At 06:11 PM 3/17/99 -0700, you wrote: >D. Vanhorn said >> >> But chips don't do "wind chill"... >> >You think that a metal trunk, doesn't cool off with WIND CHILL??? Yeah,but it is a different effect. The fact that the wind doesn't allow warm air to build up around the trunk allows is to cool faster. The effect is MUCH more pronounced,I would think,when water is involved,because then not only do you have convection,but you also have evaporation at the same time,and the heat of vaporization of water is pretty substantial. So,my guess is that if the wind chill factor is 10 degrees (below the actual air temp) for things involving evaporation,it is probably only about 1.5 degress below the air temp for just a warm piece of metal(these aren't actual numbers,just a qualitative guess). In addition, a PIC doesn't have all that much surface area,unless you add a heat sink. This will alter the effect,too. > >Perhaps you never turned your car radiator into the wind, and found it >impossible to start, because of "Wind Chill".... Well,with the radiator,you have ALOT more surface area. > >chips don't do wind chill.... Sheeesh [G] How did the expression "xxx doesn't do xxx" get into the common vocabulary,anyway? e.g. "Lets DO lunch." > > GREY > Sean | | Sean Breheny | Amateur Radio Callsign: KA3YXM | Electrical Engineering Student \--------------=---------------- Save lives, please look at http://www.all.org Personal page: http://www.people.cornell.edu/pages/shb7 mailto:shb7@cornell.edu ICQ #: 3329174