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Aldo Gangemi
309 followers -
My work is on the Web and Semantic Technologies.
My work is on the Web and Semantic Technologies.

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Centaurians, see you soon, like Philip Dick imagined in the fifties :)
NASA’s Warp Drive Project: “Speeds” That Could Take a Spacecraft to Alpha Centauri in Two Weeks Even Though the System is 4.3 Light-Years Away, Video http://b4in.org/c4Hg

A  few months ago, physicist Harold White stunned the aeronautics world when he announced that he and his team at NASA had begun work on the development of a faster-than-light warp drive.

His proposed design, an ingenious re-imagining of an Alcubierre Drive, may eventually result in an engine that can transport a spacecraft to the nearest star in a matter of weeks — and all without violating 
 
 The idea came to White while he was considering a rather remarkable equation formulated by physicist Miguel Alcubierre. In his 1994 paper titled, “The Warp Drive: Hyper-Fast Travel Within General Relativity,”
 
Alcubierre suggested a mechanism by which space-time could be “warped” both in front of and behind a spacecraft.
 
Michio Kaku dubbed Alcubierre’s notion a “passport to the universe.” It takes advantage of a quirk in the cosmological code that allows for the expansion and contraction of space-time, and could allow for hyper-fast travel between interstellar destinations.

Essentially, the empty space behind a starship would be made to expand rapidly, pushing the craft in a forward direction — passengers would perceive it as movement despite the complete lack of acceleration.
 
White speculates that such a drive could result in “speeds” that could take a spacecraft to Alpha Centauri in a mere two weeks — even though the system is 4.3 light-years away.
 
In terms of the engine’s mechanics, a spheroid object would be placed between two regions of space-time (one expanding and one contracting).
 
A “warp bubble” would then be generated that moves space-time around the object, effectively repositioning it — the end result being faster-than-light travel without the spheroid (or spacecraft) having to move with respect to its local frame of reference.
 
“Remember, nothing locally exceeds the speed of light, but space can expand and contract at any speed,

More with video  and further illustrations  http://b4in.org/c4Hg
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so it seems that Eugene Goostman, the chatbot at http://www.princetonai.com/bot/ has passed the Turing test. However, I and Valentina Presutti are quite skeptical ... we asked the result of 2+3 and it answered 5.0 ... :)

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A view of St. James recreation area, Lewis Pass, NZ

The tall grass made interesting patterns. I think the b&w rendition enhances it better than the color version, http://goo.gl/rIAu9. What do you think?

My contribution to #grasstuesday by +Ray Bilcliff +Marilou Aballe (can't make the link work on her name!) +Grass Tuesday.
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