A new optical device made of silicon “nanopillars” could lead to advanced microscopes, displays, sensors, and cameras that can be mass-produced using the same techniques used to manufacture computer microchips.
Scientists have discovered concrete-like rock in a dormant volcano in Italy, and say it may explain why the Romans were able to invent the legendary compound used to construct the Pantheon and the Coliseum.
Growing carefully chosen plants like agave amid photovoltaic panels could allow solar farms to not only collect sunlight for electricity but also to produce crops for biofuels, new computer models suggest.