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"This is your captain speaking"
When Christmas Eve comes, the presents absolutely, positively have to be there overnight. Fortunately, Santa's sleigh can really fly. But how? Just how do Santa and his eight reindeer friends (nine, counting Rudolph) get a sleigh full of toys airborne?
There's a little magic involved, but mostly Santa and his North Pole helpers just know their physics cold--specifically the four forces that regulate all flying objects, from jet planes, to Santa's sleigh, to unwanted fruitcakes on Christmas morning.
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