Science news articles about 'watt light bulb'

Philips has the first entry in an Energy Department contest to build a more efficient 60-watt light bulb.

... optical output as a hundred-watt light bulb. If a high light output is required, however, ... edges, but has a sharply defined edge.” This channeling of light is based on a free-form system of optics – ...

... (.52 Tera-ops/sec) while using less power than a 7-watt light bulb. "A battery powering this chip will typically last from several times to 75 times longer than it would under the ...

... nebula in the Virgo Cluster is as faint as that from a 30-Watt light bulb at a distance of about 6 million kilometres (about 15 times the Earth–Moon distance). Furthermore, planetary ...

... utilization, the cluster operates on less energy than a 100-watt light bulb. The research team, led by David Andersen, Carnegie Mellon assistant professor of computer science, and ...