Selasa, 15 Mei 2012

ScienceDaily: Energy Technology News

ScienceDaily: Energy Technology News

Dip chip technology tests toxicity on the go

Posted: 14 May 2012 10:42 AM PDT

Researchers have developed a portable "dip chip" that detects water toxicity quickly and accurately. Once perfected, the chip might be plugged into ordinary smartphones or PDA devices to provide a toxicity alert.

Scientists generate electricity from viruses

Posted: 13 May 2012 11:46 AM PDT

Scientists have developed a way to generate power using harmless viruses that convert mechanical energy into electricity. The scientists tested their approach by creating a generator that produces enough current to operate a small liquid-crystal display. Their generator is the first to produce electricity by harnessing the piezoelectric properties of a biological material.
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Sabtu, 12 Mei 2012

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ScienceDaily: Energy Technology News

ScienceDaily: Energy Technology News

Photonics: New approach to generating terahertz radiation will lead to new imaging and sensing applications

Posted: 10 May 2012 06:56 AM PDT

A new approach to generating terahertz radiation will lead to new imaging and sensing applications. The low energy of the radiation means that it can pass through materials that are otherwise opaque, opening up uses in imaging and sensing — for example, in new security scanners. In practice, however, applications have been difficult to implement.

Technique keeps cool high-power semiconductor devices used in wireless applications, traffic lights and electric cars

Posted: 08 May 2012 12:21 PM PDT

Engineers have developed a technique to keep cool a semiconductor material used in everything from traffic lights to electric cars.
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Jumat, 11 Mei 2012

ScienceDaily: Energy Technology News

ScienceDaily: Energy Technology News

Solar power to dye for: Flexible lightweight inexpensive dyes could harvest energy from sun

Posted: 10 May 2012 08:37 AM PDT

Flexible, lightweight and inexpensive dyes could be used to harvest the power of the sun rather than our relying on costly and fragile semiconductor solar panel that use crystalline silicon, new research suggests.

Optimal planning of solar power plants

Posted: 10 May 2012 07:00 AM PDT

The photovoltaics industry is booming, and the market for solar farms is growing quickly all over the world. Yet, the task of planning PV power plants to make them as effi cient as possible is far from trivial. Researchers have now developed software that simplifies conceptual design.
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Kamis, 10 Mei 2012

Do You "Possess" What You View Online?

Do You "Possess" What You View Online? View this email online
POPSCI.COM NEWSLETTER
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TECHNOLOGY
Do You "Possess" What You View Online?
The New York Court of Appeals just ruled that "viewing" child porn online is not the same as "possessing" it. But is the idea of "possessing" a digital file outdated?
[read full story]

This Week's Top Photo Galleries
Photo Gal - image

The Goods: May 2012's Hottest Gadgets
A dozen great ideas in gear

Photo Gal - image

The Most Amazing Science Images of the Week, April 30-May 4, 2012
This massive crab, plus beautiful space pics, a cute monkey, a motorcycle that crossed the Pacific, and more

Photo Gal - image

Archive Gallery: Popular Science Plays Pranks
Practical jokes, from invisible ink to dangling a car off a bridge

+ Photo Galleries

What's Hot 1 Image
GADGETS
The Goods: May 2012's Hottest Gadgets
A bowling ball for your smartphone, a reshapeable webcam, a tennis racket designed for complete player comfort, and much more
[Read full story]

What's Hot 2 Image TECHNOLOGY
PopSci Q&A: How Nanoracks Sends Scotch, iPhones and School Experiments to Space
A private, non-governmental space cargo company
[Read full story]

What's Hot 3 Image GADGETS
We Asked Our Readers Why They Love the Samsung Galaxy Note
I didn't care for the Galaxy Note at all--too big, unable to be either a great phone or a great tablet. But it's been a huge success. Here's why
[Read full story]

What's Hot 4 Image TECHNOLOGY
Video: How to Fold the Longest-Flying Paper Airplanes
Two paper-folding masters demonstrate the principles of flight with custom PopSci airplanes
[Read full story]
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ScienceDaily: Energy Technology News

ScienceDaily: Energy Technology News

Secrets of the first practical artificial leaf

Posted: 09 May 2012 09:39 AM PDT

A detailed description of development of the first practical artificial leaf -- a milestone in the drive for sustainable energy that mimics the process, photosynthesis, that green plants use to convert water and sunlight into energy -- has just been published. The article notes that unlike earlier devices, which used costly ingredients, the new device is made from inexpensive materials and employs low-cost engineering and manufacturing processes.

Portable diagnostics designed to be shaken, not stirred

Posted: 09 May 2012 06:24 AM PDT

A textured surface mimics a lotus leaf to move drops of liquid in particular directions. The low-cost system could be used in portable medical or environmental tests.
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Rabu, 09 Mei 2012

ScienceDaily: Energy Technology News

ScienceDaily: Energy Technology News

Acoustic diode, providing one-way transmission of sound, promises to improve ultrasound imaging

Posted: 08 May 2012 12:19 PM PDT

An acoustic diode, enabling the one-way transmission of sound waves, could dramatically improve the quality of medical ultrasound imaging and lead to better sound dampening materials. Such a device has now been created.

New battery system could reduce buildings' electric bills

Posted: 08 May 2012 08:28 AM PDT

The team of scientists who has been developing innovative low-cost batteries that are safe, non-toxic, and reliable with fast discharge rates and high energy densities, announced that it has built an operating prototype zinc anode battery system. The large-scale commercialization of the battery would start later this year.
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