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23:36
What is Infrared Radiation & Electromagnetic Spectrum? - [4]
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4:39
Işık Nedir?
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10:21
Red Light Therapy Benefits - Does it Really Work?
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4:49
GCSE Physics - Microwaves and Infrared #66
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12:05
The origin of Electromagnetic waves, and why they behave as they do
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10:09
IS THIS THE BEST BRAWLER EVER?!
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4:19
What is Infrared?
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17:55