咱老百姓(真)
加入时间: 2004/10/11
文章: 5307
经验值: 3142
|
|
|
作者：咱老百姓(真) 在 罕见奇谈 发贴, 来自 http://www.hjclub.org
Santa travels around the world to deliver the gifts. Assuming he travels
east to west (which seems logical). This works out to 822.6 visits per
second. This is to say 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 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, the Ulysses space probe, moves at a poky 27.4 miles
per second - a conventional reindeer can run, tops, 15 miles per hour,
or .0042 miles per second.
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 H.M.S. Queen Elizabeth.
353,000 tons travelling at 650 miles per second creates
enormous air resistance - this will heat the reindeer up in the same
fashion as spacecraft 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 flames 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.
作者：咱老百姓(真) 在 罕见奇谈 发贴, 来自 http://www.hjclub.org |
|
|
ZT: An Engineer's Warming Christmas Story
