April 4, 2012
More than a thousand known asteroids are classed as “potentially hazardous,” based on size and trajectory, says astronomer Neil deGrasse Tyson in Wired Science.
Currently, it looks doable to develop an early-warning and defense system that could protect the human species from impactors larger than a kilometer wide. … Smaller ones, which reflect much less light and are therefore much harder to detect at great distances, carry enough energy to incinerate entire… read more
November 25, 2013
“Los Alamos’ RAPTOR telescopes in New Mexico and Hawaii received a very bright cosmic birth announcement for a black hole on April 27,” said astrophysicist Tom Vestrand, lead author of a paper n the journal Science Nov. 21 that highlights the unusual event.
“This was the burst of the century,” said Los Alamos co-author James Wren. “It’s the biggest, brightest one to happen in at least 20 years, and… read more
December 22, 2014
New UCLA research indicates that lost memories can be restored, offering hope for patients in the early stages of Alzheimer’s disease.
For decades, most neuroscientists have believed that memories are stored at the synapses — the connections between brain cells, or neurons — which are destroyed by Alzheimer’s disease. The new study provides evidence contradicting the idea that long-term memory is stored at synapses.
“Long-term memory is not… read more
October 8, 2012
How effective are systems that warn a driver about an impending front collision, then slam on the brakes if the driver doesn’t act quickly enough?
A lot, says a paper recently published in IEEE Transactions on Intelligent Transportation Systems, IEEE Spectrum Tech Talk reports.
January 15, 2013
The approach relies on engineered materials consisting of nanostructured semiconductor alloy crystals.
Heat is a vibration of matter — technically, a vibration of the atomic lattice of a material — just as sound… read more
October 22, 2012
Cosmo Wenman is a California artist who has just reminded us not to limit our imaginations when it comes to what can be made, MakerBot Blog reports.
“We believe so strongly in the potential of the… read more
August 22, 2013
Regular graphene is a two-dimensional form of carbon. Yun Hang Hu, the Charles and Caroll McArthur Professor of Materials Science and Engineering at MTU, and his team invented a way to synthesize a 3D version, with a honeycomb-like structure.
The 3D graphene had excellent conductivity and high… read more
March 9, 2012
Give NASA the money it needs, he argues, and the agency will stimulate the economy and inspire students to pursue innovative, ambitious projects. (Say, for example, a way to thwart a wayward asteroid that could… read more
December 22, 2013
In response to a question, “What are the practical applications of cryogenics today, and what potential improvements can we expect 20 to 30 years down the line?” Michio Kaku, PhD, replied with a critique.
June 29, 2011
Markus Kaiser’s solar sintering project explores the potential of desert manufacturing, where energy and material occur in abundance.
In this experiment, sunlight and sand are used as raw energy and material to produce glass objects using a 3D printing process, combining natural energy and material with high-tech production technology.
His work with solar-sintering aims to raise questions about the future of manufacturing and the use of solar energy.… read more
February 21, 2013
The PlayStation 4, as you’d expect for a seven-years-later follow-up, has impressively bumped specs. An eight-core X86 AMD “Jaguar” CPU and a 1.84 Teraflop AMD Radeon graphics engine (with “18 compute units”) comprise the central processing on the PS4, CNET reports.
There’s also 8GB of fast GDDR5 memory. The PS4 will use a hard drive for storage versus an SSD, but the included capacity in the box… read more
March 4, 2012
The Earth has a roughly 12 percent chance of experiencing an enormous megaflare erupting from the sun in the next decade, according to space physicist Pete Riley, senior scientist at Predictive Science in San Diego, California, writing n Space Weather on Feb. 23.