Strange Phenomena caused by Nuclear Bombs

[@skylerdickson2939]

My grandpa remembers the flash at Castle Bravo and many of the people he knew died some years later. He was also given a very large settlement for being posted too close, which my family used to buy a huge amount of Krispy Kreme stock when it went public and thats why my family has any money whatsoever. Hes also still alive today. We got the money, and he was fine. tl;dr: My family are large shareholders of Krispy Kreme because of Castle Bravo.

[@BjarneLinetsky]

Now there is a good story! The American Way in action!!

[@darksu6947]

You looking for a boyfriend? I sure do love Krispy Kreme doughnuts 😂

[@dylangtech]

That sounds like an Abe Simpson story. I love being American sometimes...

[@terribletito11]

That’s probably the best tl;dr I’ve ever seen

[@infinidominion]

A lot of people involved in a bunch of tests also lived for normally long lifespans

[@RT-qd8yl]

This man is consistently answering the questions we've all had since we were 10, and I for one thank him for it

[@ItsJustMe0585]

For me he always answers my passing thoughts, or questions I never knew I had. And I thank him for that. :)

[@J4NOObs]

Spot on comment

[@Horseriding_edits21]

Fr and he deserves more subscribers

[@NCfrost82]

Yes

[@godfreecharlie]

People like you are desperately needed to correct and fill in the huge degradation and gap in the country's educational efforts. The Repugnikan War on education, especially science education in the rube states. Unfortunately in many states (southern entirely) science was replaced with the babble, was a resounding victory. There's so many people running around without a clue, dumber than a possum turd but put in charge of extremely sensitive stuff. Flat Earthers as air traffic controllers? Don't look up! Voters need to be kept ignorant, without the slightest inkling of local or world affairs. With accurate, credible, fact checked information the Repugnikan Ignorance Caucus won't gain access to any more voter approved seats.

[@rcrawford42]

The first written description of a mushroom cloud was by Pliny the Younger, describing the cloud over Vesuvius during the eruption that buried Pompeii. Added: The description was considered a bit of fancy or faulty memory, since he wrote the description years after. But after we entered the atomic age, someone realized what he was describing, and his whole account of the eruption earned a lot more respect.

[@Teverell]

He described it as resembling a pine tree - and didn't mean the coniferous things we tend to think of as pine trees (Scots pines, for instance or the traditional Christmas trees), but the stone pines common to Italy and Spain, which have tall trunks and the canopy high up. Just like a mushroom cloud, in fact.

[@Jesus_is_king1234]

@@Teverell Jesus loves you

[@Jesus_is_king1234]

Jesus loves you

[@bensear]

Scots pines have the majority of their canopy growth up high also , and have orange flecked bark​@Teverell

[@jamesdowell5268]

The venn diagram of somewhat nerdy people interested in tornadoes, and somewhat nerdy people interested in mushroom clouds, is a circle. This is my one stop shop channel haha, keep up the great work!

[@pellestorck3776]

Never stop being that marveling kid. :)

[@valeriyaaslanov3254]

Is it common for tornado nerds and nuclear explosion nerds to interlap? I'm both

[@Jesus_is_king1234]

Jesus loves you

[@Jesus_is_king1234]

@@valeriyaaslanov3254 Jesus loves you

[@Jesus_is_king1234]

@@pellestorck3776 Jesus loves you

[@Beepers559]

I dunno why, but despite how destructive and catastrophic A bombs and H bombs can get, there’s an eerie form of beauty in the light and viewing the mushroom clouds in footage, at least to me, but it should stay in footage forevermore

[@Tattootin]

Even crazier if we looked at the explosion from even a couple miles above it probably wouldn’t look like much? I’ve always thought that. People say UFO’s become more common in time of war and nuclear bombs. It would be like a TRILLION times harder to find one or two nuclear explosions randomly than a needle in a haystack. The humans perspective and our sense of who we think we are and what we do is much greater than it really is. We don’t have many people on this earth either. Most of the United States is legit empty. Like a HUGE PORTION. Kinda scary when it’s put into perspective…. Just tiny clumps of people scattered . And we think it’s a shoulder to shoulder problem. Nope. Opposite, and falling apart and more abandoned by the day. It’s insane.

[@orionriftclan2727]

I personally agree though for me, the beauty is that it feels almost Eldritch in nature, like this was a weapon not meant for man, a thing that even if it doesn't reach the scale of the sun, it is the human imitation and that we have brought the fire of the universe in our hands

[@3van1993]

It's kinda like fireworks but way more dangerous

[@whyhatestrangers]

For the rare and radiant maiden whom the angels named Lenore? Nameless here forevermore?

