02/02/2009

Cassini Thruster Swap Planned

(PhysOrg.com) -- The Cassini spacecraft will swap to a backup set of propulsion thrusters in mid-March due to degradation in the performance of the current set of thrusters.

Researchers See Complex Atomic Choreography as Crystals Melt

(PhysOrg.com) -- Conga lines of atoms wend their way through a crystal, their numbers growing as more and more atoms join the migration. The worm-like lines of atoms randomly converge, forming tangles that evolve into droplets ...

RFIDs transmit through metal

(PhysOrg.com) -- Metal efficiently blocks radiation, such as that emitted by RFID chips - small data storage units that are integrated in various objects and transmit their information to a reading device. Now, it is possible ...

The cockpit of the future

(PhysOrg.com) -- Research scientists have developed a novel car dashboard that functions as a 3-D display and shows velocities, engine speeds or warnings in three dimensions. The display’s design can be chosen individually ...

Artificial intelligence -- child’s play!

Scientists have developed a computer game called “Gorge” - designed to help children understand artificial intelligence through play, and even to change it. It can also improve the children’s social interaction skills. ...

Why Don’t More Animals Change Their Sex

(PhysOrg.com) -- Most animals, like humans, have separate sexes — they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their lifetime and then switch ...

Stress Impairs Stem Cell Function in Aging Tissues

(PhysOrg.com) -- Heinrich Jasper, assistant professor of biology at the University of Rochester, has won a $900,000 Senior Fellow Award from the Ellison Medical Foundation for his work showing how stress affects stem cell ...

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