What is a lie detector and what are its functions?

Answer A lie detector, commonly known as a polygraphy, tests your physiological reaction to a series of questions, asked by a trained polygraph examiner. The measurements on the polygraph machine are used... Read More »

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What are some of the functions of the functions of the departament of homeland secutity?

How to Install a Smoke Detector or Carbon Monoxide Detector?

It's an overused saying - better safe than sorry. Most fire deaths occur in homes lacking smoke detectors.[1] To protect your loved ones, it is imperative that you install smoke and carbon monoxide... Read More »

What is a lie detector?

A lie detector is scientifically known as a polygraph. It is a machine that measures people's physical responses to questions, to determine if they are telling the truth.MeasurementsA person is con... Read More »

What is a gas detector used for?

Natural gas detectors are used to indicate the presence of the possibility of a natural gas leak in or near your home. Though there is a "rotten egg" smell usually associated with a natural gas lea... Read More »