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Google

Google Indexing In Near-Realtime 79

Posted by kdawson from the faster-pussycat dept.
krou writes "ReadWriteWeb is covering Google's embrace of a system that would enable any Web publisher to 'automatically submit new content to Google for indexing within seconds of that content being published.' Google's Brett Slatkin is lead developer of PuSH, or PubSubHubbub, a real-time syndication protocol based on ATOM, where 'a publisher tells the world about a Hub that it will notify every time new content is published.' Subscribers then wait for the hub to notify them of the new content. Says RWW: 'If Google can implement an Indexing by PuSH program, it would ask every website to implement the technology and declare which Hub they push to at the top of each document, just like they declare where the RSS feeds they publish can be found. Then Google would subscribe to those PuSH feeds to discover new content when it's published. PuSH wouldn't likely replace crawling, in fact a crawl would be needed to discover PuSH feeds to subscribe to, but the real-time format would be used to augment Google's existing index.' PuSH is an open protocol, and Slatkin says that 'I am being told by my engineering bosses to openly promote this open approach even to our competitors.'"
Medicine

Submission + - Identical Twins Not Identical After All

Submitted by
Hugh Pickens
Hugh Pickens writes: "Contrary to previous beliefs, identical twins are not genetically identical. Researchers studied 19 pairs of monozygotic, or identical, twins and found differences in copy number variation in DNA which occurs when a set of coding letters in DNA are missing, or when extra copies of segments of DNA are produced. In most cases, variation in the number of copies likely has no impact on health or development but in others, it may be one factor in the likelihood of developing a disease (pdf). "Those differences may point the way to better understanding of genetic diseases when we study so-called discordant monozygotic twins....a pair of twins where one twin has a disorder and the other does not," says Carl Bruder, Ph.D. "If twin A develops Parkinson's and twin B does not, the region of their genome where they show differences is a target for further investigation to discover the basic genetic underpinnings of the disease.""
Space

Submission + - Building the Interplanetary Internet

Submitted by
sighted
sighted writes: "Internet pioneer Vint Cerf is leading a NASA effort to create a permanent network link to Mars within the next two years. As Cerf outlined in a recent talk, the "InterPlaNet" protocol is designed to handle the delay caused by interplanetary distances. For example, it can take a signal up to 20 minutes to travel between the Earth and Mars, depending on the distance between the two planets."
Security

Scientists Make Quantum Encryption Breakthrough 156

Posted by samzenpus from the completely-secure-for-at-least-a-few-days dept.
Madas writes "Scientists working in Cambridge have managed to make quantum encryption completely secure (registration required) by putting decoy pulses in the key transmission stream. According to the story this paves the way for safe, encrypted high-speed data links. Could this allow completely private transmission of data away from snooping eyes and ears? Or will it mean film studios can stop movies from being copied when traveling on the internet?"

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Biology is the only science in which multiplication means the same thing as division.

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