Is it possible for Santa 
to determine which children were naughty or not? How could he deliver 
so many presents in one day? It would seem that the laws of physics 
would make it impossible for Santa Claus to do what people claim he do. 
No known species of reindeer can fly. 
 
There
 are about two billion children in the world. But Santa does not deliver
 gifts to Muslim, Jewish, Hindu and Buddhist children leaving 15% of the
 total. Further calculations estimate that there are over 90 million 
homes to which Santa must deliver presents. 
Allowing
 for the rotation of the Earth, Santa has up to 31 hours of delivery 
time. Santa must make over 800 deliveries per second. 
Justin Bieber - Christmas Eve ---> sheet music
So
 for each Christian household with at least one good child, Santa has 
1/1000th of a second to land, jump down the chimney, deliver the goods, 
eat his snack and get back into his sleigh. 
Assuming the houses are evenly distributed (they are not); Santa’s total mileage will exceed 75 million miles.
  
Santa’s
 sleigh must travel 650 miles per second or roughly 3,000 times the 
speed of sound. Much faster than any known man-made vehicle. 
 
If
 every home leaves Santa a snack of one cookie and an eight ounce glass 
of milk, our portly hero would consume over 20,000,000,000 calories. 
Since one pound is equal to 3500 calories, Santa might gain 2900 tons. 
 
Assuming
 each child gets only two pounds worth of toys, the sleigh is carrying 
over 320,000 tons not counting Santa. That is a lot of weight for eight 
(or nine if Rudolph is invited) reindeer to pull. 
Assuming
 the reindeer Santa employs are ten times stronger than any know 
reindeer species the job would require more than 200,000 animals in all. 
 
The
 weight of the payload and reindeer (over 350,000 tons) traveling at 650
 miles per second creates unimaginable air resistance. This will heat 
the reindeer the same way a spaceship re-entering the earth’s 
atmosphere. The lead pair of reindeer will absorb 14 quintillion joules 
of energy per second. 
  
The huge amount of energy absorbed will create deafening sonic booms and cause the entire team to be vaporized almost instantly.
  
Santa would be subjected to centrifugal forces more than 17,500 times greater than gravity. 
 
