# Thread: How fast (I know this is kinda physics) can i go w/out dying

1. How fast can a human being travel without dying... or is this not biology?

2.

3. Originally Posted by nn0535
How fast can a human being travel without dying... or is this not biology?
Not really biology. In any case, in theory there is no limit (except that of the limiting condition of the speed of light in a vacuum). What are the other conditions you might consider in such a situation?

4. The velocity is not the limit, the limit would be in the acceleration. I think the human skull can withstand, for a short period, up to 100 G'S of pressure.

Way back when people were afraid of the steam train because they thought traveling faster than 30mph would kill them.

5. Originally Posted by Tenacity
The velocity is not the limit, the limit would be in the acceleration. I think the human skull can withstand, for a short period, up to 100 G'S of pressure.

Way back when people were afraid of the steam train because they thought traveling faster than 30mph would kill them.
Your position relative to the direction of acceleration is also important, this is why astronauts have to be perpendicular to the direction of the shuttle at launch. Otherwise your blood can pool and clot. The biggest danger to humans in actual high speed travel is the vibrations, space shuttles have to be heavily insulated on the inside to protect the astronauts from being shook to death.

http://www.medicine.mcgill.ca/mnmsmi/7_4.htm

You can look at a pdf there on the dangers of space travel, some sections talk about the dangers of acceleration.

6. With or without the aid of technology? I may be wrong here, but i think the pilots of fighter planes use pressurised suits to help them with the high levels of G force during manoeuvres.

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