En los medios

Physicists engage in a strange debate about whether time really passes

En 1979, un tren japonés superó los 500 km/h durante un recorrido de prueba. ¿Cómo fue posible esta proeza hace ya 35 años? Se trataba de un maglev, es decir, de un transporte de levitación magnética que utiliza electroimanes basados en un principio cuántico: la superconductividad. Gracias a ella el vehículo flota sobre la vía, por lo que se elimina la fricción, aunque requiere tanta energía que estos trenes no están muy extendidos.

On a small hill in the heart of Cambridge, Massachusetts, 170 tons of glass, imprinted with history, sit in a dimly lit corner. Each rectangular plate is about the size of a sheet of paper and, with the exception of black ink spots, the collection is surprisingly clear, especially when you consider that some date as far back as 1885. A casual eye might easily mistake one of the 500,000 photographic plates for nothing more than a dirt-specked piece of glass.

Steel mill workers facing dangerous sparks could soon benefit from a heat-resistant spacesuit fabric that protects astronauts during spacewalks.

After a year in which further details of national intelligence agencies’ shadowy surveillance networks were laid bare, a fresh leak of documents reveals the obsessive surveillance that extends as far north as Lapland…

La producción de sulfuro de hidrógeno, que se aumenta con la restricción calórica, tiene un efecto protector sobre partes fundamentales de la célula

Driven by a growing environmental movement and mounting pressure from Western consumers, corporate and government leaders are making a new push to slow the cutting of rain forests.

Científicos del CNIO han descubierto en ratones que los macrófagos activan el crecimiento de las células madre de la piel. El hallazgo, publicado en la revista PLOS Biology, podría aportar nuevos enfoques para tratar la pérdida de cabello y estudiar las causas del cáncer de piel.

Startup Seeo has developed batteries that store far more energy than conventional ones, which could extend the range of electric cars.

This bird might look like a holiday ornament, but it is actually a rare half-female, half-male northern cardinal (Cardinalis cardinalis, pictured with female plumage on the left and male plumage on the right) spotted a few years ago in Rock Island, Illinois