Originally Posted by un-nefer
Saw this on discovery years ago:
Only the first min is on topic - the gravity train stuff after it is wayyyyy ot
EDIT: Just on the possibility side of things, can someone good at maths compute this for me
The distance between New York and Beijing is approx 7,000 miles.
Max speed "tube transport" can travel = 4000mph
Approx weight of "tube transport" = 600kg (assuming similar weight to an F1 carbon fiber race car)
Max positive Gs an average person can withstand* = 3G (28 m/s²) for 10sec.
Max negative Gs an average person can withstand* = 2G (−19 m/s²) for 10sec.
So using those parameters above, and not going above 3G for longer than 10 seconds during acceleration, how long would it take the "tube transport" to accelerate from 0mph to 4000mph?
Also, using those parameters above, and not going below -2G for longer than 10 seconds during deceleration, how long would it take the "tube transport" to decelerate from 4000mph to 0mph?
While it may be theoretically possible for the capsule to reach 4000mph and travel between New York and Beijing in 45min, I am curious as to whther it is possible once you factor in human ability to withstand certain Gs before health risks set in.
If someone good at maths can do the above calculations, it would be good to see just how long it would really take to travel between New York and Beijing and keep the humans inside the "tube transport" alive and unhurt
* some people may be able to withstand upto 5G before losing consciousness or -3G before redout, but that does not make it safe for public use. +/- 2G is about the most an average person can withstand repeatedly.