail "tug") would be effective. Unlike the popular mental picture of blowing up such an asteroid, it's more likely that a nuclear weapon would be detonated an appropriate distance above a selected place on the asteroid, vaporizing some of the surface material, which would recoil from the asteroid, imparting a thrust to the body. Nuclear weapons, like guns and knives, are neither evil nor good; like any weapon, they have applications that can save lives as well as take them. It all depends on what they are used for.

@carbon1255

4 жыл бұрын

@@j.jasonwentworth723 Huh? they did save our lives, they prevented the "cold war" from being a hot one.

Hi Scott. The ‘Nuke Mars’ idea has been around since the 70’s, maybe earlier. I recall watching the British Interplanetary Society propose this on the BBC, most likely on the Sky at Night, when I was a kid.

@raven4k998

Жыл бұрын

launch a space ship into space with a nuclear bomb is that possible?

I'm old enough to get the joke and laugh out loud about Sagan having billions and billions of problems with that idea. Manley, you're endlessly fun!

I love how this video has the xkcd "What If?" book in the background. I'm not sure that a more appropriate book could exist for the topic of this video.

If you want to melt the ice cap on Mars, divert a 3 km asteroid... with an Orion drive.

@a4h426

4 жыл бұрын

a 3km wide asteroid would do a heck of a lot more than just melt the ice caps, 400m wide would be more than enough for that purpose

@korenn9381

4 жыл бұрын

@@a4h426 But if you pick an asteroid that's mostly ice, you're actually adding gasses to the atmosphere at the same time.

@jugganaut33

4 жыл бұрын

Korenn Halley’s comet? Good old 5.5km of ice. *RUBS HANDS READY FOR 2061*

@korenn9381

4 жыл бұрын

@Ordinary Sessel The amount of energy required to send our excess co2 to mars would generate more co2 than you're getting rid of.

good thing you told me not to use nuclear weapons...I was already one foot out the door with mine in tow when you said that. disaster averted.

Entire "Nuclear" Playlist excellent. You've covered a lot of the hard parts ... but the only powerplants are more incidentally described. Thorium options, breeders, etc - discussing 'from the power side' would really complete this! In other "Crazy things to do with nuclear ... waste" was "send it to space" and yet ... Elon's getting to reliability and scale levels that sort of take this out of "Bogglingly silly" to ... "Well, we've done crazier things actually."

Lighting a cig from nuclear blast is like a cancer speedrun

"If you have nuclear weapons, please don't try any of these." And also please turn yourself in to the authorities.

@p100sch5

4 жыл бұрын

I don't think that the US government wants to admit any wrong doing with these things, so no they wont turn themselves in to themselves.

@MarioMonte13

4 жыл бұрын

I forget which city it is, but there's some city in the US that issues a $500 fine for detonating a nuclear device in city limits. I'll post an update when I find it. UPDATE: Chico, California has a $500 fine for detonating nukes within city limits.

@SimonBuchanNz

4 жыл бұрын

@@MarioMonte13 that actually makes me want to figure out how to get that fine (and *only* that fine)

@johnfrancisdoe1563

4 жыл бұрын

Simon Buchan False confession with convincing details?

@MarioMonte13

4 жыл бұрын

@@SimonBuchanNz make a device with an explosive yield of 1 stick of dynamite.

"Hands on experimenters"

@davidb6576

4 жыл бұрын

"tail", but it was quite a story...

@USWaterRockets

4 жыл бұрын

I have no idea why this came across as "tale". I must have had a baud rate mismatch between my brain and my thumbs. Good catch.

"Billions and Billions of problems." I see what you did there..

Star Trek: Enterprise actually featured a concept in one of its episodes that used a planetary beam fired from the surface of Mars that can reach out to any comet or asteroid in the entire solar system (hell, it can reach Earth as the episode demonstrated) and use it to deorbit the target and crash a comet filled with ice into the atmosphere of Mars and use it to add pressure to the atmosphere. This was their first step towards terraforming a whole planet.

The most crazy thing you can use nuclear weapons for is destroying a city.

