Quote:
Originally Posted by obertojerky
Glass.
Glass has natural properties that make it colder than the air on both sides of it. therefore, it will not conduct heat very well and doesnot show up on themal inaging devices. and is cheaper than A/C. there is a little more to it than this, but ive covered the basics
|
Didn't Mythbusters do a segment on that? They overcame a household alarm with a large pane of glass.
Here it is.
Quote:
Thermal sensors can't be defeated: busted. You can defeat a thermal motion alarm with
... cooling yourself with a fire extinguisher: busted
... wearing a neoprene suit: busted
... covering your body in mud: busted
... increasing the temperature of the room: busted
... a pane of glass: confirmed
|