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SANTA CLAUS: AN ENGINEER'S PERSPECTIVE

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Old 12 December 2008, 03:09 PM
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davegtt
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Default SANTA CLAUS: AN ENGINEER'S PERSPECTIVE

There are approximately two billion children persons under 18) in the world.
However, since Santa does not visit children of Muslim, Hindu, Jewish or
Buddhist (except maybe in Japan) religions, this reduces the workload for
Christmas night to 15% of the total, or 378 million (according to the
Population Reference Bureau). At an average census) rate of 3.5 children per
household, that comes to 108 million homes, presuming that there is at least
one good child in each.

Santa has about 31 hours of Christmas to work with, thanks to the
different time zones and the rotation of the earth, assuming he travels east
to west (which seems logical). This works out to 967.7 visits per second.
This is to say that for each Christian household with a good child, Santa
has around 1/1000th of a second to park the sleigh, hop out, jump down the
chimney, fill the stockings, distribute the remaining presents under the
tree, eat whatever snacks have been left for him, get back up the chimney,
jump into the sleigh and get on to the next house. Assuming that each of
these 108 million stops is evenly distributed around the earth (which, of
course, we know to be false, but will accept for the purposes of our
calculations), we are now talking about 0.78 miles per household; a total
trip of 75.5 million miles, not counting bathroom stops or breaks. This
means Santa's sleigh is moving at 650 miles per second--3,000 times the
speed of sound. For purposes of comparison, the fastest man-made vehicle,
the Ulysses space probe, moves at a poky 27.4 miles per second, and a
conventional reindeer can run (at best) 15 miles per hour.

The payload of the sleigh adds another interesting element. Assuming that
each child gets nothing more than a medium sized Lego set (two pounds), the
sleigh is carrying over 500 thousand tons, not counting Santa himself. On
land, a conventional reindeer can pull no more than 300 pounds. Even
granting that the "flying" reindeer could pull ten times the normal amount,
the job can't be done with eight or even nine of them-Santa would need
360,000 of them. This increases the payload, not counting the weight of the
sleigh, another 54,000 tons, or roughly seven times the weight of the Queen
Elizabeth (the ship, not the monarch).

600,000 tons travelling at 650 miles per second creates enormous air
resistance-this would heat up the reindeer in the same fashion as a
spacecraft re-entering the earth's atmosphere. The lead pair of reindeer
would absorb 14.3 quintillion joules of energy per second each. In short,
they would burst into flames almost instantaneously, exposing the reindeer
behind them and creating deafening sonic booms in their wake. The entire
reindeer team would be vaporised within 4.26 thousandths of a second, or
right about the time Santa reached the fifth house on his trip.

Not that it matters, however, since Santa, as a result of accelerating from
a dead stop to 650 mps. in .001 seconds, would be subjected to acceleration
forces of 17,500 g's. A 250 pound Santa (which seems ludicrously slim) would
be pinned to the back of the sleigh by 4,315,015 pounds of force, instantly
crushing his bones and organs and reducing him to a quivering blob of pink
goo.

Therefore, if Santa did exist, he's dead now.

Merry Christmas
Old 12 December 2008, 03:11 PM
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bibicoz
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Old 12 December 2008, 03:42 PM
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stilover
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Santa's what???????
Old 12 December 2008, 04:07 PM
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pauld37
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Originally Posted by stilover
Santa's what???????

Don't worry, he's not really dead ........................................








































............he never existed!
Old 12 December 2008, 04:09 PM
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austinwrx
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fantastic
Old 12 December 2008, 05:41 PM
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Miniman
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It was correct up to the point where the reindeer evaporate and Santa turns inside out. Of course this does not happen because Santa is magic and clever in equal amounts and as my children know it needs no more explanation other than "because he's magic and clever" and that defeats any engineering or science :-)
Old 12 December 2008, 05:47 PM
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stistussy
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if he turned into pink goo they could make sti badges out of him.
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