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In order for us to see something, it either needs to emit light directly (like the sun or a lightbulb filament or firefly) or else have photons of light bounce off of it and into our eyes. But how do...
Let's be honest: a lot of us sit inside...all day. Whether it's for work or to binge on the newest TV series, we simply aren't outside very often. But, what would happen if you...
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