Taipei Tech Club

The Associated Press didn't need any help from a bunch of unshowered bloggers pecking away at their keyboards from the basement offices in which they play "reporter," thank you very much. Now it knows better.

At the AP's 2009 annual meeting, Chairman Dean Singleton reminded his audience (read the speech) that the AP and its members "are the source of most of the news content being created in the world today." The collective remains "the gold standard of newsgathering and reporting throughout the world." And with 62 journalists killed, beaten, or detained in 2008, journalism "is not a profession for the fainthearted, or those who work in their pajamas."

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Even as the IEEE P1901 working group was set to meet this week to recommend its draft standard for broadband over powerline networks for official status, Netgear announced its line of Powerline AV 500 adapters that incorporate the HomePlug-compatible flavor of the standard. The new devices theoretically promise up to gigabit Ethernet speeds over home electrical wiring, and are the first to incorporate the newest standard.

The Powerline AV 500 comes in either standard or power pass-through versions, and are available in two-adapter "kits" to set up a source and destination point for your network. While hardcore geeks won't settle for anything less than running Cat 6 cable all throughout the house, powerline adapters have the benefit of being able to utilize existing electrical wiring to move data from point to point, and could be convenient for homes or apartments where running new cable would be impractical, prohibitively expensive, or just not allowed by your landlord.

While the IEEE P1901 standard promises speeds up to 1Gbps, no powerline adapters come close to the top theoretical speeds (and to be fair, neither does most wireless networking hardware). Still, it can provide greater and more consistent bandwidth for applications like networked AV equipment or gaming consoles compared to increasingly crowded home WiFi networks.

"Almost every new home entertainment device today can be connected to the Internet. This puts tremendous demand on the home network," Netgear product manager Chris Geisersaid in a statement. The new Powerline adapters are up to 2.5 times faster than competing products and provide a useful supplement to WiFi networks, he said.

The Powerline AV 500 line starts at $159 for a kit, and will begin shipping this fall according to Netgear. The P1901 WG expects its standard to be submitted the IEEE for adoption as an official standard at the end of this month.

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Canonical has announced the availability of the Ubuntu 10.10 beta release. The new version of the popular Linux distribution, codenamed Maverick Meerkat, is scheduled for final release in October. It brings some noteworthy user interface improvements and updated software.

The beta ships with GNOME 2.31, which introduces support for the new dconf configuration storage system. Ubuntu's standard F-Spot photo tool has been replaced by Shotwell, a relatively new application that is developed by nonprofit software group Yorba. Although it's not as feature-complete as F-Spot, it's progressing quickly and has a lot to offer.

Canonical has continued its work on panel indicators, especially the audio indicator which now has playback controls in addition to a volume management slider. This will eliminate the need for individual audio applications to have their own notification area icons.

Work has also continued on the Ubuntu Software Center, which now promotes "Featured" applications and has a section for purchasing commercial third-party applications. The look and feel of the Software Center is more refined and aesthetically sophisticated.

The Ubuntu Netbook Edition has seen particularly dramatic improvements during this development cycle due to Canonical's work on the new Unity user interface. Unity, which was initially introduced in May, has matured very rapidly. It has a global menubar that works surprisingly well.

Users who want to get an early look at the new version can download the beta release from the Ubuntu website. For additional information, you can refer to the release notes.

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The extraction of heavy crude oil from oil sands in Canada is releasing as many as 13 kinds of pollutants into the surrounding air and water, according to a study published in PNAS this week. The independent report directly contradicts the results of the government-administered Regional Aquatic Monitoring Program (RAMP) that claimed neither humans nor the environment were at risk from the oil extraction.

Oil sands are swaths of ground that are laced with heavy crude oil that can be extracted and refined into fuel. Development of oil sands in Canada has been taking place since 1967, but scientists have long been uncertain of the production's impact on the environment.

The RAMP study conducted by the government showed no significant ill effects, but another group of scientists decided to double-check their work. They took samples around an oil sands development facility in Alberta near the Athabasca River from the air and surrounding watersheds, and found some highly contradictory evidence.

Summertime water samples downstream from the development area had concentrations of elements like mercury, arsenic, chromium, and beryllium eight times as high as the background levels. Air samples showed concentrations twice that of the late 1970s, and during the winter, the water concentrations were also twice as high as normal.

The authors speculate that the concentration difference results from the snow capturing many airborne particulates and holding them until summer, when it all melts into the ground and water. The researchers also suspect that many of the airborne contaminants are scattered, lowering their local concentrations but spreading their effects over a wide area.

While this single study doesn't automatically invalidate the RAMP study, this data seriously undermine the government's results and methods, and suggests that the long-term effects of oil sands development bear further scrutiny.

PNAS, 2010. DOI: 10.1073/pnas.1008754107  (About DOIs).

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