Thread: Machines
View Single Post
Old 06-08-2017, 03:15 PM   #202
xoxoxoBruce
The future is unwritten
 
Join Date: Oct 2002
Posts: 71,105
Or maybe the driven blades that move the intake air are variable.
__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump.
xoxoxoBruce is offline   Reply With Quote