What does instantaneously mean in physical terms

There is no such thing as Santa Claus!


At least that's what classical physics says!


1) No known species of reindeer can fly. BUT there are 300,000 species of living organisms yet to be classified, and while these are mostly insects and bacteria, that doesn't exclude flying reindeer that only Santa has seen so far.

2) There are 2 billion children (people under 18) in the world. BUT since Santa Claus (apparently) does not supply Muslims, Hindus, Jews and Buddhists, his work is reduced to about 15% of the total - 378 million children (according to the census bureau). With an average number of children of 3.5 per household, this results in 91.8 million houses. We assume that there is at least one good child in every house.

3) Santa has a 31-hour Christmas Day, due to the different time zones, when traveling from east to west (which seems logical). This results in 822.6 visits per second. Thus, Santa Claus has 1/1000 of a second time for his work for every Christian household with good children: Park, jump out of the sledge, climb down the chimney, fill the socks, distribute the remaining gifts under the Christmas tree,

eat all the leftovers of the Christmas dinner, climb up the chimney again and fly to the next house. Assuming that each of these 91.8 million stops are evenly distributed around the world (which of course, as we know, is not true, but we accept this as a basis for calculation), we now have a distance of 1.3 km from household to household, one Total distance of 120.8 million km, not counting the breaks for what each of us has to do at least once in 31 hours, plus food, etc.

4) This means that Santa's sleigh flies at 1040 km per second, i.e. 3,000 times the speed of sound. For comparison: the fastest man-made vehicle on earth, the Ulysses Space Probe, travels at a ridiculous 43.8 km per second. An ordinary reindeer can do a maximum of 15 miles per HOUR.

5) The charge on the sled adds another interesting effect. Assuming that each child does not get more than a medium-sized Lego set (about 1 kg), the sled has a weight of 378,000 tons, not counting Santa Claus, who is consistently described as overweight.


An ordinary reindeer cannot pull more than 175 kg. Even assuming that a "flying reindeer" (see point 1) can pull TEN TIMES the normal weight, one does not need eight or maybe nine reindeer for the sleigh. It takes 216,000 reindeer. This increases the weight - not even including the sled itself - to 410,400 tons. Again, for comparison: that is more than four times the weight of the Queen Elizabeth.

6) 410,400 tons at a speed of 1040 km / s creates tremendous air resistance - this heats up the reindeer, just like a spaceship that re-enters the earth's atmosphere. The front pair of reindeer has to absorb 16.6 TRILLION Joules of energy. Per second. Each. In other words, they will go up in flames practically instantly, the next pair of reindeer will be dragged into the air, and a deafening crack will be made.


The entire team of reindeer is vaporized within 5 thousandths of a second. Meanwhile, Santa Claus is subjected to an acceleration 17,500 times the acceleration of gravity. A 120 kg Santa Claus (which must be ridiculously small by the description) would be nailed to the end of his sleigh - with a force of 20.6 million Newtons.

With this we come to the conclusion:

IF Santa Claus ever brought the presents, he is dead today.