Can of compressed air can often set-off the motion detector on the other side of the door that lets people out. That's according to the pen-test people at defcon.
Can of compressed air can often set-off the motion detector on the other side of the door that lets people out. That's according to the pen-test people at defcon.
really? does there HAVE to be dust or something? I mean what is MOTION detection anyway? Sight? Light? based? movement of AIR? motion, but WHAT is detected?
really? does there HAVE to be dust or something? I mean what is MOTION detection anyway? Sight? Light? based? movement of AIR? motion, but WHAT is detected?
Some of them are temperature change motion. I think the myth busters used a glass sheet to defeat one.
Some of them are temperature change motion. I think the myth busters used a glass sheet to defeat one.
I wonder about air pressure. Is ambient air pressure measurable within a certain fixed area with current (recent) instrumentation technology?
I wonder about air pressure. Is ambient air pressure measurable within a certain fixed area with current (recent) instrumentation technology?
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