[@Jesus_is_king1234]

@@orionriftclan2727 Jesus loves you

[@Skip6235]

I’ve seen a pyrocumulonimbus cloud in real life. Last summer there was a forest fire not too far from Vancouver, Canada that caused one that could be seen from the city. It looked like an isolated storm cloud, but it moved and roiled so quickly. It was like watching a time-lapse video but real. Very spooky

[@matthew_ferguson]

I saw them out in Montana 10 or 15 years ago. Spooky is the right term. What did it for me was that it was so big and went all the way to the ground.

[@sauronthemighty3985]

the one in the picture is from hiroshima, not nagasaki

[@12pentaborane]

I think I a picture of the one at osoyooz from FL370, I think we were level with the top

[@Jesus_is_king1234]

@@matthew_ferguson Jesus loves you

[@Jesus_is_king1234]

@@sauronthemighty3985 Jesus loves you

[@Asylar343]

The word for direct opposite side of the planet is antipode. Didn’t know about auroras, but I know it's possible for a meteor impact to cause major volcanic activity at the antipode. I think Mercury has the most obvious example of this. But it's also speculated that the Siberian Traps, the massive volcanic field that caused one of the worst mass extinction even in the planets history, may have been caused by a meteor hitting at the Traps' antipode.

[@BjarneLinetsky]

I think that the Siberian Traps are the same thing as the basalt flows of the Pacific Northwest....Both are a product of crustal thinning and rifting from tectonic activity. The Vredefort Ring of South Africa is more like what you are talking about. A huge impact structure that created a lot of the mineral wealth of the region, including platinum, tin and other rare metals to concentrate.

[@terrydavis8451]

The antipodal impact theory for the Siberian Traps is my favorite theory.

[@LarkeyFactorial]

@trulymental7651 is spreading false information

[@Asylar343]

@@trulymental7651 I mean it literally isn't the antipode and cern/haarp/whatever crazy conspiracies are hilarious.

[@Peakfreud]

Thanks for that contribution, you saved me a ton of time with Google searches. 👍

[@kendrick2004]

I won't lie, my day is made brighter every time I see Swegle post, I absolutely love the fact you're branching out more into other terrains of topics!

[@TheNakedTater76]

I worked at ONL Y-12 during my early engineering days. I moved to special projects assessment and then into intel after that, but my original education was as a Nuclear Mechanical engineer. Starfish Prime was the Van Allen Belt at work. it does the same for solar events. The simultaneous trans-polar aurora happened when the charges pushed in opposite directions around the belt and collided on the the other side in a micro collision event. Hardtack Poplar - the detonation rebound is correct. Castle Bravo - The triple yield effect of the Lithium-7 deuteride impurity(Origin of the 7-Up name btw) was one of the many things that went wrong/right at the Bikini Atoll test. Those falling tendrils, are molten silica and calcites sucked up from the atoll and surrounding reef from the surface low created in almost 100% humidity. 5 MT calculated, 15 MT actual. All because someone didn't do the math on the neutron emission. Now we know isotope emission averages. which is why testing is no longer necessary. yield calculations can be done based upon purity sampling and chemistry. But word on the street is that testing starts back up in 2025 for the U.S. So, who knows?

[@crabmorgan]

sucking up sand and coral and then melting it in the atmosphere is crazy

[@Blinkerd00d]

I believe the radioactive silica fallout was what covered the Japanese fishing boat.

[@Irate_Beau]

dare i ask _why in the world_ would nuclear testing start up again?

[@TheNakedTater76]

@@Irate_Beau Dick measuring. Same as it ever was. Not to mention the treaties are about as useful as freshly-used toilet paper. NNSA has already handed down release instructions for testing units, and the Air Force is lining up untested design for verification. Opportunity knocks now that Putin pulled out of all the same comprehensive testing and development treaties, and is preparing to do the same in joint with North Korea and soon, Iran. 8k UHD Test footage and really scary realizations that taxpayer dollars went to fund the best detonation sequence perfection on a bomb that creates so very little residual fallout, that it almost looks like we could reclassify them to conventional large munitions. And we will. It still recreates the sun, but uninhabitable is a matter of financially capable infrastructure spending & recovery, not radiological contamination. Welcome to the Cold War 2.0, we're environmentally conscious now!

[@lmcg9904]

Wait we're gonna be testing again!? In a year's time?! Why? I mean I do understand why, (russia) it's always russia. But why? As u said we don't need to test anymore.

[@jjmetrejhon1743]

I really appreciate the education but also the way you speak to us - you're really good at conveying information without being condescending about it, and you're so personable. Really enjoy your videos!

[@Peakfreud]

True

[@Jesus_is_king1234]

@@Peakfreud Jesus loves you!

[@Jesus_is_king1234]

Jesus loves you!

