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Old 29th December 2008, 12:10 AM   #121
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Thats Fantastic
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Old 29th December 2008, 12:45 AM   #122
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Quote:
Originally Posted by guru_nikhil View Post
Thats Fantastic
Beauty is in the eye of the beholder...
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Old 1st January 2009, 09:17 PM   #123
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nice post thanks
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Old 17th January 2009, 10:34 AM   #124
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thanksssssssss
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Old 21st January 2009, 05:36 PM   #125
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Thanks Buddy
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Old 23rd January 2009, 02:53 PM   #126
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hey can i use a multimeter instead of the analog meter shown...? i have already built it but it doesnot work..
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Old 23rd January 2009, 03:35 PM   #127
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The circuit is just a simple ohm-meter. Use a multimeter set to volts or mA as its display.
A multimeter has a better ohm-meter. Then you don't need this simple circuit.
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Old 28th January 2009, 01:06 PM   #128
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should i arrange disply to this simple detector
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Old 29th January 2009, 10:00 AM   #129
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curious ako...pwede ba gumamit ng sensor sa simple lie detector?...tnx
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Old 29th January 2009, 11:53 AM   #130
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i think if u arrange colour display through cell display
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Old 8th February 2009, 07:54 AM   #131
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please tell me what's if aperson is more static charged person.
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Old 8th February 2009, 02:24 PM   #132
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Originally Posted by medsol View Post
please tell me what's if aperson is more static charged person.
A person is not static charged. But if the air is dry, the person is insulated from ground and combs his very dry hair or removes a very dry sweater then he can become static charged until he touches something that is grounded.

I had some shoes with synthetic (plastic) soles. At work the carpet was synthetic (plastic). My shoes and the carpet were very good insulators and in winter the air was very dry. When I shuffled my shoes on the carpet as I walked I developed a very high static voltage and I zapped anybody who came near me. A long spark jumped from my finger and the telephone system would reset. I got leather soled shoes and the static stopped.
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Old 10th February 2009, 08:57 PM   #133
Default Simple lie dectector

I got a project on this and we are to write a 2 to 3 pages of report explaining How does this relate in the theory of physics.
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Old 11th February 2009, 01:25 AM   #134
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Originally Posted by wagamama View Post
I got a project on this and we are to write a 2 to 3 pages of report explaining How does this relate in the theory of physics.
We talk about electronic circuits here, not physics.

The lie detector circuit is a simple ohm-meter. Some people (not everybody) sweat when they say a lie. The sweat reduces their skin's resistance and the ohm-meter shows it.
Then add 2 more pages of blah, blah, blah etc.

Look at Lie Detector in Google. There are many other things to sense plus a lot of experience reading them to guess that a person is saying a lie.
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Old 22nd February 2009, 11:36 PM   #135
Default Parts in the Lie Detector

How does each piece contribute to the Lie Detector? Please write in detail.
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