Hydrogen Bomb Space Testing 1958 include high speed footage Remastered

HARDTACK-Teak was an exoatmospheric high altitude nuclear weapon test performed during Operation Hardtack It was launched from Johnston Atoll on a Redstone missile . On 1 August 1958, the 3.88 Mt (16.2 PJ) shot detonated at an altitude of 76.8 km (252,000 ft; 47.7 mi).
Along with HARDTACK-Orange it was one of the two largest high-altitude nuclear explosions.
The 3.8-megaton detonation was planned to occur at an altitude of 76,000 m (250,000 ft) above a point approximately 9.7 km (6 mi) south of Johnston Island. However, due to a programming failure, it burst directly above the island at the desired altitude, making the island the effective ground zero. This brought the explosion 610 m (2,000 ft) nearer the launch site control and analysis crews than intended.
Top: A facility on Johnston Island prior to the burst.
Bottom: The facility immediately after the burst at an altitude of 76.8 km (47.7 mi).
The Teak test was originally planned to be launched from Bikini Atoll, but Lewis Strauss, chairman of the United States Atomic Energy Commission opposed the test because of fears that the flash from the nighttime detonation might blind Islanders who were living on nearby atolls. He finally agreed to approve the high-altitude test on the condition that the launch point be moved from Bikini Atoll to the more remote site at Johnston Island.
In this video,
You can see quite a lot of precious original videos in a moment.
Contains a high-speed video
Remastered Video!!

[@pschroeter1]

Wow. I've heard of nuke detonations turning night into day, but this was really striking and it went beyond daytime.

[@massey4business]

Can you imagine seeing that real time? Brighter than the sun for a few seconds! Wow!

[@ThatsNotFunnyThatsSick]

People who witnessed nuclear tests all claimed they could see the bones in their bodies due to the flash.

[@garysmith9818]

Interesting look back, it always gets me how bright it is on these films. Thanks ATC!

[@douglasskaalrud6865]

It’s amazing how fast YT is being taken over by AI. It’s been coming on for years of course, but in recent months it seems at least half of documentary clips now have AI voices. I’m already sick of it.

[@brmnplayr]

damn right.👍🏻

[@nasimwehbe8410]

Yup. I want to hear real voices, not this robotic bs.

[@hughmungus6780]

That's why they all get a thumbs down from me.

[@dylconnaway9976]

Really annoying for sure.

[@BigBadWolfdog]

Dude, whoever runs this is presumably from Brazil (check description) and their English is not brilliant (not being rude). The AI voice is okay and it helps them make good-quality videos where the information is clear. Give them some slack.

[@terratec1001]

What's with the computer voice narration?

[@MitzvosGolem1]

Operation Starfish also ..

[@swissrock1492]

Fantastic footage.

[@geonerd]

How about getting a REAL human to read the script. Or at least make the minimal EFFORT to feed the Robovoice enough phonetic guidance so it can properly pronounce all the words and abbreviations.

[@ZilogBob]

Absolutely agree.

[@dth2brny121]

Whoa. Night into literal day for several seconds.

[@claudevieaul1465]

The delivery of this voiceover easily falls in the category of "stultifyingly boring".

[@Boodster61]

Wow it literally turned night into day😮

[@joeanita8654]

The part that is classified is likely the EMP caused by the detonation.

[@brianc9642]

I was surprised that the lights stayed on.

[@SubvertTheState]

I was literally just going to ask that haha

[@normkirk65]

No wonder the first one failed. No one noticed the stuck wheel at 0:45

[@sirclarkmarz]

WD40 hadn't been invented yet

[@theschmedaparadox1018]

You didn't see a stuck wheel.

[@kevinmc4500]

Stuck for days!

[@Supersean0001]

Very interesting . . . In looking through the basic Wikipedia article, the actual EMP test bursts carried out a few years later were at a higher altitude (around 400km vs. 76km) and that MIGHT explain why there were no significant EMP effects from this detonation. Apparently the Earth's magnetic field strength affects EMP intensity, and so in a tropical environment the field strength is lower compared to that at higher latitudes. en.m.wikipedia.org/wiki/Nuclear_electromagnetic_pulse

[@seamusoreilly804]

At this altitude, there should have been a significant EMP. And, yet, the facility lights stayed on. Were these electronics hardened?

[@ImpendingJoker]

EMP is a pretty close range effect. At that altitude you wouldn't have had much effect from it but yes, they would have hardened the facility either way.

[@indyhotdog7652]

Did you notice that the real time and slo-mo videos were inverted?

[@safetychuck2]

Why didn't the EMP shut the lights off at the launch site?

[@JZsBFF]

Atmospheric dissipation, Chucky. EMP works best in a vacuum.

[@ZilogBob]

No mention of EMP effects from this...

[@dzonib1]

This was not a hydrogen bomb. This was the comodo 3000

[@adityabhosale7993]

OMG it was like new sun 😮❤

[@michaelstanich70]

i think it afected radios in the area.

[@user-wp8vy8le3y]

Why would the Chairman of the Atomic Energy Commission approve - or disprove - the test ? Surely it would be approved at a military level by someone in high command ?

[@davidwright8432]

The AEC was in charge of weapons development.

[@user-wp8vy8le3y]

@@davidwright8432 OK. But doesn't that just show that you cannot separate peaceful use of atomic energy - in nuclear power stations for consumption of electricity - from its use in atomic and thermonuclear weapons; which is why I made the reference to military involvement.

[@flyingtigerline]

Beyond belief.

[@cow_tools_]

Accidentally included a figure caption in this transcript.

[@spencereagle1118]

'Error in the programming'.....yeah, right.

