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UK scientists join race for lab-grown meat

UK scientists join race for lab-grown meat

Science
British scientists have joined the race to produce meat grown in the lab rather than reared on the hoof.Scientists at the University of Bath have grown animal cells on blades of grass, in a step towards cultured meat.If the process can be reproduced on an industrial scale, meat lovers might one day be tucking into a slaughter-free supply of "bacon".The researchers say the UK can move the field forward through its expertise in medicine and engineering.Lab-based meat products are not yet on sale, though a US company, Just, has said its chicken nuggets, grown from cells taken from the feather of chicken that is still alive, will soon be in a few restaurants.Chemical engineer Dr Marianne Ellis, of the University of Bath, sees culture...
Shaking aspen leaves inspire new energy harvesting device

Shaking aspen leaves inspire new energy harvesting device

Science
March 18 (UPI) -- Inspired by aspen leaves, which tremble in the slightest of breezes, scientists at the University of Warwick have developed a leaf-shaped energy harvester. Researchers suggest the device could power weather sensors in hostile environments, like those deployed by Martian rovers. "What's most appealing about this mechanism is that it provides a mechanical means of generating power without the use of bearings, which can cease to work in environments with extreme cold, heat, dust or sand," Sam Tucker Harvey, PhD engineering researcher at Warwick, said in a news release. "While the amount of potential power that could be generated is small, it would be more than enough to power autonomous electrical devices, such as those in wireless sensor networks." Harvey and his research...
US detects huge meteor explosion

US detects huge meteor explosion

Science
A huge fireball exploded in the Earth's atmosphere in December, according to Nasa.The blast was the second largest of its kind in 30 years, and the biggest since the fireball over Chelyabinsk in Russia six years ago.But it went largely unnoticed until now because it blew up over the Bering Sea, off Russia's Kamchatka Peninsula.The space rock exploded with 10 times the energy released by the Hiroshima atomic bomb.Lindley Johnson, planetary defence officer at Nasa, told BBC News a fireball this big is only expected about two or three times every 100 years. What do we know?At about noon local time on 18 December, the asteroid barrelled through the atmosphere at a speed of 32km/s, on a steep traject...
ULA launches 10th WGS comms satellite for U.S. military

ULA launches 10th WGS comms satellite for U.S. military

Science
March 15 (UPI) -- United Launch Alliance launched a communications satellite for the United States Air Force on Friday evening at 8:26 p.m. EST. ULA's Delta IV rocket had a successful launch and jettisoned its liquid rocket motors on time as it entered the atmosphere. Just a few minutes after liftoff, the first and second stages separated. The rocket's second stage executed a series of engine burns to properly position the payload. After a technical glitch delayed proceedings, ULA released a new liftoff target of 7:52 p.m. Just minutes later, ULA announced a problem with NASA's Tracking and Data Relay Satellite System "will delay liftoff beyond our new ... launch time." The sun is rising over the #DeltaIV with #WGS10 on the launch pad this morning. Liftoff planned for today, March 15 at ...
UK's air-breathing rocket engine set for key tests

UK's air-breathing rocket engine set for key tests

Science
The UK project to develop a hypersonic engine that could take a plane from London to Sydney in about four hours is set for a key demonstration. The Sabre engine is part jet, part rocket, and relies on a novel pre-cooler heat-exchanger technology. This pre-cooler system will begin a new phase of testing in the next month or so in Colorado, US.Meanwhile, the core part of the engine has just gone through its preliminary design review.Signed off by experts at the European Space Agency, the review sets the stage for this central section of Sabre to begin its own demonstration campaign at Wescott Space Cluster in Buckinghamshire next year. The company behind the project, React...