Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: maceng2 who wrote (22433)	7/22/2008 11:23:27 PM
From: Thomas A Watson	Respond to of 36918

And then then one could create an image of a cold focal point located in the focal point with a couple of additional parabolic mirrors acting as lenses to make a Schlieren photograph. web.mit.edu But I determined the effect is real with a flat sheet of aluminum foil. My mt-pro Noncontact IR thermometer sees only an arc of 11 degrees. So if one points it at an angle at the aluminum foil it's thermal view is reflected. I could measure the temperature of my palm within 1 degree F of it's actual temp. 91F. With cold I could read 13F off of a 76F surface and the ice pack was 7F direct. This shows the cold air sucked out of a freezer as a pizza is removed. Body heat...