Rotating Space Elevator Propels its Own Load

Rotating Space Elevator Propels its Own Load

Physics / General Physics

created May 21, 2009 | popularity 4.6 / 5 (44) | comments 33

(PhysOrg.com) -- The idea of the space elevator just got a little crazier. While the “traditional” concept involved using rocket propulsion or laser light pressure to propel loads up a cable anchored to Earth, ...


Fundamental flaw in transistor noise theory discovered

Fundamental flaw in transistor noise theory discovered

Physics / General Physics

created May 21, 2009 | popularity 4.5 / 5 (20) | comments 10

(PhysOrg.com) -- Chip manufacturers beware: There's a newfound flaw in our understanding of transistor noise, a phenomenon affecting the electronic on-off switch that makes computer circuits possible. According ...


BPA chemical leaches from plastic drinking bottles into people

BPA chemical leaches from plastic drinking bottles into people

Medicine & Health / Health

created May 21, 2009 | popularity 4.5 / 5 (19) | comments 9

(PhysOrg.com) -- A new study from Harvard School of Public Health (HSPH) researchers found that participants who drank for a week from polycarbonate bottles, the popular, hard-plastic drinking bottles and ...


5d dvd

Five-Dimensional DVD Could Hold Data of 30 Blu-ray Discs

Physics / General Physics

created May 21, 2009 | popularity 4.4 / 5 (18) | comments 14

(PhysOrg.com) -- While many people think that Blu-ray will replace DVDs in the near future, a new study shows that DVDs may still have a lot to offer. Researchers have designed a five-dimensional DVD that ...


The cosmos is green: Researchers catch nature in the act of 'recycling' a star

The cosmos is green: Researchers catch nature in the act of 'recycling' a star (w/Animations)

Space & Earth / Astronomy

created May 21, 2009 | popularity 4.4 / 5 (17) | comments 12

(PhysOrg.com) -- For the first time, researchers have observed a singular cosmic act of rebirth: the transformation of an ordinary, slow-rotating pulsar into a superfast millisecond pulsar with an almost infinitely ...


Rover Sees Variable Environmental History at Martian Crater

Opportunity Rover Sees Variable Environmental History at Martian Victoria Crater

Space & Earth / Space Exploration

created May 21, 2009 | popularity 4.8 / 5 (12) | comments 2

(PhysOrg.com) -- One of NASA's two Mars rovers has recorded a compelling saga of environmental changes that occurred over billions of years at a Martian crater.


Airbus plane A

Wings that waggle could cut aircraft emissions by 20 percent

Technology / Engineering

created May 21, 2009 | popularity 4.8 / 5 (12) | comments 5

Wings which redirect air to waggle sideways could cut airline fuel bills by 20% according to research funded by the Engineering and Physical Sciences Research Council (EPSRC) and Airbus in the UK.


Using 'dominance' to explain dog behavior is old hat

Using 'dominance' to explain dog behavior is old hat

Biology / Plants & Animals

created May 21, 2009 | popularity 3.4 / 5 (15) | comments 9

(PhysOrg.com) -- A new study shows how the behaviour of dogs has been misunderstood for generations: in fact using misplaced ideas about dog behaviour and training is likely to cause rather than cure unwanted ...


Vitamin D3

Vitamin D found in fish boosts brain power

Medicine & Health / Health

created May 21, 2009 | popularity 4.8 / 5 (9) | comments 0

Eating fish -- long considered 'brain food' -- may really be good for the old grey matter, as is a healthy dose of sunshine, new research suggests.


Better science, please

Medicine & Health / Health

created May 21, 2009 | popularity 5 / 5 (8) | comments 5

Just when you thought that the industry that made money on bisphenol A could not have been any cozier with the federal agency regulating the chemical comes another revelation. Cozy? How about joined at the hip?


How Flip-Flops, Baseball Caps Can Raise Your Skin Cancer Risk

Medicine & Health / Cancer

created May 21, 2009 | popularity 3 / 5 (12) | comments 15

(PhysOrg.com) -- Cheap, convenient and casual, baseball caps and flip-flops have acquired a trendy charm. Those qualities have made them must-wear accessories for teens, outdoor enthusiasts, gardeners or anyone trying to ...


NASA on Thursday said it was on target for a June mission to scour the Moon's surface for landing sites and water

NASA eyes water in Moon mission

Space & Earth / Space Exploration

created May 21, 2009 | popularity 4.4 / 5 (7) | comments 9

NASA on Thursday said it was on target for a June mission to scour the Moon's surface for landing sites and water that would allow humans to work and even live on Earth's nearest neighbor.


Back to basics: Scientists discover a fundamental mechanism for cell organization (w/Video)

Biology / Cell & Microbiology

created May 21, 2009 | popularity 4.8 / 5 (6) | comments 0

Scientists have discovered that cells use a very simple phase transition -- similar to water vapor condensing into dew -- to assemble and localize subcellular structures that are involved in formation of the embryo.


Anti-inflammatory effect of 'rotten eggs' gas

Biology / Cell & Microbiology

created May 21, 2009 | popularity 5 / 5 (5) | comments 0

Researchers from the Peninsula Medical School in Exeter have synthesized a new molecule which releases hydrogen sulfide (H2S) - the gas that gives rotten eggs their characteristic smell and which has recently been found to b ...


Scientists fight cancer with nanotechnology

Nanotechnology / Bio & Medicine

created May 21, 2009 | popularity 5 / 5 (5) | comments 1

(PhysOrg.com) -- Nanotechnology researchers at the University of Arkansas at Little Rock have developed a method of detecting, tracking, and killing cancer cells in real time with carbon nanotubes.




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