Aquion Energy says its batteries could make the power grid unnecessary in some countries.
A novel manufacturing method could make it practical to stack solar cells and convert more of the energy in sunlight into electricity.
Technology is the primary cause of our skyrocketing health-care costs. It could also be the cure.
A startup that might have a record-breaking solar cell is in danger of going out of business.
As life has evolved, its complexity has increased exponentially, just like Moore’s law. Now geneticists have extrapolated this trend backwards and found that by this measure, life is older than the Earth itself.
A letter to John Stuart Mill about the limits of what may be shown or said on the Web.
A 19th-century idea might lead to cleaner cars, larger-scale renewable energy.
Japanese researchers build a gun capable of stopping speakers in mid-sentence.
If the cosmos is a numerical simulation, there ought to be clues in the spectrum of high energy cosmic rays, say theorists
Even with a terrible recession and a natural-gas bonanza, the U.S. isn’t cutting emissions fast enough.