Physicists hope to tie light beams in knots

Physics / Physics

created Sep 12, 2008 | popularity 4.6 / 5 after 131 votes | comments 33

Usually, light beams shine in a straight line, with the possible exception of light being bent by gravity. But scientists are now investigating how to make light beams into looped and knotted configurations. ...


New cannabis-like drugs could block pain without affecting brain, says study

Medicine & Health / Medications

created Sep 12, 2008 | popularity 4.4 / 5 after 26 votes | comments 8

A new type of drug could alleviate pain in a similar way to cannabis without affecting the brain, according to a new study published in the journal Pain on Monday 15 September.


Researchers develop nano-sized 'cargo ships' to target and destroy tumors

Nanotechnology / Bio & Medicine

created Sep 12, 2008 | popularity 4.9 / 5 after 50 votes | comments no comments yet

Scientists have developed nanometer-sized 'cargo ships' that can sail throughout the body via the bloodstream without immediate detection from the body's immune radar system and ferry their cargo of anti-cancer ...


Strict Mediterranean diet can help reduce deaths from major chronic diseases

Medicine & Health / Diseases

created Sep 12, 2008 | popularity 3.9 / 5 after 33 votes | comments 2

Sticking to a full Mediterranean diet provides substantial protection against major chronic diseases including heart disease, cancer and Parkinson's and Alzheimer's disease, according to a study published on bmj.com today.


Revising and re-sizing history: New work shows Ohio site to be an ancient water works, not a fort

General Science / Archaeology & Fossils

created Sep 12, 2008 | popularity 4.7 / 5 after 26 votes | comments no comments yet

(PhysOrg.com) -- The site known as Miami Fort is no fort at all, and it is also much larger than previously believed – so large, in fact, that its berms stretch to almost six kilometers in length, making it ...


Deep brain stimulation offers hope to people with treatment-resistant illnesses

Medicine & Health / Diseases

created Sep 12, 2008 | popularity 4.8 / 5 after 25 votes | comments no comments yet

Every day during a four-year deep depression, Sean Miller thought of ending his life. Nothing relieved the emotional darkness - not therapy, not medication, not loving attention from family and friends.


Curbing coal emissions alone might avert climate danger, say researchers

Space & Earth science / Earth Sciences

created Sep 12, 2008 | popularity 3.6 / 5 after 36 votes | comments 19

An ongoing rise in atmospheric carbon dioxide from burning of fossil fuels might be kept below harmful levels if emissions from coal are phased out within the next few decades, say researchers. They say that ...


All in the Hips: Fossilized Discovery Leads Paleontologist to Find Early Whales Used Back Legs for Swimming

General Science / Archaeology & Fossils

created Sep 12, 2008 | popularity 4.2 / 5 after 13 votes | comments 3

(PhysOrg.com) -- The crashing of the enormous fluked tail on the surface of the ocean is a “calling card” of modern whales. Living whales have no back legs, and their front legs take the form of flippers that ...


Resurfaced story raises questions on Google search

Technology / Internet

created Sep 12, 2008 | popularity 4 / 5 after 10 votes | comments 6

It has long been the popular term for lightning-speed Web searches. But could "Google" eventually come to mean stumbling accidentally and disastrously onto misleading reports and information?


Phoenix Lander Sees, Feels Martian Whirlwinds in Action

Space & Earth science / Space Exploration

created Sep 12, 2008 | popularity 3.9 / 5 after 9 votes | comments 4

(PhysOrg.com) -- NASA's Phoenix Mars Lander has photographed several dust devils dancing across the arctic plain this week and sensed a dip in air pressure as one passed near the lander.




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