A rocket engine concept developed by the UK's Reaction Engines draws in atmospheric oxygen plus liquid hydrogen to accelerate past Mach 5. Now the US Air Force is studying the system as a new way to reach space.
Bell Helicopter has unveiled its V-247 Vigilant tiltrotor drone, demonstrating the aircraft's folding wing capability. The company has identified the Marine Corps as a potential customer.
The smartphone security provided by fingerprint and iris scanners could be applied to other devices with a new system developed at the University of Washington. It uses magnetic fields to transmit ID data through a user's body, thus avoiding the possible security breach posed by wireless signals.
Blood vessels made from fibroblasts and fibrin grew in sync with the three lambs into which the vessels were transplanted, replacing part of the lambs' pulmonary arteries, scientists reported in Nature Communications. If bioengineered arteries can be made from human cells and behave similarly, children with congenital heart defects might be able to forgo multiple open-heart surgeries, study coauthor Robert Tranquillo said.
The methods applied to building tall suspension bridges may soon be used for wind turbines, allowing their towers to exceed the current height limit of 262 feet. The Hexcrete system that researchers are working on at Iowa State University would open the way for turbine towers to access the richer energy sources of stronger, steadier winds above 330 feet.
A team of researchers from the Technion-Israel Institute of Technology successfully tested a simulated pipeline to replace sea water in the Dead Sea. The sea is losing water because much of the Jordan River is diverted for farming, and the sea water loss is the suspected cause of sinkholes in the region.
SpaceX's new Raptor rocket engine to power interplanetary travel was successfully test-fired Monday. The engine will be part of a reusable rocket and the company's newly dubbed Interplanetary Transport System, which Elon Musk says is capable of carrying out missions beyond Mars.
Electrically powered aircraft are making some advances but are held back by battery weight, a problem Luke Workman believes he can solve with a new design that could power even supersonic airliners. The solution comes in the form of a lightweight battery with a vast surface area -- as big as the wings of a supersonic plane, for instance -- used as an electrode plate.
Komatsu Ltd.'s new 2,700-horsepower innovative Autonomous Haulage Vehicle takes the human driver completely out of the picture, eliminating the cab to allow for better cargo weight distribution. The mining truck operates identically in both directions, eliminating the need for three-point turns and saving fuel and tire wear.
The world now has another ear listening for signs of faraway alien life with the opening Sunday of the world's largest radio telescope in southwestern China. The 1,640-foot Aperture Spherical Radio Telescope boasts twice the sensitivity of the previous record-holder, the Arecibo Observatory in Puerto Rico.
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