Dane Summers

astroengine writes: A gas strongly associated with life on Earth has been detected again in the Martian atmosphere, opening a new chapter in a decade-old mystery about the on-again, off-again appearance of methane on Mars. The latest discovery comes from NASA's Curiosity rover, which in addition to analyzing rocks and soil samples, is sniffing the air at its Gale Crater landing site. A year ago, scientists reported that Curiosity had come up empty-handed after an eight-month search for methane in the atmosphere, leaving earlier detections by ground-based telescopes and Mars-orbiting spacecraft an unexplained anomaly. "We thought we had closed the book on methane. It was disappointing to a lot of people that there wasn't significant methane on Mars, but that's where we were," Curiosity scientist Christopher Webster with NASA's Jet Propulsion Laboratory in Pasadena, Calif., told Discovery News.

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Hugh Pickens DOT Com writes "For many education advocates, the arts supposedly increase test scores, generate social responsibility and turn around failing schools but research that demonstrates a causal relationship has been virtually nonexistent. Now the NY Times reports that with the opening of the Crystal Bridges Museum of American Art, a large-scale, random-assignment study (abstract) of school tours to the museum has determined that a strong causal relationship does in fact exist between arts education and a range of desirable outcomes. Students who, by lottery, were selected to visit the museum on a field trip demonstrated stronger critical thinking skills, displayed higher levels of social tolerance, exhibited greater historical empathy and developed a taste for art museums and cultural institutions. Moreover, most of the benefits are significantly larger for minority students, low-income students and students from rural schools — typically two to three times larger than for white, middle-class, suburban students — owing perhaps to the fact that the tour was the first time they had visited an art museum. Further research is needed to determine what exactly about the museum-going experience determines the strength of the outcomes. How important is the structure of the tour? The size of the group? The type of art presented? 'Clearly, however, we can conclude that visiting an art museum exposes students to a diversity of ideas that challenge them with different perspectives on the human condition,' write the authors. 'Expanding access to art, whether through programs in schools or through visits to area museums and galleries, should be a central part of any school's curriculum.'"

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We all love Digikey, but of all the major component retailers out there, their web interface really isn’t that great. A lot of online sources for parts are much, much prettier, but nothing a good Greasemonkey script can’t fix. This is all the work of [Ben], and adds a ton of really, really useful features to the Digikey web interface.

First up is a whole bunch of pictures right at the top of the search results. If you’re looking for pin headers or weird connectors, this is an astonishing useful feature that will help you select the right part faster. After that is a ‘helper’ button for voltages. As you know, selecting a part with a 5V input requires clicking multiple options including 3.3-5V, 2.3-6V, and 5-40V. Clicking on the helper button and entering 5 V will select all the entries in the filter that contain a 5V part.

[Ben]‘s project has been tested with Firefox and Chrome with Greasemonkey extensions. Head on over to his project page for a much better demo of all the features for this really great tool.

Filed under: internet hacks