On 21/10/2020 14:43, Jethro_uk wrote:
On Wed, 21 Oct 2020 13:30:09 +0000, Tim Streater wrote:

On 21 Oct 2020 at 13:07:55 BST, The Natural Philosopher
wrote:

And tidal power is not renewable. It slows the moon down

Worse: it causes the Moon to recede from the Earth. One important thing
the Moon does is stabilise the Earth's spin axis. Once it gets too far
away, that interaction will be reduced to an extent where chaotic
gravtitaional effects from other planets (such as Jupiter) will start to
become important. Then, there is quite a non-zero likelihood that the
Earth's spin axis could tip over to horizontal, which would totally ****
up life on the planet.

I think you underestimate the ability of humans to totally not give a
**** about the future.


No way anything we do will move the moon enough to detect.

It's mass is apparently 7x10^22Kg. That's a _lot_.

Andy