[Lex Computer & Tech Group/LCTG] Is physics useful?

[Michael Alexander]

As I recall, Alan (and others), there used to be a test in which (hopefully dead) chickens were fired at aircraft windshields to test the windshields’ integrity against bird strikes.  Seriously.  Maybe the test is still in use.
    Mike Alexander


Sent from Yahoo Mail for iPhone


On Saturday, September 23, 2023, 12:52 PM, Alan Millner via LCTG <lctg at lists.toku.us> wrote:

My crude version of an old joke this brings to mind:
The British aircraft corporation, bringing their first large airliner to market, was anxious to satisfy American safety requirements. They noted a test for the windscreen to survive bird strikes. So, they assembled an air cannon, and bought a commercial turkey as a test object, and carefully calibrated the speed of the exiting bird to replicate the speed of the aircraft. When they fired the bird at the windshield, they were horrified to see the turkey crash through the windscreen, smash the back of the pilot’s seat, and bury itself in the partition behind. They sent a panicky email to NASA asking for assistance with the problem. Nasa sent a three word reply:”Thaw the turkey.” 

Alan Millneramillner at alum.mit.eduhome 781-862-7893. cell 781-999-434648 North St., Lexington MA 02420



On Sep 23, 2023, at 11:59 AM, Peter Albin via LCTG <lctg at lists.toku.us> wrote:
Who is bringing the frozen chicken to the next POT-poor-i?
Peter

On Sep 23, 2023, at 11:34 AM, John Rudy via LCTG <lctg at lists.toku.us> wrote:



I knew I could trust you.Anyway, the chicken only needs to be heated to 150 degrees and a 2# chicken is really small  From: Charles Holbrow <chholbrow at gmail.com> 
Sent: Saturday, September 23, 2023 11:28 AM
To: jjrudy1 at comcast.net
Cc: Lex Computer Group <lctg at lists.toku.us>; Colin Rudy <colinr1230 at gmail.com>; phil radoff <plradoff at yahoo.com>; Mel Weinzimer <melweinzimer at yahoo.com>; Karen Kalil Brown <kkalilbrown at hotmail.com>; George Starkschall <gstarkschall at gmail.com>
Subject: Re: [Lex Computer & Tech Group/LCTG] Is physics useful?  Heat capacity for 1 kg of water is almost 4200 J/kg/C.  I would expect a frozen chicken to be mostly water, but maybe the chicken industry has experimentally determined the heat capacity of a chicken carcass.  This calculation does not include heat of fusion necessary to melt ice i.e. to defrost the frozen chicken.  Heat will be carried away from the warming chicken by vapor which will also include heat of vaporization which is big. The rate of heat loss will soon equal the rate it is being delivered by the slaps.  Including all the physics will make for a much bigger number of slaps. That's a physics calculation.  In addition, any self respecting engineer would provide a margin for error.   Of course you could build an apparatus that slaps the chicken in a closed environment so there is no heat loss while the chicken is being slapped.  Then you will need to supply enough slap energy to heat that apparatus as well as the chicken.  Don't invest in this.  --Charlie          On Sat, Sep 23, 2023 at 9:21 AM John Rudy via LCTG <lctg at lists.toku.us> wrote:
The average person would not be able to do this, and wouldn’t even care.  But to me it is beauty.  Of course I have not verified the numbers.  John Rudy 781-861-0402781-718-8334  cell13 Hawthorne LaneBedford MAjjrudy1 at comcast.net ===============================================
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