The Top 5 Regrets of The Dying
Although scientists say this new method can’t find Earth-sized worlds using current technology, it offers astronomers a unique discovery opportunity. Unlike radial velocity searches, it doesn’t require high-precision spectra. Unlike transits, it doesn’t require a precise alignment of planet and star as seen from Earth.
Biofuels can provide energy without the reliance on environmentally harmful fossils fuels — but scientists are still searching for a plentiful source. Craig A. Kohn demonstrates how cellulose, the naturally abundant tough walls of plant cells, might be the solution.
An illegal number is a number that represents information which is illegal to possess, utter or propagate. Any piece of information is representable as a number, and therefore if the information itself is illegal in some way, the pure number itself may be illegal
We typically think of viruses as harmful. After all, they cause epidemics like influenza, smallpox and AIDS. But bacteriophages, the viruses that kill bacteria, may soon be coming to our rescue. Scientific American editor Anna Kuchment explains.
Cell phones are so many things now–computer, map, clock, calculator, camera, shopping device, concierge, and occasionally, a phone. But more than anything, that little device that never leaves your person is one amazingly prolific data engine.
A spectacular annular eclipse of the Sun was witnessed across Australia and the southern Pacific region early today. Morning dawned mostly clear across the Australian continent, and those who journeyed out to meet the antumbra of the Moon as the Sun rose across the Great Sandy Desert and the Cape York Peninsula were not disappointed. The rest of us watched worldwide on as Slooh and a scattering of other ad-hoc broadcasts delivered the celestial event to us via the web.
We are conscious of both more and less than affects our nervous system says philosopher Alva Noë.
The one feat even more difficult than throwing a fastball, though, might be hitting one. There’s a 100 millisecond delay between the moment your eyes see an object and the moment your brain registers it. As a result, when a batter sees a fastball flying by at 100 mph, it’s already moved an additional 12.5 feet by the time his or her brain has actually registered its location.
Boiling water at various altitudes on the trek from Lukla to Everest Base Camp.