[@normkirk65]

3.88 Metric tons ?? That's a tiny one !

[@user-cf1se1kk5x]

3.8 megaton…00:35

[@HailAnts]

The stupid computer voice read '3.88 MT' as "metric tons" the first time..

[@davidedickjr]

Welcome to AI. Always check output for accuracy.

[@jmanner2562]

Give me the melodramatic orchestra music any time

[@hughezzell10000]

and that was from 47 miles away

[@MySteamChannel]

Imagine if the rocket malfunctioned on the launch pad!

[@petehafner3844]

Surprised no emp effects

[@iancanuckistan2244]

There was an EMP. It disrupted all kinds of communication services. They didn't bother to mention it.

[@HailAnts]

EMP research was the primary reason for this test. Results are probably still classified..

[@christopherpardell4418]

EMP is overblown in folks imaginations. A Hiroshima size bomb would have an EMP effect for a radius of around 2 miles. A 3 megaton bomb would have potentially disruptive EMP pulse out to about 25 to 30 miles, and mostly line of sight. Meaning terrain blocks the pulse as effectively as it does radio transmissions. This blast was 45 miles up. The inverse square law means that the power of the pulse weakens rapidly. That is, whatever the effect at 1 mile out, it will be 1/16th that at 4 miles out. And 1/64 at 8 miles out. Today, most sensitive electronics are shielded from EMP simply because even very weak electromagnetic fields can play havoc with the integrated circuits that run everything. I used to have a Dodge Caravan back in 1986. It had an electronic control button to operate the rear window wiper. Whenever I drove it thru Camp Pendleton, and we passed the huge hangers for the Hovercraft, the rear window wiper and washer would come on and just keep on running without the button doing anything. I had to turn the ignition off and then on to get it to stop. And back then, whenever Air Force One flew into Southern California, garage doors all over the valley would spontaneously open. That doesn’t happen anymore. It would take a pretty strong EMP to overwhelm modern electronics. i.e.- you would have to be pretty close to the blast. Stories of EMP ‘disrupting’ things mostly stem from testing in the deserts near vegas, or ground blasts in the islands where inhabited islands were in range. ETA, The primary danger of EMP is that large transmission lines can act as antenna which can cause an overload which will cause the grid to dump power off the lines. Causing widespread blackouts or voltage spikes to equipment plugged into those lines. But a line protector like most folks plug their computers into would effectively protect your electronics from that kind of EMP effect.

[@JZsBFF]

Atmospheric dissipation.

[@WayPastCrazy2525]

​@@christopherpardell4418that was informative and thankfully not with attitude. I never heard of those effects of Air Force 1 or driving through the air base. Amazing stuff!

[@R32R38]

Now a bird refuge.

[@anarumeads5090]

Instant daylight

[@barneylinet6602]

Evidently h bombs do not show the double flash characteristic of a bombs.

[@UtilityCurve]

Other way around: H-bombs are double-flash: You need a fission detonation to produce the heat necessary for fusion (AFAIK, the temperature required for a terrestrial fusion reaction is much greater than that at the fusion core of a star, as fusion is a product of temperature AND pressure, and there is no terrestrial way to produce pressure caused by a star's mass--so you up the heat to compensate). A small portion of the fission reaction is able to be engineered to heat (and compress via the transient shock wave) the fusion fuel. (The vast majority of the fission reaction simply cannot be so harnessed because anything you use is going to be vaporized after doing its thing for a nanosecond.) This is the famous Teller-Ulam design. A pure fission reaction just happens and is done as the fission fuel is mostly scattered by the energy released by minority of mass that undergoes fission. Once the density of the fuel falls below a certain point due to thermal expansion, the opportunities for neutrons (called slow neutrons) to be absorbed by the fuel falls below a critical level (hence "critical mass") the fission basically ceases, explosion over--now it is all up to the medium (air, water, soil) to absorb the X-Ray produced, heating it and producing the blast effect that does the vet majority if the destruction. Of course, this whole sequence of effects takes place in an (effectively) instant, so one could be forgiven for thinking a large part of the fissile material actually undergoes fission. (At the center of a 10^6°C fireball, there's no way to "see" the wasted material. It is inferred from math and byproducts from the detonation. But the fact that plutonium or uranium is found, "leftover" from it, confirms that this is in fact the case.

[@user-cr5yy4te3i]

@@UtilityCurve the double flash i was referring to is the initial burst of gamma rays from the annihilation of the residual strong force in the fissile nuclei, which is degraded into lower energy radiation, followed after an appreciable interval by the thermal pulse from the fireball. As i understand it, the initial gamma burst in an H bomb is largely confined in the case in order to heat the LiDu fuel....

[@MikeHunt-rw4gf]

Algorithm.

[@JE-ti3cz]

What about the high skin cancer rates in eastern Australia ??????????

[@trolleriffic]

Bomb fallout almost certainly wouldn't head towards Eastern Australia and if it did, it doesn't cause skin cancer. It's because the ozone is still recovering from the depletion caused by CFCs. They were banned years ago but they're very long lasting chemicals and take decades to break down. Less ozone - more damaging UV light reaches the Earth's surface - more cases of skin cancer.

[@swissrock1492]

I personally do not mind the AI voice. Using AI voice overs can be a great way for content creators who are cautious about privacy or simply don’t like to hear their own voice on record.

[@ImpendingJoker]

Then maybe don't make videos or get someone else to read it.

[@erndog0110]

BFD

[@silt69]

Vau

[@markaylott1780]

With all these atomic and nuclear bomb testing in between the 50's and 80's it's no wonder the climate is now farked!

[@framusburns-hagstromiii808]

More Robo-reader AI BS..I'm out

[@winstongsd4273]

AI narrator is awful

[@TheShootist]

you really need to lose the shit text to speech.

[@Blake4625kHz]

Why the US dollar has ever been worth anything