Talk:Cow tipping/Archive 2

message: The whole part about Chi seems a little out of place. Sure, tipping would be possibble with Chi, but so would the ability to lift trucks over one's head.  Absurd, questionable and extranneous.
:Leave chi in as a possibility, but edit it.  - Person who posted the chi bit.  (My general accont is User:DyslexicEditor, but I don't log in and am not using my home computer so I might not receive a message.)
:signing my name for doing the message DyslexicEditor 11:06, 12 December 2005 (UTC)
thread_title:  Chi? 

message: Dead link in article The Most Urban of All Urban Legends
If anyone knows where it goes, please fix.  DyslexicEditor 22:15, 14 December 2005 (UTC)
replies: text: I've changed it to the Internet Archive's most recently saved version. —Chowbok 22:34, 20 March 2006 (UTC)
thread_title:  dead link 

message: It seems that there is ample precedent for verified pop culture references in articles such as this, which really is a creation primarily of pop culture. Ziggurat 23:06, 25 April 2006 (UTC)
replies: text: In the movie Cars, they go "tractor tipping." CyberAnth 13:05, 7 January 2007 (UTC)
thread_title:  Pop culture 

message: In the movie, Cars, a "rural" tow truck apparently takes an "urban" racecar to do some "tractor tipping." This is clearly a reference to Cow Tipping, as the world the movie is set in has no human or animal life. -AndromedaRoach 00:19, 6 June 2006 (UTC)
thread_title:  Tractor Tipping 

message: I used to live in Woodstock Ontario (Canada), it was a common practise to take new commers to the country in high school cow tipping. There is a fictional version of this in the TV show Cheers ... 
---Wolfe 19:05, 25 June 2006 (UTC)
thread_title:  It's a snipe hunt! 

message: Dear Editors of Wikipedia,
 
Regarding your article on Cow Tipping.  The possibility of cow tipping can be show by the calculations below.  These calculations have been confirmed by field observations but not in a controlled environment as of the writing of this email.
 Using the dimensions and weight of the cow given in the times online article dated November 05, 2005 
 "Cow-tipping myth hasn't got a leg to stand on"
article
http://www.timesonline.co.uk/article/0,,2-1858246,00.html
 
 Times Online. Retrieved on 2006-10-28. 
The calculations below show that the cow in the above article can be tipped by one or two people with a total weight of 300 pounds running at  13.4 mph.
--
Two people running at 13.4 mph  (6 meters/second) one weighing 160 pounds (72 kg) and the other 140 pounds (64 kg) for a total mass 300 pounds (136 kg) can tip a cow (such as the one in your example) weighing 1500 pounds (682 kg). 
 
The cow's center of gravity must be raised .07 meters (2.76 inches) [0.79m-0.72m] (see diagram above) in order to tip the cow.
 
Distance from obstruction (hoof) to center of cow’s mass=0.79m
Distance center of mass of cow must be raised to tip cow=0.79m-0.72m  = 0.07m
 
 
As shown in the calculations below, the minimum  momentum required to tip the cow is 798 kg-m/s.
 
While the momentum supplied by the two people is 816(kg)(m)/s. 
 
--
Because of the law of conservation of momentum
           M1xV1 = M2xV2 
[McowVcow =MpeopleVpeople] 
 
and the fact that the momentum supplied by the two people (816 (kg)(m)/s) is greater than the momentum required (798 (kg)(m)/s) to tip the cow, the cow is tipped!!
 
-- 
 
 
Masses, Velocities, and Momentum:
 
Mc= mass of cow=682 kg (1500 lbs)
g=acceleration due to gravity=9.80m/s2
Cm=center of mass=center of cow =0.32m  (x-coordinate) 0.72m (y-coordinate)
Weight of Cow = Mc´g = 682kg x 9.8 m/s2
Wcow=6684 (kg)(m)/(s2)
 
Mass of persons (takes two people):
Hypothetical values
Mp1=72 kg 
Mp2=64 kg
Total mass of people=136 kg (300 lbs)
 
Velocity of people (running together):
Vp1=Vp2=6m/s (13.4mph)
 
Momentum of people:
Total mass of people=136kg
Velocity of people=6m/s
 
Minimum Velocity (and momentum required) for Cow Tipping:
 
M=682kg
Vo=1.2m/s
Vf=0m/s
q=24°
g=9.8m/s2
 
Distance from obstruction (hoof) to center of cow’s mass=0.79m
Distance center of mass of cow must be raised to tip cow =0.79m-0.72m=0.07m
 
