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Season 2012
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2012x12
How do you add a USB device if you've run out of ports?
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2012x19
How do Voyager 1 and 2 transmit messages from far away?
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2012x31
Why doesn’t the vacuum of space suck away Earth’s atmosphere?
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2012x32
Why is there a small hole on the top of spray can lids?
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2012x36
How can the grass on a golf course green be so perfect?
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