ScienceDaily: Top Science News

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• Thousands of invisibility cloaks trap a rainbow
• New type of male contraceptive? Key gene essential for sperm development discovered
• Nnew genetic method developed to pinpoint individuals' geographic origin
• Unusual quantum effect discovered in earliest stages of photosynthesis

Thousands of invisibility cloaks trap a rainbow Posted: 25 May 2012 07:39 AM PDT Many people anticipating the creation of an invisibility cloak might be surprised to learn that a group of American researchers has created 25,000 individual cloaks.

New type of male contraceptive? Key gene essential for sperm development discovered Posted: 24 May 2012 06:52 PM PDT A new type of male contraceptive could be created thanks to the discovery of a key gene essential for sperm development. The finding could lead to alternatives to the conventional male contraceptives that rely on disrupting the production of hormones, such as testosterone. These treatments can cause side effects such as irritability, mood swings and acne.

Nnew genetic method developed to pinpoint individuals' geographic origin Posted: 24 May 2012 08:25 AM PDT Scientists have developed an innovative approach for the modeling of genetic variation in two- or three-dimensional space called spatial ancestry analysis (SPA). With SPA, researchers model the spatial distribution of each genetic variant by assigning a genetic variant's frequency as a continuous function in geographic space.

Unusual quantum effect discovered in earliest stages of photosynthesis Posted: 24 May 2012 06:29 AM PDT Quantum physics and plant biology seem like two branches of science that could not be more different, but surprisingly they may in fact be intimately tied. Scientists have discovered an unusual quantum effect in the earliest stages of photosynthesis.

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