[@jackstone8074]

I love how this channel focuses on the kind of nerdy and very creepy stuff I like such as tornadoes, nuclear bombs, sirens, etc.

[@godslaughter]

Little correction: mushroom is not a type of fungus, it is a reproductive organ that some fungi form, but not all of them do. They function like multiple-layered umbrellas with frills on the underside and let spores fall down onto the ground. But HEY, you're the weather man, I'm the biology...gal. We teach each other :) Super fascinating video btw

[@RT-qd8yl]

Man's laughter

[@sinisterace5272]

Are all mushrooms the result of fungus?

[@racer927]

And not all fungi form that mushroom shaped. I mean you have very wacky shapes like Lion's Mane, Oyster, and Hen of the Wood.

[@chunkblaster]

🤓

[@madjack1748]

no one asked, but thanks for sharing!

[@iitzfizz]

Keep the videos about nukes coming!! I've basically exhausted all the content that's about nuclear weapons testing or phenomena available on KZbin!!

[@Dudeguymansir]

Check out the St. Louis radioactive sites! Latty Ave, the airport, West Lake landfill, Weldon Spring Containment Cell, Coldwater Creek contamination. STL helped with uranium processing as well as radioactive material disposal. Pretty sure Olin/Winchester/Western cartridge helped make hypergolics just north of STL in Illinois. Nike Missile sites around St Louis and Chicago (predecessor to nuke silos). So not radioactive, but still interesting Cold War historical sites. Cheers fellow nerd 🤓

[@iitzfizz]

@@Dudeguymansir Very interesting indeed, I wish I could visit them in person, I'm in the UK here. We have a pretty cool (no pun intended) cold war bunker that I'm trying to visit soon!

[@cuddlepaws4423]

That was fascinating. As others have said, it's nice to see you having a look at other events and though they are deadly, nuclear explosions are fascinating in a macabre way to observe. I'm always fascinated by the blast wave that shoots out then returns and gets drawn up. Thank you for sharing and love from England.👍👍

[@DaveCompton5150]

I find the mushroom clouds from large non-nuclear explosions to be even more fascinating, especially volcano eruptions.

[@donaldcarey114]

As much of the heat inside the earth is due to radioactive decay (uranium, thorium, and potassium isotopes), volcanic eruptions ARE nuclear explosions.

[@Jesus_is_king1234]

Jesus loves you!

[@Conessay]

@@Jesus_is_king1234this bot is wild 💀

[@z2kk]

Loved this vid. I bought "Trinity and Beyond" like 20 years ago and watched it many times. I remember wondering about some of these things you covered (sounding rockets, guy wires). Some I had learned about over the years, but some I learned about in your video along with a few more things I hadn't noticed (bells, cherry). Good stuff mister.

[@Homecastlefoundation]

I'm a former Aldermaston scientist. I think the "cherry on top" is the fission primary which has ignited the fusion secondary with its x-rays.

[@thomasg5554]

I'm a youtube scientist. The pimple is a fast secondary mushroom cloud /RT instability which only appears when the shot is surface or very close to it. Initially the fireball will expand as a sphere; but as the soil / water surface below is less compressible than air, the overpressure buildup from the part of the fireball that expanded towards the surface will bounce back up. The upward motion of plasma could also be triggered by the hydrostatic rebound of the compressed surface then communicating this motion to the plasma, or a combination of these two explanations. In any case, this is not the primary which is completely absorbed by the secondary's fireball; this pimple always appears in multimegaton surface shots (Oak, Zuni, Tewa, Romeo, Poplar...), and it's extremely unlikely that the devices would have been all set vertical with the primary above the secondary. If the primary was the explanation, this pimple would have been visible at least in some multimegaton air shots, and they are all almost a perfect sphere.

[@tomdecuca3627]

You worked at Aldermaston the Atomic Weapons Establishment?

[@Jesus_is_king1234]

@@tomdecuca3627 Jesus loves you

[@Jesus_is_king1234]

@@thomasg5554 Jesus loves you

[@Jesus_is_king1234]

Jesus loves you!

[@Exerillo]

I've been asking myself these questions since I was obsessed with Nukes and only pictured it when I saw your first nuke video yesterday when I watched your first atomic video. And then boom! You upload this video. Thanks.

