Recent content by kalamater

Sorry, not accusing France of anything, but I was given to understand that any tidal energy schemes result in slowing of the Earth's rotation by reducing it's rotational KE, after all the energy has to come from somewhere - if not the Earth's rotational KE then where else ? Betz law in...

Thanks also for Betz law and the link - time to go away and do a bit of thinking!

Many thanks everyone, yes some good ideas to pick over here, I'll chew on the power and pressure ideas. The hydro argument over potential I like, guess if there was no turbine in the way, the ejected water would be at a greater velocity, all (or nearly all) the PE being converted to KE. I...

Wind turbines / hydroelectric turbines - I think the same fundamental Physics applies to my question. The fluid (water or air) prior to meeting the turbine has kinetic energy, after the turbine the flow must be the same (or there would be a 'build up' of fluid) - so it has the same KE as...