Software can transform a computer from a word processor to a number cruncher to a video telephone. But the underlying hardware is unchanged. Now, a type of transistor that can be switched with magnetism instead of electricity could make circuitry malleable too, leading to more efficient and reliable gadgets, from smart phones to satellites.
Geological detectives are piecing together an intriguing seafloor puzzle. The Indian Ocean and some of its islands, scientists say, may lie on top of the remains of an ancient continent pulled apart by plate tectonics between 50 million and 100 million years ago. Painstaking detective work involving gravity mapping, rock analysis, and plate movement reconstruction…
Linguists know that languages change drastically over the course of a few thousand years, so drastically that there’s no telling what the original human language was like or how it came into being. Language consists of words, not rocks, so there are no linguistic fossils comparable to the fossils in rock that reveal ancient stages…
A U.S. federal court of appeals upheld the right of environmental regulators to curb harmful carbon emissions via clean car standards and limit industrial pollution from new power plants. The court rejected a series of lawsuits that had been filed against the Environmental Protection Agency (EPA) by the Coalition for Responsible Regulation, which included coal,…
What if factors other than climate, like the food available nearby or the viruses, bacteria, and parasites native to the area, had an effect on various human populations’ genetic toolkits? It’s a fascinating question, but, given that we have to reconstruct all this supposed evolution from the current state of modern genomes, finding an answer…
Graphene – the “wonder material” made of sheets of carbon just one atom thick – undergoes a self-repairing process to correct holes, researchers report. Graphene’s outstanding mechanical strength and electronic properties make it a promising material for a wide range of future applications. But its almost ethereal thinness makes it easily damaged when working with…
A new way to find a star’s age can give clues to how our Milky Way galaxy built itself up over billions of years from smaller galaxies, a U.S. astronomer says. Using a new technique, Jason Kalirai of the Space Telescope Science Institute in Baltimore has examined the burned-out relics of sun-like stars, called white…