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News tagged with rule

Quantum Mechanics Not In Jeopardy: Physicists Confirm Decades-Old Key Principle Experimentally

(PhysOrg.com) -- When waves -- regardless of whether light or sound -- collide, they overlap creating interferences. Austrian and Canadian quantum physicists have now been able to rule out the existence of ...

Physics / Quantum Physics

created Jul 22, 2010 | popularity 4.8 / 5 (43) | comments 395 | with audio podcast

Leonardo da Vinci's tree rule may be explained by wind

(PhysOrg.com) -- More than 500 years ago, Leonardo da Vinci observed a particular relationship between the size of a tree’s trunk and the size of its branches. Specifically, the combined cross-sectional ...

Physics / General Physics

created Jan 04, 2012 | popularity 4.6 / 5 (24) | comments 16 | with audio podcast feature

Uncovering Da Vinci's rule of the trees

As trees shed their foliage this fall, they reveal a mysterious, nearly universal growth pattern first observed by Leonardo da Vinci 500 years ago: a simple yet startling relationship that always holds between ...

Physics / General Physics

created Nov 30, 2011 | popularity 4.7 / 5 (15) | comments 19 | with audio podcast

An unconscionable conscience rule

Doctors take an oath to put their patients' interests first. A new Bush administration rule will change that. The so-called "conscience rule" is one of a host of last-minute regulatory changes being made in the waning hours ...

Medicine & Health / Health

created Dec 26, 2008 | popularity 4.3 / 5 (13) | comments 22

Hacking code of leaf vein architecture solves mysteries, allows predictions of past climate

(Phys.org) -- UCLA life scientists have discovered new laws that determine the construction of leaf vein systems as leaves grow and evolve. These easy-to-apply mathematical rules can now be used to better ...

Biology / Plants & Animals

created May 23, 2012 | popularity 4.2 / 5 (13) | comments 2 | with audio podcast

EU: Microsoft agrees to unbundle Explorer from Windows

(AP) -- Microsoft Corp. will offer computer users a choice of rival Web browsers to ward off new European Union antitrust fines, EU regulators and Microsoft said Friday.

Technology / Software

created Jul 24, 2009 | popularity 4.8 / 5 (6) | comments 13

Looming high court ruling could taint justice, legal expert says

A pending U.S. Supreme Court ruling could aggravate the influence of corporate campaign spending that already has skewed justice in some of the nation's courts, a University of Illinois labor law expert warns.

Other Sciences / Economics & Business

created Jan 13, 2010 | popularity 4.8 / 5 (6) | comments 1

The first goal is the deepest: Can mathematics predict the match outcome?

Jack Brimberg and Bill Hurley of The Royal Military College of Canada, Kingston, Ontario, point out that sports commentators will often argue the importance of scoring the first goal and often suggest that a team improves ...

Other Sciences / Mathematics

created Jun 02, 2009 | popularity 4.3 / 5 (6) | comments 1

Market exchange rules responsible for wealth concentration

Two Brazilian physicists have shown that wealth concentration invariably stems from a particular type of market exchange rules – where agents cannot receive more income than their own capital. The authors concluded that ...

Physics / General Physics

created Mar 07, 2012 | popularity 5 / 5 (4) | comments 0

Parasites help reveal new ecological rules

Scientists at UC Santa Barbara and other institutions say their new research is expected to profoundly affect the field of ecology and can assist the management of ecosystems, including forests, lakes, and ...

Biology / Ecology

created Jul 21, 2011 | popularity 4.3 / 5 (4) | comments 3 | with audio podcast

Living, and coughing, downwind of Texas smoke stacks

When the black smoke pours out of the Texan oil refinery across the road in yet another unplanned discharge, Erma Lee Ellas has just one way to try to keep the cloud of chemicals from reaching her asthmatic ...

Space & Earth / Environment

created Nov 10, 2011 | popularity 4.3 / 5 (4) | comments 0

Scientists present first model of how buds grow into leaves

Leaves come in all shapes and sizes. Scientists have discovered simple rules that control leaf shape during growth. Using this 'recipe', they have developed the first computer model able to accurately emulate ...

Biology / Plants & Animals

created Mar 01, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Court ruling forces FBI to deactivate GPS to track suspects

A recent US Supreme Court decision is hurting the ability of federal law enforcement agencies to monitor criminal suspects with global positioning satellites (GPS), according to FBI Director Robert Mueller.

Technology / Other

created Mar 08, 2012 | popularity 5 / 5 (3) | comments 6

Encrypted VoIP not as secure as it sounds

(PhysOrg.com) -- Linguistics researchers working with computer scientists at the University of North Carolina have shown that voice conversations over the Internet, even if they are encrypted, are not as secure ...

Technology / Computer Sciences

created May 26, 2011 | popularity 3.3 / 5 (4) | comments 5 | with audio podcast report

EU says Microsoft seeks hearing in antitrust case

Microsoft is seeking a hearing from EU antitrust regulators in its defence against accusations of unfairly crushing rivals in the web browser market, the European Commission said Wednesday.

Technology / Software

created Apr 29, 2009 | popularity 3.7 / 5 (3) | comments 0