About special optical effect (loop) of moving hand in front of PC screen

Subject: About special optical effect (loop) of moving hand in front of PC screen

Date: Sat Oct 16 06:41:44 1999
Posted by Max Manchinsky
Grade level: 7-9 School: Secondary School
City: St.-Petersburg State/Province: No state entered. Country: Russia
Area of science: Physics
ID: 940070504.Ph

Message:


Why, when you move your hand back and forth in front of a switched on 
computer screen, you can observe a special optical effect (such a loop)
when you can see several positions of the hand simultaneously.

Re: About special optical effect (loop) of moving hand in front of PC screen

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