Wind turbines deliver environmentally friendly electricity. Yet the fiber-reinforced plastics often used in very large rotor blades are almost impossible to recycle. Not so with steel blades: since these are composed of steel, their recyclability exceeds 90 percent. Plus they cost significantly less than comparable plastic blades.
Graphene, the ultra-thin, ultra-strong material made from a single layer of carbon atoms, just got a little more extreme. Physicists have been able to create the first ever superconducting graphene sample by coating it with lithium atoms.
A detailed nano-mechanical study of mechanical degradation processes in silicon structures containing varying levels of lithium ions offers good news for researchers attempting to develop reliable next-generation rechargeable batteries using silicon-based electrodes.
The first lithium-ion battery has been developed that shuts down before overheating, then restarts immediately when the temperature cools. The new technology could prevent the kind of fires that have prompted recalls and bans on a wide range of battery-powered devices, from computers to hoverboards.
adminMale moths locate females by navigating along the latter’s pheromone (odor) plume. Two strategies are involved: males must find the outer envelope of the pheromone plume, and then head upwind. Can understanding such insect behavior be useful for robotics research? Yes, according to an entomologist, whose research using computer simulations shows that such insect behavior has implications for airborne robots (drones) that ply the sky searching for signature odors.
Scientists develop lithium-ion batteries with clay-based electrolytes for high-temperature environments.
Suzanne JacobsThe modern-day “hacker,” as portrayed in popular culture, is a human subspecies native to basements, back rooms, and warehouses. They often sport multiple piercings and complicated hairstyles. They tend to wear perpetual looks of disdain and, indifferent toward mental or physical health, feed on fast food and vending machine fare — a peculiar preference, given the inconvenience of sticky fingers on keyboards. But this stereotype might be changing, the Wall Street Journal reports, because just as the hackers of yore co-evolved with the internet boom, there’s a new kind of hacker co-evolving with the biotech boom. Sebastian Cocioba, a 25-year-old resident of Queens, NY, is one such “biohacker.” Here’s more from the Wall Street Journal: Born into…
