Image: Solar Electric Propulsion engine's ionizing Hall thruster
Engineers at NASA's Glenn Research Center are advancing the propulsion system that will propel the first ever mission to redirect an asteroid for astronauts to explore in the 2020s. NASA's Asteroid Redirect ...
Adding renewable energy to power grid requires flexibility
Solar panels, wind turbines, electric vehicles and other green power sources are proliferating rapidly, but their reliable integration into the existing electric grid is another story.
Reliable systems for recharging electric vehicles
The success of electric vehicle networks depends on economical vehicles – and efficient power grids. Existing power lines were not designed for the loads generated by electric vehicles. Fraunhofer researchers ...
Latin America divided between oil and green energy
Latin America spends billions of dollars subsidizing fossil fuels each year, but also has some of the world's largest renewable power programs, highlighting the energy-hungry region's divisions as it charts ...
Amazon Japan starts selling electric cars
First it was books, then household products; now you can buy an electric car from online shopping giant Amazon.
Green energy investments worldwide surge 17 percent to $270 billion in 2014
Global investments in renewable energy rebounded strongly last year, registering a solid 17% increase after two years of declines and brushing aside the challenge from sharply lower crude oil prices.
How to make a profit from rotting garbage
Landfills can make a profit from all their rotting waste and a new patent explains exactly how to make the most out of the stinky garbage sites.
Turning back time by controlling magnetic interactions
In many materials, macroscopic magnetic properties emerge when microscopically small magnets align in a fixed pattern throughout the whole solid. In a publication in Nature Communications, Johan Mentink, Karste ...
Engineering students use sound waves to put out fires
Engineers create structures tougher than bulletproof vests
Researchers at UT Dallas have created new structures that exploit the electromechanical properties of specific nanofibers to stretch to up to seven times their length, while remaining tougher than Kevlar.
Behind the dogmas of good old hydrodynamics
A new theory, which gives insights into the transport of liquid flowing along the surface under an applied electric field, was developed by a group of Russian scientists lead by Olga Vinogradova who is a ...
Novel plastic could spur new green energy applications, 'artificial muscles'
A plastic used in filters and tubing has an unusual trait: It can produce electricity when pulled or pressed. This ability has been used in small ways, but now researchers are coaxing fibers of the material ...
Intermittently delivered pulsed electric fields technology could replace boiling and refrigeration of milk
Milk is a key element for household food security and provides a stable income to farmers including women, who are usually in charge of taking care of the milk-producing animals in the low-income countries. ...
Smog-choked Paris forces half of cars off roads
French authorities will on Monday put in place emergency traffic-limiting measures in Paris, as the City of Light and much of northern France suffers from a choking smog.