Will the ‘Free Man’ Inflatable Bubble Protect the Real Man?
But it’s hard to say for sure, because NASA’s data is based on experimental evidence. And on top of that, everyone is different, there are different permissions. Body orientation during acceleration is also a factor. People are most patient with an acceleration in an orientation called “eyeballs in.” This is the position of an astronaut to launch a rocket, lie on its back and look up, like speeding to push the eyeballs into the skull. However, if Guy gets to the side of his rib, he can probably only hold about 10 to15 g’s.
Now we will learn how you can protect a fallen person in real life. Suppose something falls on a building and is the same speed as Guy did before impact (about 17.5 m / s). If you want the person to end up on the ground with a speed of zero, there are two things you can change that can make a significant difference. (Remember, the purpose is to have an acceleration that is small enough in size not to injure the person. It may be about 10 g instead of 25, even if that is still broken.)
First, you can fix it so that the person hits something soft and stops instead of coming out. Acceleration depends on the change in velocity (vector). This is defined as from a speed of 17.5 m / s down at one of 10 m / s up a 27.5 m / s change, because the direction is caused. However, if the person just stops and doesn’t bounce, it can only make a 17.5 m / s change in speed. There is little change in speed, there is little acceleration — which means a minimum g-force. That the collision could survive.
The second thing that needs to be changed is time. If you increase the time the person stops, you decrease their speed. I’m sure you’ve ridden a car moving at a speed of 17.5 m / s, which is 39 mph. If you stop, it probably won’t cause you any damage. That’s because of braking a car at a time interval of about 10 seconds-so there’s little acceleration even if you have the same speed change as Guy.
In real life, you can increase stopping time with something like a stunt airbag. These are large inflatable structures that are collapsed on impact and used to film action scenes in movies. The airbag in your car is based on the same principle to protect you – o safer—In a collapse. By stopping a moving body over multiple distances, airbags increase impact time. which reduces acceleration. The same difference in airbags changes the effect to prevent the person from coming back. (Which, as I explained in the previous example, is bad.) Of course, an airbag won’t work for the scene. Free Man-You have to put it down before it falls and figure out where Guy is going.
That’s it, later: the inflatable cushion ring around Guy looks cool and makes for a ridiculous bouncing scene. But because of his acceleration of 25 g, that landing could still be harmful.
Unless Guy isn’t really that real. In that case, he was just fine.
More WIRED Stories