Mr. Dazzle wrote: ↑Wed Feb 17, 2021 7:47 pmGoogle "ionic wind".
I did that and it came up asking me if I wanted a quote from Anglian Windows!
It does ring a bell though, from when we had to make wind speed measuring devices (never sure how to spell anenenemonitomors) in an MEng lab task.
Some used whirly blades. We did a fancy hot wire one and one group decided to do it using, I guess but had no idea at the time, ionic wind...that failed.
I reckon the guy (must've been a guy as the only girl on the course was in our group) who thought it up is probably like Elon Musk now, only not so boastful of his wealth & achievements.