News tagged with hypothesis

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Study examines viral reach of hashtags on Facebook

(Phys.org) —Facebook analysts EdgeRank Checker have performed analysis of over 35,000 posts to discover the level of viral impact of Facebook's hashtags, The discovery is, well, zero. "We decided to dig ...

Sep 05, 2013 weblog
3 / 5 (2) 1 | with audio podcast

The Black Queen Hypothesis: A new evolutionary theory

Microorganisms can sometimes lose the ability to perform a function that appears to be necessary for their survival, and yet they still somehow manage to endure and multiply. How can this be? The authors of an opinion piece ...

Mar 27, 2012
4.1 / 5 (7) 25 | with audio podcast

Compelling evidence that brain parts evolve independently

An evolutionary biologist at the University of Manchester, working with scientists in the US, has found compelling evidence that parts of the brain can evolve independently from each other. It's hoped the findings will significantly ...

Sep 26, 2012
4.7 / 5 (3) 0 | with audio podcast

New theory for magnetic stripes on Mars

(PhysOrg.com) -- A controversial new theory has been proposed to explain a series of stripes of permanently magnetized minerals containing iron in the Martian crust. The magnetized stripes, which have alternating ...

Jun 28, 2010 report
4.8 / 5 (15) 3 | with audio podcast

A bad day on Venus gets even worse

Contrary to its alluring name, Venus is the planet from hell, with an atmosphere so hot, toxic and heavy that any visitor would risk being simultaneously melted, suffocated and crushed.

Feb 29, 2012
5 / 5 (6) 3

Evolution may take giant leaps

(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...

Dec 11, 2009 weblog
4.5 / 5 (31) 40