Posted to uk.d-i-y,alt.home.repair
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How does a thermocouple have enough power to operate a gas valve?
"Bruce Farquhar" wrote in message
news
On Mon, 10 Dec 2018 18:48:55 -0000, Tim J wrote:
"Tim Streater" wrote in message
.. .
In article , Bruce Farquhar
wrote:
On Mon, 10 Dec 2018 09:22:20 -0000, Tim Streater
wrote:
In article , Bruce Farquhar
wrote:
On Sun, 09 Dec 2018 21:40:03 -0000, Rod Speed
wrote:
Bruce Farquhar wrote
A thermocouple produces enough to power a spacecraft?!?
It isnt a single thermocouple, it's a thermopile.
https://en.wikipedia.org/wiki/Thermopile
https://en.wikipedia.org/wiki/Nuclear_power_in_space
Or just for some small electronics?
Not small at all.
Why are these not used on earth?
Probably not that cheap, once you've made the Pu-238.
Whatever happened to those AA nuclear batteries? I assume
they worked the same.
What on earth are you talking about?
https://en.wikipedia.org/wiki/Atomic_battery
Not wanting to read the entire article, apart from space are we using any
now?
Don't think so.
And eeek! Pacemakers! Don't think I like that idea.
Might be preferable to repeated surgery to change the battery tho.
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