View Single Post
Old 03-27-2018, 05:18 PM   #8 (permalink)
freebeard
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,704
Thanks: 7,778
Thanked 8,586 Times in 7,070 Posts
This is sorta interesting. Using a windmill to charge the battery is a losing proposition, but adding drag to power the light directly might be a wash.

Now I'm wondering about anti-deer whistles.


https://jr-international.fr/repeller...m_english.html
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"We're deeply sorry." -- Pfizer
  Reply With Quote