[@veo_]

Baby, honey, sweetie...you're burying the lead(s). That info graphic at 3:36 is eye-popping. I've been a weather phenomenal nerd for years and I never knew the scale was like that. Just discussing that aspect could be an entire video, But I think you left on the screen for like .75 seconds? So many other great topics just glossed over. LOL. Great content.. I really enjoy that you're branching out into other interesting atmospheric phenomena! You have a great eye for interesting tidbits but you should consider slowing your roll a bit, I feel like this could've been extended to an hour, or 5 separate videos. Anyway, keep looking up! ❤

[@John-wd5cb]

fbiopenup 😝

[@mattsena7708]

As much as I love your tornado videos, the space videos and other types of videos are absolutely amazing. This channel covers everything I've been obsessed with since I was 5 years old

[@paladin0654]

1:27 The "mushroom cloud" effect is an artifact of very large explosions, not only nukes. The distribution of energy in a nuclear detonation depends on the environment: as you said high altitude, or explosions in a vacuum don't create as much blast as surface and low altitude detonations.

[@OGAcidSunsets]

Getting the education we deserved as kids / One KZbin video at a time. Great video as always bro, keep it up

[@NicksWhipShop]

I've been watching nuclear test videos and have been fascinated by them for years. I had NO idea that they could trigger lightning.. that is absolutely wild.

[@bigbasil1908]

Volcanic eruptions often trigger lightning too

[@racer927]

@@bigbasil1908 That's more due to the clouds of ash and ejecta generating enough static charge to cause lightning. I haven't the faintest idea what causes fireball lightning.

[@bigbasil1908]

@@racer927 Yeah ball lighting is weird. I saw a peach coloured orb of light in my friends cabin years ago and he saw it too. It appeared and moved through the air 2 feet with a slight wobble and disappeared. That didn't seem anything like what I would imagine ball lightning to look like. To be it seemed to be more like some sort of spirit phenomena

[@racer927]

@@bigbasil1908 Oh whoops! I meant Fireball Lightning as in a nuclear fireball causing lightning strikes.

[@alexlubbers1589]

​@@racer927the massive EMP from a high-yield nuclear test is what triggers the lightning.

[@Nartinan]

First video I'm watching from you and I'm so glad to have discovered your channel. This level of detail is beyond any documentary I've seen on nukes before. Really stoked to binge your past videos now.

[@k8tina]

Same here. First video I've seen by this channel. Ready to watch other videos on this channel

[@twod0ves]

I'm so glad I found this channel last year. It's so refreshing to see someone on youtube doing super in-depth analysis of music, because that definitely isn't the norm. Thank you Bryan for all the work you do.

[@hebedite4865]

think you posted this on the wrong video, unless my yt comments are broken lmao

[@Cereal421]

???

[@bjornragnarsson8692]

Huh????

[@holypickle8917]

The bright blue light found by nuclear reactors is called Cherenkov radiation and it’s when charged particles travel faster than light in the medium they’re in (typically water). It’s incredibly fascinating!!

[@Tomyironmane]

Yeah, if you see Cherenkov radiation in Air... that's bad. REAL bad. That means you have particles moving better than 0.999c, if I have the speed of light in air correct... In water, the particles only have to be exceeding 0.75c or so....

[@buckhorncortez]

Not quite correct, but close. Cherenkov radiation happens when charged particles travel faster than the local speed of light. The local speed of light is the speed of light in a vacuum divided by the refractive index of air.

[@trolleriffic]

The glow around a mushroom cloud (and likely the pillar of light at Chornobyl) is caused by ionised air glow rather than Cherenkov radiation.

[@holypickle8917]

@@buckhorncortez ohh really! Thank you for informing me :)

[@DrDeuteron]

@@Tomyironmanethe electron threshold is 21 MeV (gamma around 42) in air, so that is ruled out for fission and fusion. Obv, protons and alphas are not making air Cherenkov.

[@racer927]

My initial theory for the Grable mushroom cloud's unique formation could've been that it was caused by the fact that the W9 artillery shell uses a Mk. I "Little Boy" gun barrel assembly rather than the more common and precise Mk. III and beyond implosion system but Priscilla was not only bigger yield at 37 kt but also the test of a Mk-15/39 primary stage and yet a very similar mushroom cloud was formed. It is interesting that in a declassified testing film of Upshot-Knothole, one of the points about Grable was observing how the fireball and resultant mushroom cloud behaved from a gun barrel device versus an implosion device.

[@trolleriffic]

There shouldn't be any visible difference in the mushroom clouds of a gun-type or implosion-type device. Priscilla probably looked like Grable because its combination of yield and burst altitude created a similar environment for mushroom cloud formation. Grable showed some unusual blast phenomena caused by the formation of a "precursor wave" ahead of the main incident and reflected shockwaves (and the Mach Stem that formed when they combined) and led to far greater damage to vehicles and other objects that could be thrown around by the shockwave. It was caused by the relatively low detonation altitude of Grable which subjected the desert floor around ground zero to such high temperatures that the top layer of dust and soil basically exploded, creating a shockwave that was angled much closer to the horizontal.

[@racer927]

@@trolleriffic Oh I know of the precursor wave. That was also discussed in the test film.

