Jose wrote:

If a column air is rising, adjacent air is descending.

You don't get something for nothing.


It's not for nothing, it's from the sun. But I guess I should take some
glider lessons and learn the ins and outs of thermals.


I think we know the ins and outs of thermals quite well. Why do you
think gliders spiral around in the thermals rather than flying straight
through them?


Matt