Welcome to the Arbtalk.co.uk | Discussion Forum for Arborists.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.


The Lounge Off topic forum. Discuss anything from religion to politics. Please keep it clean.

Thank you for all your donations. The total we have raised this year for The Childrens Trust so far is 1545!

Reply
 
LinkBack Thread Tools Display Modes
Old 29-11-07   #1 (permalink)
Senior Member, Raffle Sponsor 2010
 
arbgarry's Avatar
 
Join Date: Sep 2007
Location: Maybole, Ayrshire
Posts: 112
Santa Claus: An Engineers Perspective

Santa Claus: An Engineers Perspective

I. 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 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 house hold, that comes to 108 million homes, presuming that there is at least one good child in each.

II. 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.

III. 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).

IV. 600,000 tons traveling 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 vaporized 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 accellerating from a dead stop to 650 m.p.s. in .001 seconds, would be subjected to centrifugal 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.
arbgarry is offline  
Reply With Quote
Old 29-11-07   #2 (permalink)
Senior Member
 
TheTreeWiseMen's Avatar
 
Join Date: Aug 2007
Location: NYC
Posts: 682

You engineers....
__________________
Kish m'in toukhes.



www.Thetreewisemen.com
TheTreeWiseMen is offline  
Reply With Quote
Old 29-11-07   #3 (permalink)
Site Sponsor
 
Sevsafe's Avatar
 
Join Date: Jul 2007
Location: cheltenham
Posts: 145

Didn't you know - he's a time lord
__________________
www.sevsafe.co.uk all sorts of PPE, workwear, corporate clothing etc
Sevsafe is offline  
Reply With Quote
Old 29-11-07   #4 (permalink)
member
 
Steve Bullman's Avatar
 
Join Date: Jul 2007
Location: Suffolk
Posts: 24,357

and also the sleigh is fitted with inertial dampeners...thought everyone knew that
__________________
TreeShirtz Arborist Apparel
Steve Bullman is offline  
Reply With Quote
Old 29-11-07   #5 (permalink)
Raffle Sponsor
 
Join Date: Jul 2007
Posts: 123

Quote:
Originally Posted by Stevebullman View Post
and also the sleigh is fitted with inertial dampeners...thought everyone knew that
but apparently not seatbelt warning lights

hunting trip pictures also included


and the real version of santa
Attached Images
   

Last edited by TimR; 29-11-07 at 06:38 PM..
TimR is offline  
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Find tree care advice
Single Sign On provided by vBSSO

Search Engine Friendly URLs by vBSEO 3.3.0