News tagged with physical evidence

Hoodoos—key to earthquakes?

In the absence of long-term instrumental data, fragile rock formations, called hoodoos, may be key to understanding seismic hazard risk. In this study, researchers consider two hoodoos in Red Rock Canyon region to put limits ...

Feb 04, 2013
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What did our ancestors look like?

A new method of establishing hair and eye colour from modern forensic samples can also be used to identify details from ancient human remains, finds a new study published in BioMed Central's open access journal ...

Jan 13, 2013
4 / 5 (4) 1 | with audio podcast

Friction almost vanishes in microscale graphite

(Phys.org) -- In the phenomenon of superlubricity, two solid surfaces can slide past each other with almost no friction. The effect occurs when the solid surfaces have crystalline structures and their lattices ...

Jun 04, 2012 feature
5 / 5 (9) 9 | with audio podcast