News tagged with rule
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 ...
May 23, 2012 |
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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 ...
Jan 04, 2012 |
4.6 / 5 (24) |
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Stanford scholars examine big money's influence on elections
The U.S. Supreme Court ruling in Citizens United resulted in an unprecedented wave of independent – and strikingly negative – political advertising.
Other Sciences / Social Sciences
May 22, 2012 |
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GPS court ruling leaves US phone tracking unclear
A US Supreme Court decision requiring a warrant to place a GPS device on the car of a criminal suspect leaves unresolved the bigger issue of police tracking using mobile phones, legal experts say.
Feb 11, 2012 |
4 / 5 (2) |
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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.
Mar 08, 2012 |
5 / 5 (3) |
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Microsoft hits Motorola, Google with EU complaint
Microsoft on Wednesday lodged a formal complaint with the European Union's competition regulator against Motorola Mobility and its soon-to-be owner Google, saying Motorola's aggressive enforcement of patent ...
Feb 22, 2012 |
2 / 5 (1) |
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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 ...
Nov 30, 2011 |
4.7 / 5 (15) |
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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 ...
Mar 01, 2012 |
5 / 5 (3) |
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EU probes new Google privacy policy
The European Union's data protection authorities have asked Google to delay the rollout of its new privacy policy until they have verified that it doesn't break the bloc's data protection laws.
Feb 03, 2012 |
4 / 5 (1) |
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Tighter online privacy rules for preteens proposed
Many preteens have dived into the expanding worlds of social networks and smartphone apps, but federal rules designed to protect their privacy are still in the era of Web portals and flip phones.
Sep 16, 2011 |
5 / 5 (1) |
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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
May 26, 2011 |
3.3 / 5 (4) |
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EU probes Motorola in patent war with Apple, Microsoft
European regulators opened Tuesday two antitrust investigations against Motorola Mobility, bought by US Internet giant Google, in the latest chapter of an escalating patent war with Apple and Microsoft.
Apr 03, 2012 |
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States push harder for online sales tax collection
(AP) -- Tax-free shopping is under threat for many online shoppers as states facing widening budget gaps increasingly pressure Amazon.com Inc. and other Internet retailers to start collecting sales taxes from their residents.
Mar 21, 2011 |
1 / 5 (1) |
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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 ...
Jul 22, 2010 |
4.8 / 5 (43) |
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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 ...
Jul 21, 2011 |
4.3 / 5 (4) |
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