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The Physics of Santa

Roland Piquepaille writes "If you don't believe that Santa Claus can deliver presents to millions of homes in a single night, Larry Silverberg, professor of mechanical and aerospace engineering at North Carolina State University (NCSU), explains that Santa's society of elves has an understanding of physics and engineering that exceeds our own. In fact, Santa Claus and his crew really can deliver presents in one night because of their advanced knowledge of electromagnetic waves, the space/time continuum, nanotechnology, genetic engineering and computer science. For example, he doesn't carry presents. He uses a nano-toymaker to fabricate toys grown atom by atom inside the children's homes. Very entertaining reading... Here is a link to additional details and pictures of Santa and his elves flying over New Zealand."

3 of 172 comments (clear)

  1. Roland the Plogger, cashing in on Xmas by Animats · · Score: 0, Redundant

    Roland the Plogger even tries to cash in on Xmas. How tacky.

  2. Hey Mr. Professor, Santa does not exist by locksmith101 · · Score: 0, Redundant

    hey, hate to break it to ya - but Santa does not exist (and if he does exist he should be prosecuted for molesting little girls and boys - why do parents let their kids sit on grown weird fake beared people?)

  3. A blast from the past by laing · · Score: 0, Redundant

    IS THERE A SANTA CLAUS?

    As a result of an overwhelming lack of requests, and with research help
    from that renown scientific journal SPY magazine (January, 1990) - I am
    pleased to present the annual scientific inquiry into Santa Claus.

      1) No known species of reindeer can fly. BUT there are 300,000
      species of living organisms yet to be classified, and while most of
      these are insects and germs, this does not COMPLETELY rule out flying
      reindeer which only Santa has ever seen.

      2) There are 2 billion children (persons under 18) in the world. BUT
      since Santa doesn't (appear) to handle the Muslim, Hindu, Jewish and
      Buddhist cihldren, that reduces the workload to to 15% of the total -
      378 million according to Population Reference Bureau. At an average
      (census) rate of 3.5 children per household, that's 91.8 million
      homes. One presumes there's at least one good child in each.

      3) Santa has 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 seemes logical). This works out to 822.6 visits
      per second. This is to say that for each Christian household with good
      children, Santa has 1/1000th of a second to park, hop out of the
      sleigh, jump down the chimney, fill the stockings, distribute the
      remaining presents under the tree, eat whatever snacks have been left,
      get back up the chimney, get back into the sleigh and move on to the
      next house. Assuming that each of these 91.8 million stops are evenly
      distributed around the earth (which, of course, we know to be false but
      for the purposes of our calculations we will accept), we are now
      talking about...78 miles per household, a total trip of 75-1/2 million
      miles, not counting stops to do what most of us must do at least once
      every 31 hours, plus feeding and etc.

      This means that 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 on earth, the Ulysses space probe, moves at a poky 27.4
      miles per second - a conventional reindeer can run, tops, 15 miles per
      hour.

      4) The payload on the sleigh adds another interesting element.
      Assuming that each child gets nothing more than a medium-sized lego set
      (2 pounds), the sleigh is carrying 321,300 tons, not counting Santa,
      who is invariably described as overweight. On land, conventional
      reindeer can pull no more than 300 pounds. Even granting that "flying
      reindeer" (see point #1) could pull TEN TIMES the normal amount, we
      cannot do the job with eight, or even nine. We need 214,200 reindeer.
      This increases the payload - not even counting the weight of the sleigh
      - to 353,430 tons. Again, for comparison - this is four times the
      weight of the Queen Elizabeth.

      5) 353,000 tons travelling at 650 miles per second creates enourmous
      air resistance - this will heat the reindeer up in the same fashion as
      spacecrafts re-entering the earth's atmosphere. The lead pair of
      reindeer will absorb 14.3 QUINTILLION joules of energy. Per second.
      Each. In short, they will burst into flame almost instantaneously,
      exposing the reindeer behind them, and create deafening sonic booms in
      their wake. The entire reindeer team will be vaporized within 4.26
      thousandths of a second. Santa, meanwhile, will be subjected to
      centrifugal forces 17,500.06 times greater than gravity. A 250-pound
      Santa (which seems ludicrously slim) would be pinned to the back of his
      sleigh by 4,315,015 pounds of force.

      IN CONCLUSION - If Santa ever DID deliver presents on Christmas Eve,
      he's dead now.