Scientists working at Columbia University’s School of Engineering and Applied Science report the development of the world’s first
The post Single-Molecule Diode Brings Scientists Closer to New Generation of Nano-Scale Devices has been published on Technology Org.
MIT's biomimetic robotics lab, which last year developed a free-running untethered cheetah robot capable of bounding along at 10mph, has now created a new version—Cheetah 2—that can autonomously jump over hurdles.
These aren't just token hurdles, either: the current version of the robot can clear obstacles that are up to 45 centimetres (18 inches) tall, while maintaining a steady speed of 5mph (8kph). 45 centimetres is about half the height of the robot.
While untethered jumping is already quite an achievement for a biomimetic robot, the way in which Cheetah 2 does it is even more impressive. There isn't a human pushing a "jump" button; Cheetah 2 is autonomous. Using on-board LIDAR, the robot can detect obstacles, estimate the distance to the object and how tall it is, and then adjust its stride so that it's perfectly placed to jump over.
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This magnificent spiral galaxy is at the edge of what astronomers call the Local Void. The Local Void is a huge volume of space that is at least 150 million light-years across that doesn't seen to contain anything much. There are no obvious galaxies. This void is simply part of the structure of the universe where matter grows clumpy over time so that galaxies form clusters and chains, which are separated by regions mostly devoid of galaxies. This results in sort of a "soap bubble" structure on large scales. The galaxy, as photographed by NASA's Hubble Space Telescope, is especially colorful where bright red patches of gas can be seen scattered through its spiral arms. Bright blue regions contain newly forming stars. Dark brown dust lanes snake across the galaxy's bright arms and center, giving it a mottled appearance.
Developed by researchers at the University of Texas, Austin, the new membrane-free semi-liquid battery, consisting of a liquid
The post Semi-Liquid Battery Almost as Good as its Lithium Ion Counterparts and Supercapacitators has been published on Technology Org.
