No-battery lantern uses water and salt for light
New algorithm quickly identifies most dangerous risks in a power grid amid millions or billions of possible failures
Each summer, power grids are pushed to their limits, as homes and offices crank up the air conditioning in response to rising temperatures. A single failure in the system—such as a downed power line or ...
3-D models of electrical streamers: New work may be key to avoiding large-scale power outages
Streamers may be great for decorating a child's party, but in dielectrics, they are the primary origin of electric breakdown. They can cause catastrophic damage to electrical equipment, harm the surrounding ...
Better power grid synchronization may enable smart grids to self-recover from failures
US power grid costs rise, but service slips
America's power grid is like an old car. It gets the job done, even if its performance is slipping. But the repair bills go up every year and experts say only a major overhaul will reverse its decline.
Professor offers insight to recent Caribbean earthquakes
(Phys.org) —A 6.4-magnitude earthquake shook Puerto Rico Mon., Jan. 13. It caused some power outages and cracked floors, but no major damage or injuries were reported.
Satellite reveals new views of earth at night
(Phys.org)—Scientists unveiled today an unprecedented new look at our planet at night. A global composite image, constructed using cloud-free night images from a new NASA and National Oceanic and Atmospheric ...
'Third World' power outages plague US homes, firms
The United States is the biggest economy in the world, but all it takes to put the lights out here is some snow, or wind, or rain, or squirrels, even a prison break-out.
Nissan Leafs can now power the office, as well as the home
Nissan has carried out a successful early field test of a system that will allow companies to regulate their electricity bills using the batteries of Nissan LEAFs used by their staff to commute to work. "Vehicle-To-Building" ...
'Thinking machines' will run future power grids
(PhysOrg.com) -- Plans to develop the "smart" grid - a system that uses intelligent computer networks to manage electric power - cannot succeed without the creation of new "thinking machines" that can learn ...
Severe Space Weather
Did you know a solar flare can make your toilet stop working?
Fed survey: Winter storms holding back US economy (Update)
A Federal Reserve survey shows severe weather held back economic growth in much of the U.S. from January through early February. Even so, conditions strengthened in most regions, thanks to slight gains in areas such as employment ...
Cloud computing's ubiquity brings down prices
If you've ever had your laptop stolen, watched your toddler baptize your PC with Pepsi, or had your MacBook come to a cold, dead stop, you know that the digital memories we store on our home computers are anything but indelible.
Brazil blackouts result of cyber hacking: report
Massive power outages in Brazil in 2005 and 2007 that impacted millions were caused by cyber hackers attacking control systems, the US television network CBS said Sunday.