http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Pieces of amber containing parts of a spider's web have been found in East Sussex and dated back to the Cretaceous period 140 million years ago, which makes it the oldest spider's web known. http://www.physorg.com/news176364340.html Other Sciences Mon, 02 Nov 2009 09:40:01 EST news176364340 (PhysOrg.com) -- An unexpected discovery made by Macquarie University PhD student Sargent Bray about the origin and nature of chemical compounds contained in ancient amber has changed our understanding of when modern flowering plants first began to evolve. http://www.physorg.com/news173704257.html Biology Fri, 02 Oct 2009 12:12:12 EST news173704257 (PhysOrg.com) -- Monochromatic light-emitting diodes cover a large part of the visible spectrum with high effi-ciency. For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, i. e., one photon is emitted for approx. 2/3 of the electron-hole pairs injected into the diode. For red light, phosphor diodes achieve efficiencies of approx. 50%. However, so far no highly efficient monochromatic LEDs have been available for the `yellow gap` at around 560 nm. Now researchers with Philips Lumileds have developed a monochromatic nitride diode that closes this gap. http://www.physorg.com/news167555795.html Physics Thu, 23 Jul 2009 08:17:44 EST news167555795 (PhysOrg.com) -- Ah, Paris. Land of the Eiffel Tower, delicious French bread and... tropical rainforests? Sacrebleu! It seems unlikely, but scientists have discovered evidence that France may have been a hot, wet tropical rainforest 55 million years ago. http://www.physorg.com/news166977549.html Chemistry Thu, 16 Jul 2009 15:50:02 EST news166977549 French and Chinese blue glass, Dutch layered glass, Baltic amber: roughly 70,000 beads manufactured all over the world have been excavated at one of the Spanish empire's remotest outposts, the Santa Catalina de Guale Mission. The beads were found as part of an extensive, ongoing research project led by a team of scientists from the American Museum of Natural History on St. Catherines Island off the coast of Georgia. Comprising the largest repository ever from Spanish Florida, the beads enlighten archaeologists about past trade routes and provide clues to the social structure and wealth of the people. http://www.physorg.com/news158502528.html Other Sciences Thu, 09 Apr 2009 13:29:41 EST news158502528 (PhysOrg.com) -- A 4,000-year-old amber necklace has been discovered at a dig organised by a team of archeologists in Manchester. http://www.physorg.com/news147363832.html Other Sciences Mon, 01 Dec 2008 14:23:52 EST news147363832 (PhysOrg.com) -- Marine microorganisms have been found in amber dating from the middle of the Cretaceous period. The fossils were collected in Charente, in France. This completely unexpected discovery will deepen our understanding of these lost marine species as well as providing precious data about the coastal environment of Western France during the Cretaceous. http://www.physorg.com/news145817882.html Other Sciences Thu, 13 Nov 2008 16:58:02 EST news145817882