@krazed0451

4 жыл бұрын

Right in the feels :-(

@breastmilkgaming

4 жыл бұрын

atleast we got anime

@MouseGoat

4 жыл бұрын

@@breastmilkgaming Still working on if that's a good or bad development.

@miscbits6399

4 жыл бұрын

@@MouseGoat unfortunately at the time they were used, the alternative options tended towards "much MUCH worse", with death counts projected into the millions if a land-based street-by-street battle was to go ahead. Remember the Tokyo firestorm killed 100,000 people overnight without a nuke in sight and Japanese High Command didn't flinch (they didn't flinch about Hiroshima either until they realised a day later that it was ONE bomb that did the damage) War is a terrible thing and trying to second-guess events afterwards isn't overly helpful. Dropping a nuke on an uninhabited spot where the Japanese could see it is highly unlikely to have convinced the High Command that they should "stop, now" and as it was it still took some decisive action with the Japanese power structure to get a surrender after Nagasaki - there were _still_ crazies at the controls who wanted to "keep on fighting, never surrender, go down in glory" and take everyone around them along for the ride.

@nolanwestrich2602

4 жыл бұрын

@G Guest From what I hear, the reasons for surrender actually involved the possibility of the soviets invading, and Japan would rather surrender to the US. Nukes apparently had no weight in the decision.

Sadly not digging due to the leftover isotopes. The idea of easily making lakes and channels was too beautiful to be true:(

@abadenoughdude300

4 жыл бұрын

Yeah, someone didn't think this through. Or maybe they thought fallout affects only the enemy?

@Treviisolion

4 жыл бұрын

Our understanding of radiation and radiation fallout was pretty shaky for the first half of the 20th century. People used to think it was a great thing and that everyone could use more of it in their lives as it had been shown to take care of cancer, help power green glow in the dark paint (thus why everyone thinks uranium glows green when it’s actually a normal silvery metal that most people couldn’t identify as being different from most other metals except for its unusually high density which is higher than tungsten, the densest metal we use for most non-weapon things). It was probably the sixties and seventies that we started to really understand the dangers radiation can pose to human health and how much radiation is left and how long it takes to fully dissipate after a blast (and it varies. Hiroshima is below normal background radiation levels today, while without human intervention, Chernobyl will be radioactive for millions of years).

@TheArklyte

4 жыл бұрын

@@Treviisolion not 70's even. 1986. That was a wake up call that rings to this day. And without it and experience payed in blood we have gotten then, we might have faced something even worse by today.

@PyroNicampt

4 жыл бұрын

@@Treviisolion Wasn't uranium glass the initial source of the radioactive green glow trope?

@Treviisolion

4 жыл бұрын

Pyro Nicampt I had not heard of these, but I would not be surprised if it contributed, especially as most watches used radium, though I believe the public at that time never learned much distinction between radium and uranium, or thought they behaved the same way as they were both radioactive.

Great stuff! Loved the Carl Sagan "billions & billions" reference!

@JiveDadson

3 жыл бұрын

Sagan claimed he never said "billions and billions".

I was an Officer of the Crown, employed by the Parliament and the Government of the Commonwealth of Australia, attached to the Australian Department of Defence and embedded in the Australian Military (at this particular moment in time, the Australian Regular Army) as a Special Placement Officer, specialising in Military Planning. One day whilst at work I happened to see (in an Adult Comic Book) an Advert for a Six Pack of Thermonuclear Hand Grenades (including Suggestions for their possible use). I photocopied the Advert and placing it on a Specialised Weapons File, sent it on a General Distribution throughout the Military Headquarters. If only I’d been an Agent for that Company and Thermonuclear Hand Grenades had been an actual thing, I could have sold so many, both for Serious Weapons Testing and for April Fool / Prankster Gags. As far as I’m aware that Advert is still probably On File Somewhere.

Considering the resident in the White House, I'm not sure posting this video is such a good idea...

8:00 YET! There is a lot to say here. I am switching from telecommunications engineering to plasma confinement device controls engineering. This is a fun rabbit hole to fall down. Omega Tau has good podcasts on it, and there is a freely available 2012 IAEA textbook called "fusion physics". Those two sources cover most relevant questions to fusion as it exists today.