[@minigunner1218]

The weapon design doesn't really contribute much to how the fireball forms, as the fission/fusion reactions are over in just a couple nanoseconds. What caused Grable's mushroom cloud formation was the shockwave, as it reflected off the ground and pushed the bottom of the fireball upward. Convection forces then took over as the superheated plasma started rising rapidly, and it sucked air from underneath up through the fireball, leading to the double-mushroom shape. Some of the Operation Dominic test footage shows this happening a bit more clearly, though in those cases, it didn't lead to 2 mushroom heads as the fireballs were way larger and they were higher up in the atmosphere, which made the reflective shockwave less effective. Another clear-cut example is the Ivy Mike detonation, which was a 500kt implosion device that was detonated at a proportionally-similar height to Grable.

[@vaultsuit]

Search "fallout cloud regimes"

[@SCIFIguy64]

One of the other interesting features of an atomic blast is that it’ll give an ozone sort of smell to people near it from that ionization. If you survived a nuclear war, that smell would likely linger for a while along with increased susceptibility to sunburns from, ironically, a lack of an ozone layer.

[@RationallySkeptical]

10:18 Who'd have thought painting guide wires black would cause such an amazing effect? This is my favorite footage you showed us.

[@agibitable]

guy wires

[@SoCal780]

It is so cool to see the actual footage of these various tests and the strange phenomena that result from them. Absolutely fascinating.

[@NinjaZXRR]

Thumbs up for that Faded 80's VHS Cassette Intro.

[@isomeme]

I thought I'd accidentally played a Backrooms video. 🙂

[@f5tornado831]

That vortex at the start can even be seen in tiny mushroom clouds caused by homemade explosives. I saw it in a homemade video where they blew up an explosive in their backyard, and it formed a beautiful mushroom cloud. I wonder if they can suck things up the mushroom cloud.

[@swatl]

I just visited the Atomic Museum in Las Vegas, so this is a fascinating extra bit of knowledge. Thanks!

[@MarkEichelberger-cw6cb]

I've been fascinated by nuclear explosions forever... and you did a super job of finding video of stuff I've never seen

[@skateboardingjesus4006]

That test shot name is pronounced Gray-bil (Grable), not "Grah-bel". Youre also correct about the Castle Bravo test; those streaks are lumps of coral raining out, because they are no longer being propelled upwards by extreme convection. Some look slightly curved because their smoke trails are being sucked back in and upwards. Two small islands and a huge chunk of seabed went into making those.

[@Noubers]

Yea the yield was 2.5x the expected yield and the position of the weapon (and related test equipment, and even some personnel) did not obviously account for this. Also one of the reasons the fallout was so devastating to those down wind as much more material and way more unspent fuel was in the cloud.

[@skateboardingjesus4006]

@@Noubers The actual yield was 3 times the intended 5 megaton yield and the secondary's fuel was completely used up when the supposedly inert lithium 7 was converted to fusionable lithium deuteride early in the fusion reaction. It was the huge amount of heavily irradiated coral, Earth and seawater mixing with the daughter products from the fissioning materials that made it disgustingly dirty. The disparity between the high altitude winds and surface level winds was very poorly calculated and the reason why it became so dangerous to the islanders and servicemen downwind. It was a completely unnecessary test and showed a callous disregard for the consequences of what they were doing. The nearest personnel were in a bunker 25 miles away on Bikini Island, but yeah, a lot of test equipment intended for post shot retrieval was obliterated by the immense yield.

[@jamesdowell5268]

If you only notice the spikes for castle bravo and not other detonations, I wonder if it had anything to do with that test having a far higher yield than they expected? Just speculating, maybe it's an undesirable kind of debris/fallout that usually doesn't happen because they select yields & locations to minimize it? Or, maybe it's not common just because castle bravo is one of a small number of tests with high-quality footage that were well above 10 megatons, and the spike effect is only something that emerges in the largest yields.

[@minigunner1218]

The "cherry on top" is a phenomenon that can also be seen in some large conventional explosions. It's due to ground debris (or vaporized matter in the case of a nuke) being flung up in a cone-like pattern, with the tip of said cone initially rising faster than the shockwave. Also, another phenomenon that's almost exclusive to atmospheric detonations is the tendency for air to become opaque as it gets superheated, before it starts to glow. You can see that in some of the higher-altitude vortex rings (especially at 2:12), appearing as a thin black "smoke". It's also why nuclear blasts have a double-pulse, as the shockwave is temporarily so opaque that it blocks the light of the fireball within.

