Hank answers a SciShow viewer's most pressing question about what happens if the human body gets exposed to space. Would your head really explode?
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You guys should do an episode on the kissing bug, i believe there are 185 or 115 species and a small percent are native to the U.S. they have recently started migrating farther north though and can have some bad parasites that can kill, by congestive heart failure. You guys are a very well trusted and great channel so maybe you could spread awareness for those who dont know :)
Jesus Christ, this was the most horrible video ever on what happens in a vacuum.
SPACE is a negative 10 torr. Vacuum chambers on earth such as the one here in Houston at NASA can achieve a 7 TORR (supposedly) but still far less perfect a vacuum than space.
Your whole body would essentially disintegrate as there would be nothing left to keep you integrated. Even a balloon in a 7 TORR vacuum creates an air bubble where there was none because of vacuum pulled out every bit of free gas from the water and the balloon bursted.
We are by far more porous than a rubber balloon and we are also ¾ water so other than some of our bones and some parts of the marrow within the bone and cartilage and hair, all other aspects of our body would disintegrate into nothingness.
That's simply a physical condition that cannot be denied or mistaken as being something far weaker.
The sun light travels through how much space? It maintains all it needs to transfer heat from space to a rich and protective atmosphere. There doesn't need to be any 'transfer' to get the job done. This would all take place the moment your protection was breeched by just the smallest of things.
A thumbprint where something is supposed to be sealed breaks the seal so the design has to be unrealistically meticulous and this still does not cover what would be needed in space.
Of course then you also have the so-called Kármán line that separates atmosphere from space. No aircraft could survive going from positive pressure to a perfect vacuum and even if it could, the craft would spin in place and make it no further than the other side of the magical line.
Let's stick with the facts, folks
Well actualy you would freeze in space. Body can give away heat through radiation. But it will take about 30 seconds for effects to kick in or longer if i recall it right. Ofcourse you would'nt need to worry about it,cause by that time you would be gone,but you would freeze.
what an amazing way to go out.
the earth under your feet, everything that has ever been, so tiny.
15s later you enter eternal slumber, entering wherever your subconscious brings you.
if you think theres a heaven and hell and you think you deserve hell, you'll burn there.
if you imagine playing games forever, there you'll be. nobody to shout at you for playing too long n=and friends telling you to get a life.
What will if you get a cut in your blood is being exposed to the vacuum of space because if an astronaut was exposed to space is probably because the spacecraft crashed and they may have a cut on their body
How stupid this video is, they tested an astronaut suit in a vacuum less than the moon and it leaked and the astronaut said he could feel his saliva start to boil on his tongue and he passed out............not to mention an object in space does not need air to transfer the temperature to the object the object itself would conduct the radiation of the sun or the freezing temperature of space, this was easily demonstrated by shining a light at a thermometer in a vacuum, the thermometer itself was all the matter that was needed to conduct the heat
What a load of crap!!! If course your blood would boil. Hi watch videos on YouTube where people put their have into a chamber and start a vacuum inside. Heck, just take a vacuum cleaner and put it on your neck or stomach. And after a few seconds you can see your blood bring sucked out through your skin. iE..a big hickey. That's the blood in your body boiling and coming to the surface because there is no pressure holding it in. Or in these cases being sucked out. Boiling doesn't "technically" mean actually boil like how water boils on a stove. Boiling is when the little bubble in your blood start to get stimulated to being sucked out and separated from your actual liquid plasma (blood)
I know that this is kinda off topic but how far exactly can the human eye see i mean we can see the moon and the sun and stars and there extremely far away is it just because there bright and if that's true couldn't we see like an Infinite amount as long as it's something super bright
We can only see light that is reaching our eyes. The further something is away the darker it seems to be. So you're right, we can only see stars because they are so bright. But we can't see into infinity. Light travels at lightspeed as we know. So the light of a star that is 4 lightyears away travels 4 years to Earth. But the universe is only about 14 billion years old. So light from stars that are more than 14 billion lightyears away didn't have enough time to reach earth yet. So the distance the eye can see is limited by the big bang itself
So there you have it, all you annoying people saying that the “Leia poppins” scene in the last Jedi didn’t make since. You don’t explode or implode, but you will die shortly. You can survive 15 seconds before blacking out and she used those 15 seconds to get back to the ship before blacking out. So shut up.
SPACE THRUST DEBUNKED!!! Look :) If you are standing in a vacuum chamber, you will NOT move until you stretch out your arm against a wall. If you blow very very hard since your body is very dense, you will move because the AIR is stopping AGAINST the WALL. It creates something, a barrier against something, a physical object material you can push against. NOW! What happens if you REMOVE the WALL??? Thrust in the vacuum of space is a HOAX it is FAKE, do NOT THRUST NASA!!!
In the vacuum of space, there are no gravity and negative pressure. No way for thrust to form. A bullet works cuz there are two hard parts, gas and liquid does not fit in this category. The bullet works cuz the two hard parts HOLDS together. A thrust in the vacuum of space will work if you can physically screw the air/gas that is coming out of the rocket to the chassis of the rocket, something that we can not do. Thrust does not work in space. It has EVERY thing to say witch material is used. Recoil can ONLY happen when there are two hard material parts connected. When the exhaust leaves the rocket THEN it still hangs in a sucking vacuum and it's no logen CONNECTED to the rocket. No thrust can be created. If the rocket was spitting out something of HARD material that is connected physically to the rocket, then the push could have been made (like a minigun propulsion system). You can not glue exhaust to the rocket, there for the thrust won't work. The vacuum of space is PULLING the rocket in all directions. On the surface of the earth it is positive pressure that is pushing everything IN. So the rocket can travel and thrust in positive pressure where Newton's 3 law WORKS, but FAILS in the sucking vacuum of space.
If you stand on a skateboard and throw a bowling ball forward, that force will push you and the skateboard back. It's not because the bowling ball is hitting a wall or air. This is how thrust works in space too. The act of pushing something out one end, causes the other end to move away. Your example of something blowing air very hard out their mouth would work the same way, wall or no wall.
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