@ossiedunstan4419

4 жыл бұрын

you will never get stable plasma field in your research you are missing the main ingredient and going down the wrong path. The STARS ARE NOT FUSION BASED , FUSION IS A BYE PRODUCT OF STARS . That`s why every fusion reactor on the planet has never even had a stable field for more then seconds , costs more power to keep running than have produced altogether. The fusion research is failing is because of what i call the hawking effect , scientists in this field continue down hawking`s path that the universe must work as you believe , yet the universe continues to give the bird to hawking based non scientific research of which FUSION without matter state changes will always fail. 3 experimental fusion reactors not one has produced even enough power to pay for one firing. Have wasting resources and power on your blind journey to failure.Don`t feel alone though cause china, russia , and great britian are wasting their time.

@willis936

4 жыл бұрын

Ossie Dunstan I’m sorry but you should at least spell check before making a convincing argument. You should also at least try to make a convincing argument while you’re at it. If you’re unable to understand the problem and the physics enough to do that, then the only thing you’re doing is spinning your wheels in front of an audience that isn’t interested. Furthermore you seem unhinged. Come back to reality and put the effort in if you want to have an actual conversation.

@Acklon

4 жыл бұрын

@@ossiedunstan4419 Nuclear reactions and bombs had plenty of failed attempts before we got it right... Failure is the best teacher. If we gave up after a couple failed attempts, there would be much less in the world for us to marvel at.

@drtidrow

4 жыл бұрын

One of the best summaries of the problems of magnetic confinement fusion reactors is this: it's like trying to squeeze jello with your fingers.

@GeneralBrae

4 жыл бұрын

@@willis936 This is one of those times I want to reply to the original reply but bloody hell, where do you even start deconstructing that drivel.

I would be willing to bet the core geometry was a floating hollow pit. Probably the last of this series of core. A lot of times Teller made fizzles or in this case with the core not effected by surrounding detonation to reach critical mass no matter how roughly it was handled in transit. You can just picture how this detonation occured on a single ignition source. As the wave front of the detonation reached the suspended hollow pit the wave front timing though the seeming vacuum around the pit was large enough distance to blend the arrival time on one side of the cavity around the pit so that while it never reached the pit exactly as a wave front perfectly spherical it pushed in the side of the hollow pit a nanosecond before the compression reached the far side of the pit. A nanosecond is quite a bit of time in this detonation front so the calculation was it would smear out the compression wave. But the calculation hadn't been carried through to the inside of the hollow pit which almost reached the center simultaneously. Almost. Sort of like Ivy Mike, what do you mean tritium is generated during the detonation, ya'll kinna make that much in the time available.

Ok Scott, good idea, I'll keep my arsenal in storage. Cheers!

This kind of subject seems the perfect compliment to your technical humor way of explaining things, thanks for another fun video!

Use them as a door stop? :D

@Psycorde

4 жыл бұрын

Nuclear door bell?

@Treviisolion

4 жыл бұрын

The moment it tries to close, blow it up?

@DrBovdin

4 жыл бұрын

Maybe apocrifical, but I have a vague memory of hearing of researchers out there in the Nevada desert using solid gold clumps as doorstops since they were far less expensive by weight than the nuclear material and not considered too likely to be stolen in the context... How true this actually is will probably be forever obscured in the mists of history since it seems mostly to be a hearsay anecdote. Cheers :)

@Treviisolion

4 жыл бұрын

Erik Hedlund I’d expect not, because it’s still gold and if it’s being used as a doorstop that means nobody’s likely to notice if it went missing, and even if it’s less valuable than the uranium and other radioactive metals, it’s a lot easier to get money for without having it traced back to you, especially if they’re more worried about who could steal their nuclear weapon than who stole the overpriced door stop. Also even if it’s relatively inexpensive compared to the project as a whole, they’d still have to get the gold for some reason and then decide to use it as a doorstopper. While I can’t think of any reason it’d be impossible (weirder things have happened before) definitely seems implausible. Interesting story though.

@otterylexa4499

4 жыл бұрын

@@DrBovdin I believe it's in Feynman's book.

A water reservoir, that is radioactive. Great!