[@Deutritium93]

13:50: Those spikes around Castle Bravo's fireball are literally pulverized pieces of sand and coral from the island it was detonated on at Bikini Atoll, being ejected skyward. It managed to dig out a shallow crater some 6,500 feet across and 250 feet deep, also completely (and obviously) vaporizing the entire test island it was detonated on. Edit: Also, it just goes to show that early first-generation thermonuclear weapons were no joke with how immensely powerful they were because the only viable delivery methods were massive heavy strategic bombers, as ICBMs had still been under development at that time and could not carry them.

[@contingenceBoston]

12:50 -- antipode. Good shit, brother

[@HoosierDaddy_]

Man, I can nerd out to this channel for hours. Loving it!

[@EvilStitch]

When I first subbed to this channel I thought tornados would be the only thing you cover which is awesome as I've never seen a channel dedicated to such a topic but it's even more cool to see all the different subjects you've continued to cover to this day. Keep doing what you do! ❤👍

[@VagabondTexan]

I've never seen your channel before. Well done presentation!

[@MScotty90]

I think the spikes in the Castle Bravo cloud are smoke/condensation trails from debris being sucked upwards by the main body of the mushroom cloud. The designers miscalculated the yield of the bomb and the explosion was 2.5 times larger than expected, blasting a significant amount of the surrounding coral reef up into the atmosphere. I think anything going that speed would be burning the air around it and leave a smoke trail like a meteor, and the heat/sheer mass of the rising mushroom cloud would create a vacuum underneath it to suck those smoke trails back inwards and upwards. That's the only theory I have, initially I thought that it could be the sounding rocket trails being absorbed by the larger than expected mushroom cloud, but there just seems to be too many of them. It's tough to see much detail on video before they become super distorted since the detonation is so insanely bright.

[@thomasg5554]

Yes, debris blast by the explosion which took place on a reef, and then sucked back up. It's also quite visibe in some of the Zuni footage.

[@jasonw.2232]

You can also see a great example of the blue glow of ionized air in footage of the Castle Romeo test. It is especially apparent in the first couple of seconds, projecting upward (conically) before the intense light of the fireball overwhelms it.

[@johanssonb]

A little correction: If I remember correctly, the auroras from the Starfish Prime test did not appear in the antipodes, but at the other end of the corresponding line of the Earth's magnetic field (look for a representation thereof if you don't know what I mean)

[@higherperspectivephotography]

Very concise information. The skirts and bells phenomenon is quite interesting. In the available footage from the British Grapple Z shot, the whole cloud structure takes on structure like a low precipitation supecell thunderstorm (nucleocumulonimbus?), with stepped "wall cloud" lowerings and maybe very likely a large tornado at ground level. As the stem descends, well defined tight rotation is visible for a brief period.

[@___-vz7mp]

The castle bravo spikes probably are a result of the surrounding terrain. Varying thickness in vegetation, soil, rock, and hills could have acted as funnels to the blast which causes the spikes.

[@Noubers]

It was at Eniwetok atoll in the South Pacific so not much terrain to affect it. As someone else pointed out it was coral and other debris from the island and experiment infrastructure falling out of the cloud as it vaporized a huge part of the island chain.

[@mitchellelliott1650]

My all-time favourite channel. Love the retro vibes.

[@zacherade1541]

If upward convection of air creates a dust devil due to the Coriolis effect, I wonder why nuclear upward convection does not create a similar vertical vortex... Maybe because the forces are more instantaneous and not as sustained? Also the opposite side of the earth from a given point is it's Antipode.

[@trolleriffic]

I think it's because in a nuclear explosion there's a huge amount of heat dumped into a sphere of air around the bomb which then rises and pulls itself into a torus. Dust devils are caused by hot air next to the ground, presumably with variations in its temperature and the thickness of the heated layer. The very different initial conditions should explain why they behave so differently.

[@txlyons2937]

This is the only video documentary I've ever seen which explains the different phenomena observed during nuclear tests. Very interesting and informative.

[@tripplefives1402]

@13:14 Hydrogen bombs are two or more stage bombs. The first stage is a fission bomb. The small fireball on top is what remains of the fission explosion once the fusion explosion takes over. The first stage creates the heat, pressure, compression, and neutron flux needed to make fusion happen.

[@superskullmaster]

Good theory but the fact that the fission and fusion happens in less than 1/100 of a second makes that highly unlikely.

[@BjarneLinetsky]

From what i have read, the primary fission bomb provides an intense pulse of gamma/x radiation that is focused on a cake of lithium deuteride, which heats to temperatures needed for fusion.

[@superskullmaster]

@@BjarneLinetsky the construction of the bomb is not important in this case. The simple fact is that the bomb casing has not even fragmented by the time the fusion overtakes the fission. It’s like a firecracker going off at the same time as a stick of TNT. There is no way you are going to see the firecracker.

