The publication of this model in his book De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres) just before his death in 1543 was a major event in the history of science, triggering the Copernican Revolution and making an important contribution to the Scientific Revolution.
World market prices for dairy products The average world market price of butter in 1981-2006 was US$1 580/ton, fluctuating between US$1 000/ton and US$2 000/ton. It shot up to US$2 886/ton in 2007 and, in the first six months of 2008, increased further to US$4 021/ton.
quires approximately 6 inches of water in the root zone for each ton of hay produced per acre per year. Recent USDA Market News data is still showing supreme and premium hay prices hovering in the $200 range in many markets. Fair quality alfalfa is averaging about $180 per ton, $50 per ton above last yearâs price at the same time.