Quote:
Originally Posted by freebeard
Both are less than 5000mph, though. Right?
The obvious solution is a monorail that you balance upside down on. Since none of it is, as Vman455 points out, real.
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I don't think the mechanics or the physics are impossible. Achieving silly gear ratios is easy. There's a guy on youtube that invented the worlds most geared down gearbox. I forget the ratio, but a cordless drill wouldn't turn it a full rotation in something like billions of years.
Perhaps the hard part would be creating bearings that can withstand rotating at whatever is required to travel at ~4000 MPH with no air to cool them.
If I understand correctly, inverted in a tube you could experience 1 moon G if you traveled ~8,000 MPH.
Seems there's an awkward transition speed at which you float weightless, unable to steer or otherwise maneuver.