Pressure and it's limits

The energy stored in wind is like the wind stored in drivers. 

If you get a string of it and the bit in front tries to stop for a bit, all the other bits of string like to plough into the back of the stopped bit at the front spilling it's coffee all over its lap. 

So... that's the Betz’s limit in a nutshell.

120ThingsIn20Years just found hundreds of drafts in it's outbox all scheduled to automatically publish over a decade in around 80-90 years. Stay tuned I guess?