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Homeby Witness Moecki
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RE: There is more to light than the visible spectrum. [What is Infrared light ?]

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wafrica (66)in #steemstem • 7 years ago

Dear friend, you do not appear to be following @wafrica. Follow @wafrica to get a valuable upvote on your quality post!

7 years ago in #steemstem by wafrica (66)
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    steepup (66)
     7 years ago 

    😁.kk

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