[@BjarneLinetsky]

@@superskullmaster Actually, the rate of hydrogen fusion is quite slow compared to the fusion of other elements, carbon for example. I see your point, really only the initial blast of fission gamma radiation is needed to light off the fusion reaction. My feeling is that bomb designers consider bomb components in the degenerate plasma phase to be part of the detonation engineering....

[@superskullmaster]

@@BjarneLinetsky well fusion is just slower anyway as it’s a process that takes energy to cause a chain reaction vs fission which when supercritical makes it’s own energy in a way. But yes even a typical two stage thermonuclear weapon has a slower overall thermal pulse than a pure fission weapon of the same yield which coincides with the slower fusion process.

[@vincentfalcone9218]

I know there is a test ban treaty, but it would still be really awesome if we could test a "small" kiloton range nuclear weapon somewhere isolated and film the hell out of it with modern cameras.

[@BjarneLinetsky]

The main reason for the test ban treaty is that the fission products and plutonium from the bomb are extremely radioactive and widely dispersed......In the early 1960s cesium 137, a radioactive isotope that accumulates in bones, produced by fission bombs; was found in cow's milk.......

[@bigbasil1908]

That test ban is void now, thanks to the US and its western puppets turning so hostile against Russia.

[@NetherStray]

I'm sure the simulations of nukes get more and more accurate every day. I'd rather have visual effects than fallout giving people miles downwind cancer.

[@Motta99]

The antipode would be the opposite side of something in geography, if you're curious. Great stuff!

[@hourglass2230]

I was literally watching Hotline Miami Two what the hell.

[@toxi101yt5]

THANKS SO MUCH FOR ANSWERING THESE! lol I've been wondering about these phenomena since forever

[@Shamulislam5707]

I don’t know, but I didn’t even want to report anyone and the report button just came up and I said cancel I don’t know why I just came here to do random stuff or see how many people commented

[@gavintotten2892]

I have been waiting for this video ever since my fascination with explosions began as a young child. Thank you for this.

[@ChocolateStars-ze3nm]

0:05 as soon as I saw it I said jellyfish😭

[@pittiebaby]

More like a octopus from splatoon lol

[@lynnashley6247]

This is one of the very best videos that I have seen recently that I didn't know I REALLY wanted to see! Thx.

[@eltiofresca4998]

5:27 Just a small thing: I don't think the temperature can drop below the dew point, but they can be equal, which saturates the air and makes it condense

[@jamesemond1446]

Temp always drops below dew point. That's what causes frost and morning dew.

[@eltiofresca4998]

@@jamesemond1446 u sure? Where does it state that? Genuinely curious because i read at the nws website that they can only be equal.. or maybe im misremembering

[@mcsaatana1614]

Great video! Was nice to watch it, also awesome collage of nuclear bombs detonation. Cheers from Finland!

[@aredboxnation]

69TH VIEWER LESS GOOOO

[@koolsteins]

Amazing video! I always wondered what those cloud lines that appeared before the explosion was in all the test footage I’ve seen online/school throughout my life.

[@rphnick]

Excellent video! This was a topic I didn't know I needed in my life and I never would have searched for it on my own.

[@idkthatxool749]

Super interesting, I must admit I had never looked that closely at a nuclear explosion but wow it’s chillingly beautiful, in a terrifying sort of way.

[@stratojet94]

So glad I found this channel gotta be one of my new favorites

[@AmeliusDex]

The opposite point, in this context, would be called the antipode. Awesome video, thanks for putting this up. Can't wait to see more!

[@brianpaul5667]

I recall one of the test films indicating the "cherry on top" effect being related 1st stage explosion that triggers the second stage in hydrogen bombs. They made it sounds like it was essentially a second mushroom cloud from the smaller first stage explosion pushing up through the second stage explosion due to timing differences.

[@sempertalis1230]

Thanks for explaining the spikes , I was always wondering about them. My guess had been impurities or small irregularities in the nuclear process. But as always the answer was much more simpler. Absolute astounding that the wires evaporate faster than the atomic fireball can expand!

[@TheSnugglebug81]

This just combined two fascinating interest in one video, thanks so much!

[@Pizzpott]

Thoroughly enjoyable and you answered a lot of questions I've had about these phenomenon. Also, thank you for saying 'nuclear' as opposed to the terrible and lazy 'nucular'.

[@TheMeatballMan420]

These clouds all look so unnatural, and the fact that if you were anywhere near them it would be lethal makes them very unsettling to observe. Really cool and informative videos.

[@whylifeis4]

Babe, Wake Up, Swegle Studios uploaded!

