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nuttaphong191
Posted: Wed May 09, 2007 10:52 am
Post subject:
Thank You for information
nuttaphong191
Posted: Sat May 05, 2007 9:01 pm
Post subject: Infrared
can infrared lights(signal?) go through solids or liquids?
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Posted: Wed May 09, 2007 10:52 am Post subject: 
Posted: Sat May 05, 2007 9:01 pm Post subject: Infrared