2 ms·
China has run at 360kmh before, but last I checked they mostly run slower. Air resistance is a killer as you go faster. So for trains 300 is usually about the
by bluGill 4mo ago
China has run at 360kmh before, but last I checked they mostly run slower.
Air resistance is a killer as you go faster. So for trains 300 is usually about the best compromise between energy use and speed. If you want to go faster a jet at altitude is going to be much faster at a better fuel efficiency. High speeds make sense for long distances.
- dcel 4mo agoThis is a project designed to last for centuries. We’re not even fossil free yet and already seeing days of negative electricity cost thanks to renewables. In 50 years the extra energy cost is going to be a rounding error. Locking ourselves into 300km/h forever to save a relatively small sum is unfathomably short sighted.