Awesomes of the Internets

#223

How is this terrible?

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#224

Your challenge is to write crossover fanfiction combining Super Mario Bros. and Robocop. The story should use cooking crystal meth as a plot device!

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#225
#226
#227

Continuing on the topic of Mars One.

This guy (who apparently applied for the trip) talks about the notorious 68 day prediction for first fatalities to occur and how it was a misconception on the behalf of the media reporting it:

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#228

All nuclear weapons fired to date, yes, all 2053 of them.

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#229

I'm amazed by it now as I was years ago when I first saw it.

I'm a fan of nuclear technology. And weapons. Their power is just mindbogglingly.

I recommend this, for a up close experience of some of those flashes seen in the Video above: Trinity and Beyond

My favorite is still Baker:


-

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#230

I wonder why it makes a mushroom cloud with such a neat cylinder base, and not a gigantic "bubble".

#231

It does make a bubble. Just to short a timeframe to see. After that air rushes in from the sides and push all the gas generated by the bomb up like a balloon. Also that one was an underwater test. Which is kinda different. Which you might be able to tell by all the water in the air wink That gif is sped up by the way.

Here some images:

Trinity

The biggest bubble (on image):

Castle Bravo (Biggest US Fusion Bomb)

Sadly no scale ... believe me. It's gigantic.

Ivy Mike (First Fusion Bomb)

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#232

I also found those tests fascinating. Scary and with huge implications for the political landscape (plus I oppose war in almost any form), but fascinating. Interesting images Lomsor, thanks for sharing.

#233

Ah, and the difference in air pressure between the top and bottom reaches some sort of threshold at a certain point and it explodes outwards. Or I'm an idiot.

#234

At first all the gas is generated inside the bomb, or most of it. It depends on how efficient the bomb design is and how exactly it works. It then expands (Read EXPLODE) outwards, due to pressure, until it reaches roughly the same pressure as the ambient air. At that point

3 Milliseconds.


16 Milliseconds

It then just hangs there for a comparable long time ...

At that point fluid dynamics takes over ... or another part of it. The blob of gas starts to first raise . Colder air is forced trough it zylindrically arround the bottom of it. It starts to become a rotating toroadial shape.

Another Test:

Also, shock waves. The thing that actually does the most destruction of all the effects.

I know what you try to depict. The last frame in the Trinity animation seems to be a lot brighter then the rest of them. I suspect that's just due to exposure. Although there could be stuff going on inside the cloud I don't know about.

This also happens to chemical bombs too. It just isn't as profound because the pressure and heat difference isn't as high as with Atomic Devices:
PETCON ... blush

Wups ... found something: http://www.atomicarchive.com/

Gify: http://www.gizmodo.com.au/2013/01/25-of-the-deadliest-explosions-man-ever-made/

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#235

I see you're into atomic porn. stuck_out_tongue_winking_eye

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#236

Darn I got cought ...

Well .... wasn't it obvious? Or what does this look like to you?

Bang! ... ? ... ?

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#237

A shellfish manufacturing process?

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#238

Correct me if I'm wrong, but no nuclear bomb is a pure fusion device. They're just normal fission bombs doped(or boosted) with a lining of lithium, deuterium, and tritium to boost neutron production and thus yield. Its an over simplification at best but how I understand all modern weapons are made. A pure fusion bomb would have a grossly inefficient explosion and yield. The hybrid thermonuclear bombs is how you get the stupidly ridiculous megaton explosions .

#239

Pretty much. We don't have (efficient) ways to cause a thermonuclear explosion with anything else than a fission bomb. Some design, like the nightmare that would have been a completed Tzar Bomba, even have a third fission stage triggered by the fusion explosion. Whether the monstrously augmented nuclear fallout is a feature or a bug is left as an exercise to the ruler.
However, most nuke builders are not that insane and modern nukes have a relatively small fission stage, with most of the energy coming from the fusion stage.

You can cause fusion with, say, a laser, which is used to continue research on fusion bombs without having to do those pesky live tests. But using a laser to detonate a fusion bomb is apparently far out of the grasp of today's technology.

This is why there is a minimum size to nuclear bombs, as you can't have a fission bomb smaller than the critical mass (about a few kg IIRC). This is also why bomb-pumped lasers are unfeasible today, as the explosive used to trigger the fission bomb shake the targeting rods before the fission itself is triggered and can pump X-rays.
The good news is, though, that with the incredible progress that are made with antimatter mastery, we may have in the next decades the capabilities to produce and stock micrograms of the blasted stuff. One of the main applications is to trigger fusion reactions without needing the fission stage, making all those problems (including most fallout) going away. Oh, and you can also use it for nuclear fusion space propulsion if you are a boring person. But come on, who would be interested in that?

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#240

Because between death and life there is only one step (oh ! what a transition ! smiley ), there is a video of a conway's game of life pattern that is awesome !

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#241

How about some good old wave particle duality!

http://phys.org/news/2015-03-particle.html

It appears we've managed to take a photograph of light acting as both a wave and a particle(as it should). The image shows the intensity oscillating as a wave, whilst also showing the collections of discrete packets of energy(the bumps in the waves). The challenge was imaging both at the same time. It's very exciting and very cool!

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#242

I'm sure a few have already seen this at one point or another... but now see the Ted talk that goes with it smiley

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