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Space

Submission + - Space Telescope to track objects in GEO orbit (spacenews.com)

Submitted by FullBandwidth
FullBandwidth writes: A while back we reported on the DARPA Space Surveillance Telescope, though loyal slashdotters were divided on exactly what astronomers would be looking for. DARPA now makes it clear that the telescope will "enable wide-field views of objects in geostationary orbit" in support of the Air Force mission of "tracking satellites and other objects in Earth orbit and reporting that information to U.S. Strategic Command."
NASA

Submission + - NASA Satellite Shows Southern Tornadoes From Space (ibtimes.com)

Submitted by
gabbo529
gabbo529 writes: "NASA has gotten pretty good at using satellites to track natural disasters; and a tornado that twisted through the south was no different. Like it has done previously with earthquakes, hurricanes and tsunamis, a NASA satellite has captured a devastating natural disaster from a space satellite. An image acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) from NASA's Aqua satellite on April 28, distinctly shows three tornado tracks in Tuscaloosa, Ala."
Google

Submission + - Oracle, Google Move To Streamline Java Suit (itworld.com)

Submitted by
itwbennett
itwbennett writes: "Google and Oracle each submitted proposals on Friday to reduce the number of claims in their Java patent infringement lawsuit, which could help bring the case to a speedier conclusion. Earlier this month, lawyers for the two companies gave Judge William Alsup of the U.S. District Court in San Francisco a crash course in Java to prepare him for a claim construction conference."
Intel

Submission + - Silicon odometer might soon boost your CPU (extremetech.com)

Submitted by Anonymous Coward
An anonymous reader writes: Manufacturers like Intel and AMD criminally underclock their processors because they lack a way to accurately measure the aging of MOSFET transistors. A new silicon odometer, which uses a pair of ring oscillators to measure the "beat" of transistors, should enables on-die monitoring of transistor aging, and thus allows for much higher clock speeds.

Submission + - Controlling Light with an Optical Event Horizon (aps.org)

Submitted by
lee1
lee1 writes: "Two German scientists have developed the theory for an all-optical transistor. In their words: 'This concept relies on cross-phase modulation between a signal and a control pulse. Other than previous approaches, the interaction length is extended by temporally locking control and the signal pulse in an optical event horizon, enabling continuous modification of the central wavelength, energy, and duration of a signal pulse by an up to sevenfold weaker control pulse.'"
Space

Submission + - The Densest Planet In The Universe (So Far) (ibtimes.com)

Submitted by RedEaredSlider
RedEaredSlider writes: Astronomers have found what may be the biggest rocky planet in the neighborhood.

The planet is called 55 Cancri e. It is 60 percent larger than the Earth, eight times as massive and orbits its star so fast that an entire year passes in less than a day.

It is about 8.57 times the mass of Earth, plus or minus about 0.64 Earth masses. That gives a density of about 10.9 grams per cubic centimeter, twice that of Earth, which averages about 5.5 grams. The surface gravity would be about 2.7 times that of Earth, comparable to what one would feel at the cloud tops of Jupiter.
The Military

Submission + - Robo-gunsight system makes sniper's life easier (scienceblog.com)

Submitted by Anonymous Coward
An anonymous reader writes: Military and police marksmen could see their rifle sights catch up with the 21st century with a fiber-optic laser-based sensor system that automatically corrects for even tiny barrel disruptions. Factors such as heat generated by previously fired shots, to a simple bump against the ground can affect the trueness a rifle barrel. The new system precisely measures the deflection of the barrel relative to the sight and then electronically makes the necessary corrections. With modern high-caliber rifles boasting ranges of up to two miles, even very small barrel disruptions can cause a shooter to miss by a wide margin.

Comment Re:Little help? (Score 1) 122

by Steve Blake (#28655257) Attached to: New Router Manages Flows, Not Packets

IntServ assumed that flows are signalled (with RSVP). The Anagram box (and the Caspian box before it) detects the first packet in a flow (by a miss in the flow cache), and then creates a flow cache entry.

The utility of this feature is very questionable, especially since routers have been able to IP forward and apply ACLs at line rate for years.

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