[@Thin447Line]

The "cherry on top" of the the thermonuclear "hydrogen bomb" tests may be from the first stage. These devices used a "traditional" plutonium implosion bomb like the Trinity device in order to ignite the fusion reaction of the hydrogen isotope second stage. If I'm not mistaken the big "oops" on Castle Bravo was the bomb casing material used in the second stage that was thought to be inert, actually contributed to a third fission stage being ignited inadvertently. It was supposed to be a 6 megaton test, that wound up being more like 15 megatons and miles larger blast area than was anticipated.

[@r0ckworthy]

Wow very well done video, makes me curious about seeing more videos from this channel. Thanks for the upload.

[@bryanjk]

Your charisma, voice and content are great. Love it

[@camatrusaca]

The cherry on top always baffled me, but what about the "shooting stars" inside castle bravo immediately after detonation? Any clues on that?

[@Margoth195]

this was a well-made and interesting video with a couple small things I noticed (i hesitate to say corrections as you weren't wrong but could me more accurate) 1:45 you can see the shockwave reflecting off the ground hit the fireball and start the mushroom shape. This is not convection. Convection does play a role later in the process, but these videos are not showing convection at play. 4:53 A mushroom is actually the reproductive organ of specific types of fungus (basidiomycota and Ascomycota with acceptions). Saying a mushroom is a fungus is kind of like saying a penis is a type of animal. i know this is a bit off-topic but there you go lol. thanks for the great work!

[@phdnk]

The Grable-vortex ring is produced by the reflected shock when that passes through the fireball. The reflected shock kicks the vortex ring up from the fireball/fire-dome thus splitting the fireball into two pieces: the vortex above and the remnant of the fireball below.

[@jkzero]

Great video, I enjoyed all the way to the end. A minor correction: at 07:54 you that this is a photo of the "Nagasaki bombing on Aug 9, 1945" but that is Hiroshima not Nagasaki, you can even distinguish Hiroshima Bay at the bottom of the image. At 08:25 you keep calling it "Nagasaki" while showing the picture that at his bottom says "Hiroshima, 6 Aug 1945;" however, this was not at all critical with the rest of the video or the information. A tip for a newbie making videos: you might want to try a mouth de-clicker, I suffer with those on my videos and spend time removing them because they are very distracting (and quite unpleasant) to the viewer.

[@DUKWAK]

Cool video, my guy. Subbed

[@Blunko_McSqwuntley]

Remember if you see an atomic detonation run out to your mail box and put a hair brush in it.

[@hoosierhell7456]

I know you're a tornado channel but... Your nuclear weapons content is equally interesting, def keep it up!

[@speedrat6507]

I respect the enthusiasm and im sure theres some cool physics here but i just cant watch someone be this upbeat about nuclear bombs

[@shawnknepper3442]

5:40 Fun fact: that’s the same nuclear test shot that was used In multiple episodes of SpongeBob SquarePants as a gag joke. Especially the episode “Dying for Pie”.

[@BudreauxTheKid5022]

I can’t explain the joy this video brings me

[@wingmanbomer]

This guy needs more views. From this video at least. Dig it bro. Keep it up, you'll be in the top 10 science covers or with a contract to another established sci-news show.

[@theccpisaparasite8813]

Super interesting. Love the Fender bass in the background

[@heeroyuy298]

Brilliant premise for a video

[@xX_Gravity_Xx]

I come to this channel to feel a deep sense of unease, and this man Does. Not. Disappoint. A video about asteroids and meteors could be cool too. The Angry Astronaut made a video about Apophis and it made me think of this channel.

[@Carstuff111]

Things like this, more bonus for finding this channel!

[@tomtanaka841]

Very interesting subject, although I feel uncomfortable seeing nuclear bombs go off, you tackle the subject brilliantly.

[@JasonLihani]

"A mushroom is a fun guy?" I still don't get it, Sweggo.

[@tuptup18]

It's a great day when Swegle uploads! :)

[@Demon_Pilot_GT]

awesome channel i just randomly found, great work bro all spot on.

[@CIAmrx]

You can see the ionizing of air in various widescreen cinemascope shots of Castle Romeo. Very cool.

[@kelseylomber4918]

I appreciate all the tornados from tornados number 1 fan! Love the videos!

[@HE-pu3nt]

An interesting thing, is that Lawrence Livermore have been digitising all the old film of atmospheric tests. They then use AI to reassess the yield calculations. It seems that the big US tests were more or less on water when the bombs were tested. The water seems to absorbe some of the energy. The LLNL guys think that the big tests were upto 22% bigger than originally thought.

[@JonnyGlessnerStormChasing]

I’ve been looking for a video about this for years. Finally

[@tiffanynajberg5177]

Is anyone else gonna talk about how a nuke-nado would be the apex predator of tornados?

[@DaveCompton5150]

Sharknado would beat Nukeando!

[@tiffanynajberg5177]

@@DaveCompton5150i feel like since most of the tests were over the ocean that maybe this has already happened?