On Tue, 11 Dec 2018 17:39:17 -0000, Max Demian wrote:

On 11/12/2018 17:23, Bruce Farquhar wrote:
On Tue, 11 Dec 2018 16:56:12 -0000, Bill Wright
wrote:
On 09/12/2018 16:40, Bruce Farquhar wrote:

A thermocouple produces enough to power a spacecraft?!? Or just for
some small electronics?

On Sat, 08 Dec 2018 21:04:59 -0000, Brian Gaff
wrote:

I'm sure you know this but the Voyager spacecraft are using
thermocouples
using the heat from decaying plutonium for power all the way out in the
cosmos. it may be reducing now but its been one heck of a long time.
Brian

He didn't say to power the spacecraft he said 'for power'.

So it moves by magic then?

Very few spacecraft are electrically powered.

Whatever they're powered by should be able to give off some electricity, like a petrol car does. You don't have to fill the battery do you?