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Social Networks

Twitter Offline Due To DDoS 398

Posted by CmdrTaco from the hate-when-that-happens dept.
The elusive Precision dropped a submission in my lap about a DDoS taking down Twitter running on CNet. It's been down for several hours, no doubt wreaking havoc on the latest hawtness in social networking. Won't someone please think of the tweeters? Word is that both Facebook & LiveJournal have been having problems this AM as well.
Biotech

Philips Develops Roadside Drug-Testing Device 647

Posted by timothy from the better-for-your-privacy-citizen dept.
Al writes "A handheld developed by Philips for law enforcement detects traces of cocaine, heroin, cannabis, and methamphetamine in 90 seconds. The system uses magnetic nanoparticles attached to ligands that bind to traces of these drugs. Once saliva has been placed inside the device, an electromagnet mixes the sample and the nanoparticles. Frustrated total internal reflection (FTIR) — the same phenomenon that underlies fingerprint scanners and multitouch screens — is then used to measure a change to the refractive index. By immobilizing different drug molecules on different parts of a sensor surface, the analyzer is able to identify traces of each different drug. An electronic screen displays instructions and a simple color-coded readout of the results."
Image

Tetraktys Screenshot-sm 216

Posted by samzenpus from the read-all-about-it dept.
brothke writes "Imagine for a moment what his novels would read like if Dan Brown got his facts correct. The challenge Brown and similar authors face is to write a novel that is both compelling and faithful to the facts. In Tetraktys, author Ari Juels is able to weave an interesting and readable story, and stay faithful to the facts. While Brown seemingly lacks the scientific and academic background needed to write such fiction, Juels has a Ph.D. in computer science from Berkeley and is currently the Chief Scientist and director at RSA Laboratories, the research division of RSA Security." Read below for the rest of Ben's review.
Space

New Class of Galaxy Discovered 104

Posted by Soulskill from the give-peas-a-chance dept.
fructose sends along this excerpt from Space Daily: "A team of astronomers has discovered a group of rare galaxies called the 'Green Peas' with the help of citizen scientists working through an online project called Galaxy Zoo. The finding could lend unique insights into how galaxies form stars in the early universe. ... Of the 1 million galaxies in Galaxy Zoo's image bank, only about 250 are in the new 'Green Pea' type. Galaxy Zoo is claiming this as a success of the 'citizen scientist' effort that they spearheaded. ... The galaxies, which are between 1.5 billion and 5 billion light years away, are 10 times smaller than our own Milky Way galaxy and 100 times less massive. But surprisingly, given their small size, they are forming stars 10 times faster than the Milky Way. 'They're growing at an incredible rate,' said Kevin Schawinski, a postdoctoral associate at Yale and one of Galaxy Zoo's founders. 'These galaxies would have been normal in the early universe, but we just don't see such active galaxies today. Understanding the Green Peas may tell us something about how stars were formed in the early universe and how galaxies evolve.'"

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