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The Self Defence Blog

Archive for March 1st, 2010

Seeing in the dark outside at night is never going to be a real skill that a human can attain, unfortunately. Our eyesight is limited within the electromagnetic spectrum which we know and recognize as visible light. We can only see outwith this range by utilizing equipment that allows us to capture non-visible sources of electromagnetic radiation referred to as infrared light.

Several CCTV cameras today are able to project infrared light utilizing several LED illuminators. Any time this power is joined with CCD sensors effective at recording the infrared light spectrum, you accomplish what is refered to as nighttime vision.

In all probability, every home and every business would benefit from the protection of a panic alarm. Breaks-in are common enough, but with people living longer the chances of stroke or heart attack have risen too. If you were living alone it would be awful to be lying on the ground incapacitated for hours. Panic alarms are the solution. They can be sited in a handy location or worn around your neck.