هل يمكنك القفز من محطة الفضاء الدولية

most skydivers jump off plane flying 3.8 kilometers above the ground but imagine jumping off something even higher like the International Space Station unless you have super suit like Tony Stark it's not gonna end well but let's pretend Ironman lends you one okay ready three two one jump wait what that's right you won't fall straight down in fact it'll take you at least two and half years before you reach the surface so what's going on height isn't the main reason your fall takes so long in fact if you fell like normal skydiver it would only take you about 2 hours but the thing is you don't fall straight down you fall into orbit the reason is speed you see the ISS might be called the station but it's hardly stationary it's actually moving 12 times faster than jet fighter if you shot anything at that speed on earth by the time it was about to hit the ground it would miss in the same way the ISS isn't floating in space it's falling towards Earth and missing and when you jump off the ISS you're initially moving at the same speed so you end up in orbit - at least for while now even though it's so high up the ISS is pushing through very thin atmosphere so that friction against the atmosphere slows it down so the station fires engines to maintain speed and keep from crashing into the earth but sadly your super suit doesn't come with engines strapped to your feet this has two consequences first it means you can't maneuver and have to hope that any of those 13,000 chunks of space debris don't impale you second without rockets to maintain your speed it'll slow you down and spiral toward Earth but it won't be quick the Chinese space station geumgang one for example took about two years to fall out of orbit on the ISS you're higher up so you'll take roughly two and half years but once you strike the atmosphere your long wait is over and it's go time as Yuri enter you have one goal slow down you're travelling at hypersonic speeds so if you deploy parachute now it'll shred to pieces and that's not the only falling through the atmosphere at such breakneck speeds generates at least eight G's of force that's eight times the gravity you feel at sea level and if you're falling feet first that'll push the blood away from your brain and toward your feet so you'll probably pass out unless you're one of those fighter pilots who trained withstand up to 5 G's now if you don't pass out you may worry about the freezing temperatures up here but it turns out your suits more likely to melt than freeze you know how you could warm your hands by rubbing them together now imagine your super suit rubbing against air molecules and the atmosphere at least six times the speed of sound you'll heat up to about 1,650 degrees Celsius hot enough to melt iron in fact the heat is so intense it strips electrons from their atoms forming pink plasma around you that will ultimately destroy your suit if that's not enough of problem the drag will rip off your limbs but thankfully Tony Stark has your back and somehow your super suit holds with you intact at 41 kilometers up you've now reached the world record for highest sky dive in Alan Eustace wore pressurized spacesuit as he rode balloon up to this height he broke the sound barrier on his way down before deploying his parachute and landed about 15 minutes after the drop but you'll be falling much faster than Eustace about three times the speed of sound so in reality you're not going to slow down enough to safely deploy your chute that's where Ironman can help us one last by one kilometer up you've reached the territory of ordinary skydivers who don't need fancy suits to survive at this point your parachute can do what it does best and it's finally time to land softly whew what ride what's sort of daring feat would you want us to try next let us know in the comments below and thanks for watching