KEcow=1/2mv
 
PEcow=mgh
 
PEcow=(682kg)(9.8m/s2)(0.07m)=467.9(kg)(m2)/s2
KE required to tip cow=467.9(kg)(m2)/s2
KEcow=1/2mv2
 
Minimum Velocity of cow required to tip
 
Vcow min = Square root of (KEcow)x(mass of cow)
                  = square root of (2)x(467.9kg´m/s2)/(682kg)
                  =1.17m/s
 
 
Minimum momentum required to tip cow = (Mcow)(Vcow min) 
= (682kg) (1.17m/s) = 798 (kg)(m)/s
 
Momentum of people=m1v1+m2v2
(72kg)(6m/s)+(64 kg)(6m/s)=816(kg)(m)/s
 
Since 816 (kg)(m)/s > 798 (kg)(m)/s the cow tips!!
 
We hope you find this information helpful.
 
Richard and Suzanne Benedict
509-784-2859
 
rlb4651@yahoo.com
and
suzannelbenedict@yahoo.com
 
 
Bibliography:
 
1)     UNL college of Engineering and mechanics. The Statistics of Cow Tipping. University of Nebraska-Lincoln. Retrieved on October 28, 2006.
2)     Malvern, Jack. Cow-tipping myth hasn’t got a leg to stand on. Times Online. Retreived October 28, 2006.
3)     The Mechanics of Cow Tipping (PDF). University of British Colombia (April 9, 2003).
4)     Cutnell, John E. and Kenneth W. Johnson. Physics. Hoboken, NJ: John Wiley & sons Inc., 2005.
Wilson, Jerry D. and Cecilia A. Hernandez. Physics Laboratory Experiments. Boston, MA: Houghton Mifflin Company, 2005.
::Whilst this is a believable calculation - the data fed into it is suspect. 6 m/s is a rather fast running speed.  Olympic sprinters manage around 9m/sec - but that's on a smooth running track with a racing start and specialised shoes, etc - not a couple of untrained kids in a cowpat-littered uneven field in the dark!  If you back your speed down to a more reasonable 4 or even 5 m/s, the conclusion becomes that two humans cannot tip a cow. 66.137.234.217 15:21, 14 March 2007 (UTC)
thread_title: "e-mail"

message: I don't know what it'd be called, but this article is just a scream to read. I'd love to see it expand into a great level of detail, if it could be verified and all. I loved the caption. Definitely needs a highly detailed section on the physics of cow tipping. :D CyberAnth 13:04, 7 January 2007 (UTC)
thread_title: WP needs a new award criteria for this article

message: http://www.flickr.com/photos/tracy_n_brandon/346828878/ seems to be under the Creative Commons license, and clearly more relevant.
Would that get more support than the current image? --AnonEMouse (squeak) 15:24, 13 April 2007 (UTC)
replies: text: AnonEMouse, how dare you try to introduce humor into this article, especially with something as serious as the image! Shame, shame... GracenotesT § 16:11, 22 April 2007 (UTC)
thread_title:  Alternative image? 

message: 2 of the 3 references are self-published original research by students without any peer review (and the third simply reports on one of the others):
*The Statics of Cow Tipping is a student project page from a College of Engineering
*The Mechanics of Cow Tipping (PDF) is also just a student study from a class on zoological physics.
Are these reliable sources for an encyclopedia article?  Not a dog 04:00, 14 April 2007 (UTC)
replies: text: Maybe saying that a study was done and found such and such results would be better?  I don't know if that sort of thing is considered acceptable article material or not though.  Milto LOL pia 18:26, 14 April 2007 (UTC)
replies: text: yeah, but I could walk out behind my house and look at a bunch of cows, put it up on a web page, and then claim that "a study was done" - that's against the very notion of WP:RS. Not a dog 18:49, 14 April 2007 (UTC)
replies: text: Lol!  Good point.  Milto LOL pia 19:53, 14 April 2007 (UTC)
thread_title:  References are self-published original research 

message: I was just told it is "absurd" to claim the caption "an unsuspecting potential victim" is unverifiable. So prove it then. Prove that the cow is "unsuspecting". The onus is on the person making the claim to either prove that it is true or that it can be attributed somewhere. Yes, it's very funny, but is it verifiable? If it cannot be attributed or verified, it should be removed. Mahalo. --Ali'i 21:49, 21 April 2007 (UTC)
replies: text: its not verifiable. its a cow. no one here can claim to know what it suspects or what it does not suspect. this is idiotic. 81.169.155.229 01:11, 22 April 2007 (UTC)
thread_title:  More caption absurdity...