*Eats corn* _"Mr. Stark...I don't feel so good..."_

The biggest issue with nuking mars which isn't touched on often is that mars lacks a magnetic field so even if you did make the Martian atmosphere thicker the sun would slowly blast it of.

@nathanaelvetters2684

4 жыл бұрын

I hear that a lot. It's a very slow process and at some point we could use a massive magnet at the L1 Lagrange point to deflect solar wind.

@stallfighter

4 жыл бұрын

@@kukuc96 just borrow some magnetite ore from Kursk Magnetic Anomaly

@bogdanbogdanoff5164

4 жыл бұрын

@@stallfighter You could get it to space with a hydrogen bomb

One of my high school teachers in Winnipeg suggested using airburst nukes for snow removal after a big winter storm ... the two biggest problems would have been fall out and flooding

for those of you who missed the joke about the "hands-on experimentalists" in the intro, what he's referencing is the nuclear physicist louis slotin, who was one of the first americans to die of ARS. he caused a criticality accident by manipulating a plutonium core with a SCREWDRIVER. the picture at 0:51 is a recreation of what slotin was doing when the screwdriver slipped. look up the "demon core" if this interests you.

In the late 90's I was tasked with moving some " Material " as a Technician with the military. At that time the joke was " if things go badly don't bother running " rather " smoke it if you got it " because the " material " would lethally dose everything in sight, or rather everything within the range of your vision which you wouldn't enjoy much longer. Ahhh...fun times!

I believe Edwin Teller also proposed digging a canal with nuclear weapons from the Mediterranean Sea to the Qattara Depression Project to create an artificial inland sea in Egypt. Naturally the Egyptians at that time weren't too keen on the idea of using nukes, but the canal and project itself is very interesting. Making the canal big enough to become tidal would solve most of the 'lake' salting up over time. There's a Wikipedia page on it.

The craziest thang you can do with a nuclear weapon is BUILD ONE. At one time there are about 60,000. We are truly an insane species.

@ravener96

4 жыл бұрын

why? nukes are awesome. as shown in this video we have lots of great uses, how else are we going to dig our enormus kilometer wide canals through the sahara? in all seriousness nukes are like fire, applied to a problem correctly it can be safe and uniquely capable.

@larrybeckham6652

4 жыл бұрын

@@ravener96 You so unsane.

@ravener96

4 жыл бұрын

@@larrybeckham6652 not sure which part you are referring to, the joke or the nuanced stance

@MarioMonte13

4 жыл бұрын

@@larrybeckham6652 REEEEEEEEEEEE someone has a nuanced opinion!

@larrybeckham6652

4 жыл бұрын

There no nance at Ground Zero.

One they didn't mention was using nuclear weapons to prospect asteroids. Explode a nuclear weapon on an asteroid then using a spectrograph measure the spectra from the explosion, subtract the materials used in the bomb and you have the makeup of the asteroid. Don't remember where I read that but it was in some scifi novel I read a while back.

Thanks for the great suggestions, I never knew what to do with mine.

"Orion Drive" Oh, he got his license?

Exploding one on your own planet sounds like the craziest thing you can ever do.

Love how your pronunciation of "Explorer" sounds like " Exploder"... Fly safe, Scott!

I got a real bang out of that, thanks. Orion brought back some fond memories, but sadly not practical ones....

Great video Scott. Although I think it would be crazy not to consider nuclear powered rockets for use in interplanetary space. Science progresses when people think outside the box and even though these schemes to harness nuclear energy were impractical they were interesting to contemplate.

The Orion drive does work. It was documented in Space 1999.

@bernarrcoletta7419

4 жыл бұрын

CanCrusher Damn! You beat me to it. Lol

@nmopzzz

4 жыл бұрын

There has also been documented books about other implementations of it which agree with the limitations discussed here. Read the book "Live Free or Die" by John Ringo.

@bernarrcoletta7419

4 жыл бұрын

@@nmopzzz Boy that book sounds familiar. I'll have to check my library.

@orreymodo5860

4 жыл бұрын

Also Footfall by Larry Niven and Jerry Pournelle, They launched one out of Seattle

@Scott Manley - I love watching your videos. Thanks!

You could make scrambled eggs with the blast of a nuclear bomb. There is no chance Gordon Ramsay will say they are raw