ScienceDaily: Most Popular News

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• Experiment opens the door to multi-party quantum communication
• Electric 'thinking cap' controls learning speed
• Engineers design 'living materials': Hybrid materials combine bacterial cells with nonliving elements that emit light
• Space sunflower may help snap pictures of planets
• Noninvasive colorectal cancer screening tool shows unprecedented detection rates
• Deodorants: Do we really need them?

Experiment opens the door to multi-party quantum communication Posted: 23 Mar 2014 03:44 PM PDT In the world of quantum science, Alice and Bob have been talking to one another for years. Charlie joined the conversation a few years ago, but now with spacelike separation, scientists have measured that their communication occurs faster than the speed of light. For the first time, physicists have demonstrated the distribution of three entangled photons at three different locations (Alice, Bob and Charlie) several hundreds of meters apart, proving quantum nonlocality for more than two entangled photons.

Electric 'thinking cap' controls learning speed Posted: 23 Mar 2014 02:19 PM PDT Caffeine-fueled cram sessions are routine occurrences on any college campus. But what if there was a better, safer way to learn new or difficult material more quickly? What if "thinking caps" were real? Scientists have now shown that it is possible to selectively manipulate our ability to learn through the application of a mild electrical current to the brain, and that this effect can be enhanced or depressed depending on the direction of the current.

Engineers design 'living materials': Hybrid materials combine bacterial cells with nonliving elements that emit light Posted: 23 Mar 2014 12:21 PM PDT Inspired by natural materials such as bone -- a matrix of minerals and other substances, including living cells -- engineers have coaxed bacterial cells to produce biofilms that can incorporate nonliving materials, such as gold nanoparticles and quantum dots. These "living materials" combine the advantages of live cells, which respond to their environment, produce complex biological molecules, and span multiple length scales, with the benefits of nonliving materials, which add functions such as conducting electricity or emitting light.

Space sunflower may help snap pictures of planets Posted: 22 Mar 2014 06:49 AM PDT A spacecraft that looks like a giant sunflower might one day be used to acquire images of Earth-like rocky planets around nearby stars. The prototype deployable structure, called a starshade, is being developed by NASA's Jet Propulsion Laboratory in Pasadena, Calif.

Noninvasive colorectal cancer screening tool shows unprecedented detection rates Posted: 19 Mar 2014 04:57 PM PDT Results of a clinical trial of Cologuard show unprecedented rates of precancer and cancer detection by a noninvasive test. The detection rates are similar to those reported for colonoscopy. Cologuard, is a noninvasive sDNA test for the early detection of colorectal precancer and cancer. The Cologuard test is based on a stool sample that is analyzed for DNA signatures of precancer or cancer.

Deodorants: Do we really need them? Posted: 17 Jan 2013 05:49 AM PST More than 75 percent of people with a particular version of a gene don't produce under-arm odor but use deodorant anyway.

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