If Santa really delivered presents on Christmas Eve, he’d need to fly over a thousand times faster than the world’s faster jet fighter to visit about 240 million homes. Unfortunately, racing through the air at those blistering speeds would vaporize the reindeer, as the heat up the way a spacecraft does when it reenters the atmosphere. Meanwhile, a tremendous force tens of thousands of times stronger than gravity would pin Santa to the sleigh and smash him to jelly.

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What If Santa Really Delivered Presents In One Night?