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Science is cool. If you don't think so, it's because you're dumb and don't understand science. In this thread we share all of the awesome things we can do...with SCIENCE!
Sulphur Hexafluoride is a gas six times more dense than air. This means that it will sink when released in air. So what happens when you fill a tank full of sulphur hexafluoride? In this video, we see a boat made of tin foil floating in an invisible lake:
This video was so cool to me that I made a thread to show it off. But I want to see more awesome scientific discoveries. WE ARE MEN OF SCIENCE, SO LET'S DO SOME SCIENTIFIC SHIT.
EDIT: To explain a bit further, sound travels through Sulphur Hexafluoride slower, so it makes your voice sound really low. Just like helium, except helium is less dense than air, and sound travels through it faster.
In fact, I cant wait for Horizon to return. For those who don't know, it is a BBC documentary series on anything and everything. Exceptional design, not dumbing down anything. Really essential TV for nerds.
There are some better examples of the show which is about an hour long. I highly recommend people to watch them and actively search for more. It covers every subject and is so great.
Nuclear bombs scare me, and the idea of using them/seeing the results of them being used is even scarier, but I have to admit that watching one explode is incredible.
Nuclear bombs scare me, and the idea of using them/seeing the results of them being used is even scarier, but I have to admit that watching one explode is incredible.
Nuclear bombs scare me, and the idea of using them/seeing the results of them being used is even scarier, but I have to admit that watching one explode is incredible.
Blast effects are usually measured by the amount of overpressure, the pressure in excess of the normal atmospheric value, in pounds per square inch (psi).
After 10 seconds, when the fireball of a 1-megaton nuclear weapon has attained its maximum size (5,700 feet across), the shock front is some 3 miles farther ahead. At 50 seconds after the explosion, when the fireball is no longer visible, the blast wave has traveled about 12 miles. It is then traveling at about 784 miles per hour, which is slightly faster than the speed of sound at sea level. Peak overpressure Maximum Wind Speed
50 psi 934 mph
20 psi 502 mph
10 psi 294 mph
5 psi 163 mph
2 psi 70 mph
As a general guide, city areas are completely destroyed by overpressures of 5 psi, with heavy damage extending out at least to the 3 psi contour.
These many different effects make it difficult to provide a simple rule of thumb for assessing the magnitude of injury produced by different blast intensities. A general guide is given below: Overpressure Physical Effects
20 psi Heavily built concrete buildings are severely damaged or demolished.
10 psi Reinforced concrete buildings are severely damaged or demolished.
Most people are killed.
5 psi Most buildings collapse.
Injuries are universal, fatalities are widespread.
3 psi Residential structures collapse.
Serious injuries are common, fatalities may occur.
1 psi Window glass shatters
Light injuries from fragments occur.
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In fact, I cant wait for Horizon to return. For those who don't know, it is a BBC documentary series on anything and everything. Exceptional design, not dumbing down anything. Really essential TV for nerds.
There are some better examples of the show which is about an hour long. I highly recommend people to watch them and actively search for more. It covers every subject and is so great.
edit: tossrock I hate you so much
I made a TD for iphone and windows phone!
I AM FUCKING OUT OF HERE
VROOOOOOOOOOOOOOOOOM
Edit: floating boat one.
Inertia is a property of matter
deep down I know it is only jealousy
this is the science thread, not The Art thread
Because the new Mythbusters was tonight and it was pretty cool
PSN ID : DetectiveOlivaw | TWITTER | STEAM ID | NEVER FORGET
http://www.youtube.com/watch?v=WrCWLpRc1yM
oh fuck I missed it
I think it reruns in fifteen minutes, though
I have a question about this one: does thermite burn so fast and so hot that they don't need to worry about the grass catching fire?
relevant in multiple ways
FOOT SWEATERS
Your image doesn't work.
Nuclear bombs scare me, and the idea of using them/seeing the results of them being used is even scarier, but I have to admit that watching one explode is incredible.
and science warned us not to set off any cobalt bombs in the atmosphere
FOOT SWEATERS
Odd it works fine for me. What're you seeing?
Nothing. Link gives a 403.
http://www.youtube.com/watch?v=wcmmLvAYqkI
FOOT SWEATERS
FOOT SWEATERS
Small excerpt:
784 miles an hour.
Edit: Adam's voice.
I guess nuclear explosions are also fucking frightening.
oh god
i've watched it 5 times already
this is wonderful
http://www.youtube.com/watch?v=f2XQ97XHjVw
Origin ID: Discgolfer27
Untappd ID: Discgolfer1981