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Polygraph Machine


This is a machine that is used to detect lies. Although there is opposition by some who claim that the polygraph is unreliable, the machine is used by quite a number of countries (states) as a way to solve crimes.

The word polygraph comes from the prefix "poly" which means many, and the word "graph" which means picture. The reason the machine is named that way is that it records many physiological changes at the same time. Among others, the changes in the physiological processes include sweating, blood pressure and heartbeat.



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Mesin Poligraf

Poligraf merupakan mesin yang digunakan untuk mengesan dusta (pembohongan). Walaupun terdapat pembangkangan terhadap keberkesanan mesin ini, ia masih digunakan oleh banyak negara (kerajaan) dalam proses menyelesaikan kes-kes jenayah.
   
N
ama poligraf berasal dari dua perkataan - poli yang bermaksud banyak dan graf yang bermaksud gambar. Mesin ini merekodkan banyak perubahan dalam proses-proses fisiologi termasuk pengeluhan, tekanan darah dan denyutan jantung.


 
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