Brain surrounded by pus (the yellow-greyish coat around the brain, under the dura lifted by the forceps), the result of bacterial meningitis. A brain autopsy demonstrating signs of meningitis. The forceps (center) are retracting the dura mater (white). Underneath the dura mater are the leptomeninges, which appear to be edematous and have multiple small hemorrhagic foci(red).
Saturday, November 16, 2013
Disc of Destiny: New optical techniques could preserve data for millennia.
Messages are stored as two types of alterations in the way quartz glass refracts light. The combination of the two allows for data-storage densities as high as 360 terabytes per disc, or more than 7000 times today’s 50-gigabyte double-layer Blu-ray capacity.
As cool as quadrotors are, in most cases they're simply not as good as helicopters. So researchers came up with a "Y4" configuration that aims to take all the good bits of helicopters and make them as simple as quadrotors. Keep in mind that this is still a quadrotor: it just had things shifted around a little bit.
The new robot, Papero Petit, stands 24 centimeters (9.4 inches) tall and weighs 1.3 kg (2.8 lbs)—about half the size of earlier models. It combines multiple sensors (cameras, ultrasonic range finders, temperature sensor, and microphones) to detect people and look in their direction even in complete darkness. The robot can recognize faces and has between 80 to 90 percent success rate at speech recognition.
More photos and details http://bit.ly/HUKz7H