News Inventory

The Boltzmann Brain paradox is an argument against the idea that the universe around us, with its incredibly low-entropy early conditions and consequential arrow of time, is simply a statistical fluctuation within some eternal system that spends most of its time in thermal equilibrium. You can get a universe like ours that way, but you’re overwhelmingly more likely to get just a single galaxy, or a single planet, or even just a single brain — so the statistical-fluctuation idea seems to be ... Read More

THE baby is just one day old and has not yet left hospital. She is quiet but alert. Twenty centimetres from her face researchers have placed a white card with two black spots on it. She stares at it intently. A researcher removes the card and replaces it by another, this time with the spots differently spaced. As the cards alternate, her gaze starts to wander—until a third, with three black spots, is presented. Her gaze returns: she looks at it for ... Read More

A defining moment of the cold war came in 1955 when Moscow detonated its first hydrogen bomb — a weapon roughly a thousand times more powerful than atom bombs and ideal for obliterating large cities. The bomb ended the American monopoly and posed a lethal danger. So Washington dealt far more gingerly with Moscow, beginning a tense era dominated by fear of mutual annihilation. Now, a new book says Moscow acquired the secret of the hydrogen bomb not from its own scientists but from ... Read More

There was a lot to cheer about in the cleantech sector in 2008: record investment levels, a U.S. president-elect that supports clean power, and the extension of tax credits for renewables. But there were a lot of missed opportunities this year, too, as markets crashed, fundings were delayed and technologies hit hurdles. Below, the biggest cleantech disappointments of 2008 (next up, The 10 Biggest Cleantech Wins in 2008): 1) Tesla Hits A Wall: The embodiment of the future of electric vehicles discovered how ... Read More

KYANGJIN GOMPA, Nepal (AFP) – Standing in the Himalayan valley of Langtang, Rinjin Dorje Lama remembers where he used to play as a child in the 1960s. "When I was a kid, it was a lot longer," said Lama, pointing at the Lirung glacier surrounded by snowy peaks on Nepal's northern border with Tibet. "We used to play on the glacier, and it came right down to the monastery, but now it's about two kilometres (1.2 miles) further back." Temperatures in the Himalayas are rising ... Read More