450 Sheep Jump to Their Deaths in Turkey
ISTANBUL, Turkey - First one sheep jumped to its death. Then stunned Turkish shepherds, who had left the herd to graze while they had breakfast, watched as nearly 1,500 others followed, each leaping off the same cliff, Turkish media reported.
In the end, 450 dead animals lay on top of one another in a billowy white pile, the Aksam newspaper said. Those who jumped later were saved as the pile got higher and the fall more cushioned, Aksam reported.
"There's nothing we can do. They're all wasted," Nevzat Bayhan, a member of one of 26 families whose sheep were grazing together in the herd, was quoted as saying by Aksam.
The estimated loss to families in the town of Gevas, located in Van province in eastern Turkey, tops $100,000, a significant amount of money in a country where average GDP per head is around $2,700.
"Every family had an average of 20 sheep," Aksam quoted another villager, Abdullah Hazar as saying. "But now only a few families have sheep left. It's going to be hard for us."
Old paper on aspects of rolling not commonly covered and may prove beneficial to the physics programming community of gamedev. For example, on a turning wheel, not all the points behave uniformly, that is, not all of them stay at a fixed distance from the wheel's axis. A wheel can be imagined to distort and stretch as some points move in and out where we see that certain points are indistict or faded. Nonetheless there exist distinct points where certain points move only in the radial direction. Also, a turning wheel, regardless of frictional effects can in fact turn on an extremely slippery surface. As it lands on the surface of little friction v' = 1/2v
Ofcourse I am not doing anyone much good by posting it here..oh well:
Rolling as a frictional equilibration of translation and rotation
Natthi L Sharma and David D Reid
Abstract. In this paper we discuss the role of static and kinetic friction in the dynamics of rolling motion. First, the role of kinetic friction in bringing about and maintaining an equilibration, called free rolling, between the translational and rotational motions of a rigid disc on a rigid surface is briefly discussed. We then extend the discussion to real wheels and provide a physical origin of rolling friction by introducing a new concept, quasi-rolling, to explain how pure rolling can exist even in the presence of some sliding. Our treatment is specifically applicable to rolling motion between two hard surfaces, such as ball- and roller-bearings.