Jumat, 02 Maret 2012

Generating power from salty water: Unique salt allows energy production to move inland



Posted: 01 Mar 2012 11:37 AM PST
Production of energy from the difference between salt water and fresh water is most convenient near the oceans, but now, using an ammonium bicarbonate salt solution, researchers can combine bacterial degradation of waste water with energy extracted from the salt-water fresh-water gradient to produce power anywhere.
Posted: 29 Feb 2012 07:51 AM PST
Using exotic man-made materials, scientists believe they can greatly enhance the forces of electromagnetism, one of the four fundamental forces of nature, without harming living beings or damaging electrical equipment.

Kamis, 01 Maret 2012

The 10,000-RPM, No-Pulse Heart

The 10,000-RPM, No-Pulse Heart View this email online


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SCIENCE
No Pulse: How Doctors Reinvented The Human Heart
This 10,000-rpm, no-pulse artificial heart doesn't resemble an organic heart--and might be all the better for it
[read full story]
This Week's Top Photo Galleries
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Images of the Week, February 20-24, 2012
None of us will ever be as happy as this Chinese boy going to ChompTown on some strawberries
Photo Gal - image
Gallery: The Six Places on Earth That Most Resemble Other Planets
The most otherworldly (literally!) places on the planet

What's Hot 1 Image
REVIEWS
Lytro Light-Field Camera Review: Shoot, Then Focus
Lytro's promise of post-shot refocusing is unlike anything we've ever seen--but does it live up to expectations?
[Read full story]
What's Hot 3 Image TECHNOLOGY
Under the Sea: In the Age of Wireless, Can't We Do Better than Intercontinental Fiber Optic Cables?
This week's outage in Africa reminds us of the vulnerable physicality of the Internet
[Read full story]
What's Hot 4 Image STAR TALK
PopSci Talks To Neil deGrasse Tyson About Politics, New Frontiers, and Science Evangelism
Tyson's book "Space Chronicles: Facing the Ultimate Frontier" is out today
[Read full story]
  

Finding a potent new energy source by listening for Earth's gas bubbles?




Posted: 29 Feb 2012 11:21 AM PST
What if we could cheaply and efficiently detect a potent new energy source, while also monitoring for environmental safety? Physicists are using the symphony of sound produced in the ocean to do just that.

Rabu, 29 Februari 2012

Developing sustainable power



Posted: 28 Feb 2012 09:39 AM PST
Scientists suggest that renewable energy is a viable option for electrical power in developing and emerging nations. Researchers point out that in most of these nations, the demand for energy far exceeds the generating capacity.

Selasa, 28 Februari 2012

Reduction in U.S. carbon emissions attributed to cheaper natural gas



Lower emission from power plants in 2009 was driven by competitive pricing of natural gas versus coal, researchers say.

Jumat, 24 Februari 2012

ScienceDaily: Energy Technology News

ScienceDaily: Energy Technology News


Replacing electricity with light: First physical 'metatronic' circuit created

Posted: 23 Feb 2012 03:38 PM PST

The technological world of the 21st century owes a tremendous amount to advances in electrical engineering, specifically, the ability to finely control the flow of electrical charges using increasingly small and complicated circuits. And while those electrical advances continue to race ahead, researchers are pushing circuitry forward in a different way, by replacing electricity with light.

More powerful electric cars: Mechanism behind capacitor's high-speed energy storage discovered

Posted: 23 Feb 2012 03:26 PM PST

Researchers have discovered the means by which a polymer known as PVDF enables capacitors to store and release large amounts of energy quickly. Their findings could lead to much more powerful and efficient electric cars.

Aircraft of the future could capture and re-use some of their own power

Posted: 23 Feb 2012 10:33 AM PST

Tomorrow's aircraft could contribute to their power needs by harnessing energy from the wheel rotation of their landing gear to generate electricity. They could use this to power their taxiing to and from airport buildings, reducing the need to use their jet engines. This would save on aviation fuel, cut emissions and reduce noise pollution at airports.

Energy harvesting: Wringing more energy out of everyday motions

Posted: 21 Feb 2012 12:14 PM PST

Randomness and chaos in nature, as it turns out, can be a good thing -- especially when trying to harvest energy from the movements of everyday activities. Engineers believe they have come up with the theoretical underpinning that could lead to the development of energy harvesting devices that are not only more versatile than those in use today, but should be able to wring out more electricity from the motions of life.

Kamis, 23 Februari 2012

How to Take a Picture of a Black Hole

How to Take a Picture of a Black Hole View this email online
POPSCI.COM NEWSLETTER
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TECHNOLOGY
How to Take a Picture of a Black Hole
First, build a telescope the size of planet Earth
[read full story]

This Week's Top Photo Galleries
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Gallery: The Most Incredible Toys We Saw At The Toy Fair
iPhone laser tag, this hard-partying DiscoRobo, and more Toy Fair highlights

Photo Gal - image

Images of the Week, February 13-17, 2012
Tiniest chameleon, please be our friend

Photo Gal - image

Archive Gallery: The Rise of Video Games
Electronic gaming sure has come a long way since we dismissed it as a "novelty"

+ Photo Galleries

What's Hot 1 Image
REVIEWS
Sony PlayStation Vita Review: Full-Power Gaming, Portable Package
It's the most powerful handheld console ever made. But is it enough to get you to put down your iPhone?
[Read full story]

What's Hot 2 Image OLD TIME RADIO
The Best Science Podcasts for the Enjoyment of Your Ears and Brain
Science, technology, comedy, and the confluence of all three, in downloadable audio form
[Read full story]

What's Hot 3 Image EYEWEAR
The World Through Google's Smartglasses
Augmented-reality eyewear is the next step toward a future in which we never again have an unmediated view of the world
[Read full story]

What's Hot 4 Image DRUGS
A Wirelessly Controlled Pharmacy Dispenses Drugs From Within Your Abdomen
Future pharmacies will be inside our bodies
[Read full story]


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