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Surprising Transition Observed When Flowing Grains Become Too Jam Packed To Move (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| Using color-shifting cylinders as substitutes for sand grains or coal lumps, a Duke University-led team of physicists has pinpointed a critical density level where granular materials suddenly cease flowing like a liquid and instead congeal into a state of rigidity. |
NASA Space Sleuth Hunts The Trail Of Earth's Water (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| For the first time, NASA scientists have used a shrewd spaceborne detective to track the origin and movement of water vapor throughout Earth's atmosphere. This perspective is vital to improve the understanding of Earth's water cycle and its role in weather and climate. |
Human Preference For Other Species Could Determine Whether They Survive (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| Human preferences probably will play a major role in determining which other species survive in a changing world, and new research shows those preferences could be governed by subtle factors. |
Women In Polluted Areas At Higher Risk Of Cardiovascular Disease (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| Women living in areas with higher levels of air pollution have a greater risk of developing cardiovascular disease and subsequently dying from cardiovascular causes, according to a University of Washington study appearing in the February 1 issue of the New England Journal of Medicine. The study is one of the largest of its kind, involving more than 65,000 Women's Health Initiative Observational Study participants, age 50 to 79, in 36 cities across the United States. |
Passive Smoke In Workplace Increases Lung Cancer Risk, Report Says (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| An analysis of nearly two dozen studies confirms the association between passive smoke in the workplace and an increased risk of lung cancer, according to a report in the American Journal of Public Health. |
Earth-shattering Proof Of Continents On The Move (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| Africa is being torn apart. And as Ethiopia's rift valley grows slowly wider, an international team of scientists is taking a unique opportunity to plot the progress of continents on the move. |
Something New Under The Sun (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| That plants grow better if grown in a greenhouse in the correct climate is nothing new. Dutch researcher Rachel van Ooteghem has designed a control system for an improved solar greenhouse that yields more. In the new greenhouse, good climate control with sustainable energy resulted not only in an increased crop yield but also a lower gas bill. |
Huddling And A Drop In Metabolism Allow Penguins To Survive The South Pole Cold (View Original Story)
Source: Posted: 02-01-2007 at 06:00:32
| Emperor penguins endure their incubation and fast for four dark and bitterly cold months each year. The tight huddling among these South Pole penguins is a key energy-saving mechanism that allows them to endure the extremely harsh conditions. Huddling and a drop in metabolism allow penguins to survive the biting South Pole cold. |
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