March of the microscopic robots

Building robots at the micron scale is tricky, particularly when it comes to designing small-scale ‘actuators’ – the motors that allow robots to move. Conventional actuators don’t work at such a small scale, and new actuators that do work use mechanisms like magnetism and are difficult to integrate with traditional silicon based micro-electronics. Now a […]

Looking for Life on Mars | NOVA | PBS

Follow along as NASA launches the Mars 2020 Mission, perhaps the most ambitious hunt yet for signs of ancient life on Mars. The spacecraft will blaze into the Martian atmosphere at some 12,000 miles per hour and attempt to lower the Perseverance Rover in the rocky Jezero Crater, home to a dried-up river delta scientists […]

Ted Turner On Overpopulation

TED TURNER: Not doing it will be catastrophic. We’ll be eight degrees hotter in ten, not ten but 30 or 40 years and basically none of the crops will grow. Most of the people will have died and the rest of us will be cannibals. Civilization will have broken down. The few people left will […]