Tuesday, July 7, 2009

The Fastest Firefox

The Fastest Firefox Yet
Things move quickly online, and we’ve beefed up the engine that runs Firefox to make sure you can keep up: Firefox 3.5 is more than twice as fast as Firefox 3, and ten times as fast as Firefox 2.* As a result, Web applications like email, photo sites and your favorite social networks will feel snappier and more responsive.

Web Developer Features
Open Video and Audio
Online media gets a major upgrade with Firefox 3.5. It includes the world’s first implementation of HTML 5 audio and video support (Ogg Vorbis and Ogg Theora), allowing web developers to include rich media that’s controlled using JavaScript, HTML and CSS instead of by proprietary technologies. View documentation.

Firefox 3.5 supports cross-site XMLHttpRequests, which means your Web applications can now access material from other servers (as long as the servers are configured to allow it), thus paving the way for new mashups and other online collaborations.
Location-aware Browsing
In Firefox 3.5, users can share their location with requesting websites, allowing developers to customize their applications so they deliver more useful, more relevant output.

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Saturday, July 4, 2009

9 Ways to Avoid Knee Pain and Injuries Learn what exercises and actions to avoid to prevent knee injuries.

Knee pain is often caused by either a one-time acute injury or repetitive motions that stress the knee over time, particularly as we age. There are some steps you can take to avoid knee pain and injuries.

"One of the most common things that causes knee injuries is the runner's stretch," says Robert Gotlin, DO, director of sports rehabilitation at Beth Israel Medical Center in New York City. "That's when you grab your foot, bringing heel to butt. We all do it, but it's one of the things that tends to increase knee pain. By bending the knee all the way, the kneecap gets jammed into the bones below it."

Dr. Gotlin said the runner's stretch can set the stage for chondromalacia patella, a condition where the cartilage under your knee cap becomes softened, which is the most common form of knee pain. "By repeatedly jamming your kneecap, you are promoting more chondromalacia," he says.

Generally, Gotlin says the best knee injury prevention starts with becoming familiar with your own body and learning how to exercise correctly. If your knees are the type that are prone to chronic pain from arthritis, for example, impact-oriented exercise is not a good idea. Opt for an elliptical machine rather than the treadmill at the gym.

Tips for Avoiding Knee Injuries
In addition to Gotlin's advice, you can avoid knee pain and injuries by doing the following:

1. Maintain your weight. Because extra weight can increase your chances of developing osteoarthritis, maintain a weight that's appropriate for your size and age to decrease stress on your knees and to avoid increased chances for knee injuries.
2. Wear sensible shoes with a good fit. It will help you to maintain proper leg alignment and balance, ultimately preventing knee injuries.
3. Warm up. Before starting any exercise, warm up and then do stretches. If you stretch muscles in the front and back of your thighs, it decreases tension on your tendons, ultimately relieving pressure on the knees.
4. Do low-impact exercise. At the gym, opt for a rowing machine or a cross-country skiing machine. Both offer a strong workout with low impact to your knees.
5. Swim or walk. When exercising outside of the gym, opt for swimming or walking.
6. Weight train. Strengthen your leg muscles to better support your knees and avoid injuries by working out with weights. But be sure to consult with an expert first on the right way to life weights to prevent knee pain.
7. Don't decrease your activity. A decrease in activity will lead to weakness, increasing your chances of injuries.
8. Don't suddenly change the intensity of your exercise. Build up gradually to avoid knee pain.
9. Consider physical therapy. If you already have a knee injury, visit a physical therapist who can help to set up an appropriate exercise regime.
You may notice that some people with knee problems wrap their knees during exercise or at other times. Gotlin says people generally do this because it feels good. While it won't hurt your knee, it won't help to avoid an injury. If you wrap, be sure to avoid wrapping too tightly, because that can also cause a knee problem.

Wednesday, July 1, 2009

Hands On: Google Chrome 2

Hands On: Google Chrome 2: "Google on Thursday unveiled the latest version of its Chrome browser, moving the product out of beta and promising speed boosts of up to 30 percent. How does it measure up?"

Hands On: Google Chrome 2

Google on Thursday unveiled the latest version of its Chrome browser, moving the product out of beta and promising speed boosts of up to 30 percent. How does it measure up?

If you are already using the beta version of Chrome, the features will be familiar, including the speedier JavaScript performance of the browser's V8 interpreter. Google touts a 30 percent speed increase for Chrome; my testing actually showed a 44 percent improvement.

Chrome 2 completed the well-known SunSpider JavaScript benchmark in 1503ms, compared with 2689ms for version 1. This leaves the competition in the dust: Internet Explorer 8 required 9,065ms, while the Firefox 3.1 beta took 3,045ms.

In terms of features, not much has changed since our preview of the Chrome 2 beta. Most notably, you can now remove the thumbnails of your choice from the new tab pages you open. It also includes auto-fill, a full-screen mode, and the ability to drag and drop windows to fit the screen equally.

Two more features that have long been available in Windows browsers are full-screen mode and auto form filling, which saves you from retyping your address and phone number over and over.

The new version also fixes numbers bugs, which you can read about on the browser's developer blog, chromium.org.