Future of Drivetrains, No Gears, No Chain.

[LandoftheGiants]

Radiation naturally implies large 'radiators'. The International Space Station manages heat using internal water loops, external ammonia loops, and massive exterior radiators. And when pumps fail they have to be replaced. Also when electronic memory fails, it needs replacing too. What's the cost to lift one ton into near earth orbit? 3 million on modern reusable rockets, $10 million to $25 million per ton using a dedicated small rocket or legacy system. Of course that 3 million tag is for a major lift, a small "fix it" lift would be an order of magnitude higher. Now why go to all that expense when you can simply build them on earth beside a river? Where dedicated staff are on hand to resolve problems. The whole space data center thing is just more Elon Hype I'd say, designed to keep the share price high. Like the rehashed Mars base concept.

 

[PCeBiker]

Actually light can be both particle and electromagnetic wave.
This is quite a complex area of physics

Yeah I remember that from physics class

A photon is a partical when it's flying alone, but when it's flying with friends it's more of a wave event.