Potatoes were fried in oil aboard a parabolic flight that simulates microgravity. See how steam bubbles react. Credit: ESA ...

India’s buying of solar photovoltaic (PV) cells from China went up by 141%. This big rise is likely because India is now ...

This letter presents a novel and retractable ring-shaped quadrotor called Ring-Rotor that can adjust the vehicle's length and width simultaneously. Unlike other morphing quadrotors with high platform ...