18/04/2013

Puma tracking reveals impact of habitat fragmentation

(Phys.org) —In the first published results of more than three years of tracking mountain lions in the Santa Cruz Mountains, UC Santa Cruz researchers document how human development affects the predators' habits.

Toward the origin of America's first settlers

The most supported traditional hypothesis points out that the earliest well-established human culture in the North American continent were the Clovis, a population of hunters who arrived about 13,000 years before present ...

Novel analysis method levels the quasar playing field

(Phys.org) —In the nearly six decades since quasars were discovered, the list of these energetic galaxies powered by supermassive black holes has grown to more than 100,000 – enough examples to reveal important information ...

Verizon rakes in wireless fees in 1Q

Verizon says its profit rose 16 percent in the latest quarter as revenue from wireless service kept rising at a rate that's the envy of the industry.

Battery low? Give your mobile some water

A power source for your mobile phone can now be as close as the nearest tap, stream, or even a puddle, with the world's first water-activated charging device.

Did diamonds begin on the ancient ocean floor?

(Phys.org) —Geology professor Dan Schulze calls this singular gem from the remote Guaniamo region of Venezuela the "Picasso" diamond. The blue luminescent, high-resolution image of a diamond formed over a billion years ...

Basic science in evaporating droplets

What happens if you slowly evaporate a droplet containing dissolved particles? The question sounds simple, but it involves a surprising amount of basic physics and mathematics. Hanneke Gelderblom of the University of Twente ...

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