Chances are, you are reading these words in some room or other. Build a wall down the middle of it, and in the middle of the wall, insert a tiny shutter. Conjure up a tiny critter who can open and shut this little door at will. When a hotter-than-average air molecule careers towards it, the creature opens the shutter and lets the molecule pass to the other side of the room.
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As the US decides, so can you
Subscribe today and get a $50 Amazon gift card if you correctly predict the next US president.
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