PhysOrg, Ostar - the latest high-performance light-emitting diode from Osram - is 50 times brighter than comparable predecessor models. Because of its small size (3 cm x 1 cm) and high brightness of 120 lumens (lm),
Paul Graham May 2003 "why don't more people use it? I was asked this question by a student in the audience at a talk I gave recently. Not for the first time, either."
The age-old practice of turning the soil before planting a new crop is a leading cause of farmland degradation. Many farmers are thus looking to make plowing a thing of the past