TOP 100 CAMPING SITES
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| Tree rats and wallabies and dingoes, oh my: Updates on Oz's endangered species It's been a busy week -- full of both good news and bad -- for Australia's endangered species. [More] rss.sciam.com |
Spotted owl recovery plan spotty, says new study The 2008 recovery plan for the northern spotted owl is not likely to help the iconic species recover. In fact, the plan could substantially increase threats to the bird, according to a new study in the journal Conservation Biology. [More] rss.sciam.com |
Marijuana growers started California wildfires Serious bummer, dude. California's totally ablaze, and the cops are laying the blame on marijuana growers. [More] rss.sciam.com |
Can the world's richest man feed the planet? Echoing luminaries before him--from Norman Borlaug to Kofi Annan --the world's richest man Bill Gates called last night for a second Green Revolution focused on African farmers. That revolution won't just be in new crop varieties and higher yields but also in farmer training and infrastructure--and, perhaps most controversially, will be genetically modified. [More] rss.sciam.com |
Readers Respond on the "Origin of Computing" Patent Lead In “ Origin of Computing ,” Martin Campbell-Kelly writes that the first digital computer was J. Presper Eckert and John W. Mauchly’s ENIAC, finished in 1945 as part of the war effort. But the first person to build and operate an electronic digital computer was a physics professor, as noted in “Dr. Atanasoff’s Computer,” published in the August 1988 Scientific American . John Vincent Atanasoff’s first computer was a 12-bit, two-word machine running at 60-hertz wall-plug frequency and could add and subtract binary numbers stored in a logic unit built with seven triode tubes. This was 1937. There was no war, no Pearl Harbor, just a theoretical physicist trying to solve problems in quantum mechanics with his students at Iowa State College in Ames, Iowa. [More] rss.sciam.com |