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Showing posts from September, 2016

Flying Commuter Jettison Craft Type To Exist Soon

Passenger jets and drones are not the only vehicles that will need to talk to each other in the none-too-far-off future. Though flight-minded laymen still have not seen a Jetsons-like age arrive, the personal air commute is, at least, closer than it was before. Jet pack ideas abound, (such as the Martin Jetpack and Marc Newson’s “Body Jet”) and  flying cars  are on the make (for example, Terrafugia and Moller International’s Skycar). Sure, the morning commute is not likely to crowd the sky the way it does our streets anytime soon. However, if the air is thick with nine-to-fivers, there will have to be some traffic system in place. Current air-traffic control is not designed to handle localized takeoffs and landings. But, just as vehicle-to-vehicle communication is soon to keep automatic cars from colliding, aircraft-to-aircraft interaction is soon to make the man in manned aircraft a little less necessary. Congress has ordered the FAA to pave the way—legally and technically—for un

MIT AEROSPACE ENGINEERS INVENT CARBON NANO -STITCHES FOR COMPOSITE MATERIALS " CONTD"

The researchers fastened the layers of composite materials together using carbon nanotubes — atom-thin rolls of carbon that, despite their microscopic stature, are incredibly strong. They embedded tiny “forests” of carbon nanotubes within a glue-like polymer matrix, then pressed the matrix between layers of carbon fiber composites. The nanotubes, resembling tiny, vertically-aligned stitches, worked themselves within the crevices of each composite layer, serving as a scaffold to hold the layers together. In experiments to test the material’s strength, the team found that, compared with existing composite materials, the stitched composites were 30 percent stronger, withstanding greater forces before breaking apart. Roberto Guzman, who led the work as an MIT postdoc in the Department of Aeronautics and Astronautics (AeroAstro), says the improvement may lead to stronger, lighter airplane parts — particularly those that require nails or bolts, which can crack conventional composites.

MIT AEROSPACE ENGINEERS INVENTED NEW NANOSTITCHES FOR COMPOSITE MATERIALS

MIT Aerospace Engineers Develop Carbon Nanotube “Stitches” to Strengthen Composites August 8, 2016 Technology MIT aerospace engineers have found a way to bond composite layers, producing a material that is substantially stronger and more resistant to damage than other advanced composites. The improvement may lead to stronger, lighter airplane parts. Using carbon nanotube “stitches,” aerospace engineers from MIT have found a way to strengthen composites, helping make airplane frames lighter and more damage-resistant. The newest Airbus and Boeing passenger jets flying today are made primarily from advanced composite materials such as carbon fiber reinforced plastic — extremely light, durable materials that reduce the overall weight of the plane by as much as 20 percent compared to aluminum-bodied planes. Such lightweight airframes translate directly to fuel savings, which is a major point in advanced composites’ favor. But composite materials are also surprisingly vuln

Mar curiosity Robot ,inspect rock layers

NASA’s Curiosity Rover Views Layered Rock Formations September 13, 2016 The layered geologic past of Mars is revealed in stunning detail in new color images from NASA’s Curiosity Mars Rover, which is currently exploring the “Murray Buttes” region of lower Mount Sharp. Curiosity took the images with its Mast Camera (Mastcam) on September 8. The rover team plans to assemble several large, color mosaics from the multitude of images taken at this location in the near future. “Curiosity’s science team has been just thrilled to go on this road trip through a bit of the American desert Southwest on Mars,” said Curiosity Project Scientist Ashwin Vasavada, of NASA’s Jet Propulsion Laboratory, Pasadena, California. The Martian buttes and mesas rising above the surface are eroded remnants of ancient sandstone that originated when winds deposited sand after lower Mount Sharp had formed. “Studying these buttes up close has given us a better understanding of ancient sand dunes that forme