Add BrightSurf on Google Email

APS physics tip sheet #51

Researchers have achieved a record-breaking stop of light for over one second using electromagnetically induced transparency. A new model clarifying the mathematical basis for diversity in Darwinian evolution has been developed, suggesting that related species emerging from a common ancestor can quickly evolve in different directions.

SourceAmerican Physical Society·JournalPhysical Review Letters·DateAug 8, 2005

New Royal Society journal studies

Researchers studied social implications of winner and loser effects in green swordtail fish, nocturnal colour vision in geckos, and bird distress calls. They also examined queen and worker policing in wasps and developed a model to minimize the impact of exotic infections.

SourceRoyal Society·JournalProceedings of the Royal Society of London·DateNov 9, 2004

'Selfish routing' slows the Internet

A new study by Cornell University researchers finds that selfish routing on the Internet can slow down data transfer by up to one and one-third times what could be achieved by an ideal system. To combat this, they suggest routers consider not only the least congested route but also its impact on the network when sending information.

Adversaries would find other attack methods, game theory shows

Researchers applied game theory to assess the feasibility of a proposed national missile defense (NMD) system. They found that protection may be a placebo if widely believed to be effective, prompting a cautious approach to deployment. The study suggests focusing on research and development and exploring alternative credible alternatives.

Game of life allows all mating strategies

A study by Cornell University researchers found that each mating strategy in side-blotched lizards has its advantages and vulnerabilities, allowing them to coexist and perpetuate. The aggressive orange-throated males, loyal blue-throated males, and sneaky yellow-throated males all have a reasonable chance of reproductive success.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateDec 4, 2000