Dr Bill:

When I was a kid, we had a lister bag that we filled with water and suspended in front of the air intake grille on our car. It was made of very tightly woven canvas, and just wept water slowly through the pores. The air rushing through the grille evaporated the water and cooled the contents of the bag quite a bit. Down to around 45 or so, which is pretty darned cold on a 90 degree day. I've always assumed that Lister was either the brand name or the inventor.

Here in the Denver area the temp difference would probably be even higher than it was in humid Virginia.

TdE


TEd