4 ms·
He didn’t say they could. But tracks built today can be used forever, because wheel-on-rail technology has a hard limit at Mach 0.5 and we’ll never have faster
by ebikelaw 9y ago
He didn’t say they could. But tracks built today can be used forever, because wheel-on-rail technology has a hard limit at Mach 0.5 and we’ll never have faster trains than we have today.