Chris Hogg wrote:
On Sat, 22 Aug 2020 18:39:31 +0100, Max Demian
wrote:

On 22/08/2020 17:27, harry wrote:
https://www.youtube.com/watch?v=_QLEERYS5C8

Flywheels aren't the only mechanical batteries available. There are
gravity based batteries like the "accumulators" used to work the
bascules of Tower bridge.

Many years ago I read an article on flywheel-powered shunting engines.
I think it was in 'The Eagle' comic, circa 1955, estimated from where
we were living at the time.


Turning corners must be interesting if the wheel is vertical.