En los medios

Great tits are opportunistic copycats. Entire populations can be found performing the same arbitrary behaviour simply because birds copy one another, following a fashion. And it’s this behaviour, reported in a paper published in Nature, that explains the great milk bottle raids that baffled milk drinkers in Britain almost a century ago.

For more than a decade scientists have been at a loss to explain why there are fewer stars than they predicted

Shell markings are the oldest abstract signs ever discovered.

Haustura hidraulikoa erabilita erauztea espero zuten gas-kantitatea berez ez dela hain handia erakutsi du Nature aldizkariak egindako azterketa batek. Hain zuzen, Estatu Batuetako energiari buruzko informazio-sailaren (EIA) aurreikuspenak eta Texasko Unibertsitearenak alderatu ditu Naturek, eta ondorioztatu du EIAren aurreikuspenak puztuta daudela.

Head direction cells in the bat hippocampus encode three-dimensional representations of space

La luz intermitente que emiten los púlsares, los relojes más precisos del universo, sirve a los científicos para verificar la teoría de la relatividad de Einstein, sobre todo cuando estos objetos se emparejan con otra estrella de neutrones o una enana blanca e interfiere su gravedad. Pero esta teoría se podría analizar mucho mejor si se encontrara un púlsar con un agujero negro, salvo en dos casos puntuales, según informan investigadores de España y la India.

People have infrared vision — and it could be the result of pairs of photons combining their energies to appear as one ‘visible’ photon.

Un sistema desarrollado por Intel permite al científico transmitir sus pensamientos más rápido y realizar tareas cotidianas en la décima parte de tiempo

Just after Christmas of 1938, a young woman named Marguerite Perey — then 29, with a plain, open face, her eyes intent upon her work — sat at a bench in the Radium Institute of Paris, a brick mansion near the Jardin du Luxembourg. In a glass vessel, she examined fluid containing metal salts. She carefully dosed it with lead and hydrogen sulfide, then with barium, causing the solution to separate into different substances. She was in the final stages of purifying actinium, one of the rarest and most dangerous elements yet discovered, from uranium ore. Ten tons of ore yielded just one or two milligrams of actinium; Perey, who joined the institute as a teenager to be the personal technician for Marie Curie, was an expert in its isolation.

It was November 24, 1974, around noon, and Donald Johanson, a 31-year-old associate professor of anthropology at Case Western Reserve University, had just spotted an elbow in Ethiopia. “Oh my God,” he thought as his eyes moved up the slope. One by one, he recognized a thigh bone, a skull and a piece of jaw that still had teeth in it. The scientist had just discovered a 3.2 million-year-old fossil who would come to be known as Lucy.