Monthly Archive for February, 2008

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Don’t Forget to Check for Poison

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The more we know about chemistry, nuclear physics, and health care, the more it seems like we are threatened by unseen sources: radon from the ground and lead in paint and plastics are just a couple examples.

But scientific advances also reassure us as we come up with more devices to help us combat these unseen foes. An example is the new small, portable x-ray fluorescence spectrometer, or XRF device. This tabletop device uses x-rays to probe objects for any of the highlighted elements in the photo shown above. This includes potentially toxic chemicals like lead.

The California Department of Toxin Control recently put on a demonstration of the devices. So far, they have been used to find lead and other toxins in consumer products like toys and shopping bags.

Read more at CNet.com.

Working Out the Wii Way

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It used to be that video games were for couch potatoes.

Then the Nintendo Wii came along. The Wii moved video gaming up a level in terms of physical action, using a wireless controller to simulate actions like throwing, punching, or swinging an object.

The first time you tried playing Wii Sports, you might have noticed that you were a little out of breath. You were having so much fun playing tennis, bowling, baseball, or boxing that you didn’t even notice you were working out!

Now, Nintendo has chosen to emphasize the physical benefits of Wii gaming by introducing the Wii Fit system. This system uses a small, flat box (the Balance Board) that senses your weight distribution and motions and wirelessly sends the information to the gaming box. While you perform exercises such as aerobics, dancing, and balancing, the Wii makes measurements and gives you feedback.

The bad news? Wii Fit is not yet available to American gamers. It has been a huge success in Japan, and Nintendo intends to release it in the U.S. this year.

The Switch to Flash and the Death of the Hard Drive?

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Hear that loud whirring sound from your laptop? That’s the fan working overtime to try and cool down your overheated machine. This massive heat dissipation is caused by many culprits, and the main one is your hard drive.

What’s on your hard drive? It’s a bunch of spinning disks, and it’s those that drain so much power. But several recent advances in Flash technology innovation mean that the spinning disks may soon turn into a relic of the past.

A few years, the introduction of the NAND flash memory looked like it would signify a revolution in computer storage, with a lot of memory packed into a small space. But there was one drawback: data transfer rates between devices were sluggishly slow.

Now, a partnership of Intel and Micron has come up with a potential cure for the bottleneck. Their joint venture recently released a new flash drive with data transfer rates up to 200 MBps (reading) and 100 MBps (writing). That’s about 5 times faster than traditional flash technology.

Source: InfoWorld.com

The Next Generation of Google Searching

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One word best describes the Google search engine interface: simplicity. The search screen contains little else besides the logo, the search bar, and a few links. The results list is plain and to-the-point. This concept may be one of the reasons so many people find it easy to use.

But it’s also in need of an upgrade. While Google’s search algorithms are in a state of continual refinement, the user interface hasn’t changed much over the years. They’re working on this, and big changes are near. And they want your help.

Google is now offering its experimental search page, where users can try out one of five different interfaces to the search engine. Options include a timeline of results, keyboard shortcuts, suggested alternative keywords, and a new right- or left-hand navigation box.

Don’t get too carried away — you can only try out one of these options at once. But once you choose an experimental option, that choice will be displayed every time you perform a Google search.

To have your say in the upgrade of the world’s favorite search engine, go to the Google experimental search page. Also read more at ars tecnica.

What else can you power with solar energy?

Solar powered device 1 Taking advantage of solar energy means dedicating a significant size of your roof space to large, unwieldy solar panels, right?

The answer is, of course, no. You can buy solar panels in all sorts of sizes, ranging from a square foot or less to an entire yard-size. Of course, if you want to get all of your home power from solar energy, you’ll have to invest in a large span of panels. But if you’re looking for a smaller, cheaper place to begin your relationship with the sun, why not start by powering your personal electronics?

Several companies now offer solar power packs that are small, attractive, and portable. They’re meant for powering devices like CD and MP3 players, speakers, and cell phones. While prices can range up into the hundreds for elaborate systems, some companies like Solar Style offer small packs for as little as $27.99.

Portable solar power packs from Solar Style
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How do they do it? We start with the most essential item: the photovoltaic cells that capture energy from the sun. In fact, the sun isn’t even necessary; light from any source can be converted into usable energy. Of course, the more intense the light, the more energy you will store.

The next step is to store the energy. Solar packs have an on-board battery that acts as your savings account for the energy you collect. Leave your power pack collecting light whenever you can, and save the energy for later. (But don’t turn on a houselight specifically to shine on the pack – that’s just being silly!)

Now, the only remaining step is getting that power to your electronic devices. All you need for this is the right connector. Most purchase options include some connectors for cell phones and music players. If your device has an unusual power connector, you may have to buy one separately. The point is, you can power any device this way, as long as you have the connector.

At these prices, there is no reason not to purchase a solar power pack. The devices are small and convenient, and can eliminate the need for an outlet – thus allowing us to truly enter the wireless age. In addition to convenience, these gadgets are green. Instead of using expensive electricity from the power grid, which increases carbon emissions and dependence on foreign oil, you can tap into a free, renewable energy source that already surrounds you.

Check out the websites of Solar Dyne, Radio Labs, and Solar Style for more on their products.