07/07/2014

Fossils unearthed at California construction site

Giant teeth from a 40-foot (12-meter)-long shark and portions of what could turn out to be an entire whale skeleton are among the hundreds of fossils being carefully unearthed at a dam construction site in California's Silicon ...

Platonic solids generate their 4-dimensional analogues

Alicia Boole Stott, the third daughter of mathematician George Boole, is probably best known for establishing the term "polytope" for a convex solid in four dimensions. Alicia was also a long time collaborator of HSM Coxeter, ...

New type of soot particle discovered from wildfire emissions

Every year, wildfires clear millions of hectares of land and emit around 34-percent of global soot mass into the atmosphere. In certain regions, such as Southeast Asia and Russia, these fires can contribute as much as 63-percent ...

When life went global

"An origin of life is not the same as an origin of a biosphere—that's an important distinction," says David Grinspoon, a planetary scientist and curator of astrobiology for the Denver Museum of Nature & Science.

Consider the 'anticrystal'

(Phys.org) —For the last century, the concept of crystals has been a mainstay of solid-state physics. Crystals are paragons of order; crystalline materials are defined by the repeating patterns their constituent atoms and ...

Optimal timings for city stoplights reduce drive time

Anyone who has ever driven a city street and been frustrated by having to stop again and again for red lights has probably thought that there must be a better way. Now, researchers at MIT have developed a means of computing ...

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