4 ms·
It's not a perpetual motion machine. It harnesses the differential between wind and ground to propel itself. How fast it can go depends on how much power is ava
by InclinedPlane 8y ago
It's not a perpetual motion machine. It harnesses the differential between wind and ground to propel itself. How fast it can go depends on how much power is available, how efficient it is, how aerodynamic it is, etc.