Spirit Rover: Rear Wheel Trouble Continues
(PhysOrg.com) -- Results of diagnostic tests on Spirit's right-rear wheel on Sol 2109 (Dec. 8, 2009) continue to indicate a troubled wheel, which may leave the rover with only four operable wheels.
Electrical circuit runs entirely off power in trees
You've heard about flower power. What about tree power? It turns out that it's there, in small but measurable quantities. There's enough power in trees for University of Washington researchers to run an electronic ...
Carbon nanotubes and aptamers: Vew biosensor detects extremely low bacteria concentrations quickly, easily, reliably
(PhysOrg.com) -- Bacterial diseases are usually detected by first enriching samples, then separating, identifying, and counting the bacteria. This type of procedure usually takes at least two days after arrival ...
High-speed signal mixer demonstrates capabilities of transistor laser
(PhysOrg.com) -- Scientists at the University of Illinois have successfully demonstrated a microwave signal mixer made from a tunnel-junction transistor laser. Development of the device brings researchers ...
Cattle respond to magnetic fields from power lines
(AP) -- High-voltage power lines mess with animal magnetism. Researchers, who reported last year that most cows and deer tend to orient themselves in a north-south alignment, have now found that power lines can disorient ...
Mars Orbiter Resumes Normal Science Operations
(PhysOrg.com) -- NASA's Mars Reconnaissance Orbiter has fully recovered from an unexpected computer re-set last week and resumed its scientific investigation of Mars.
Reverse current sheds new light on solar cells
(PhysOrg.com) -- The electric breakthrough of solar cells cannot be ascribed to the surface preparation as has now been demonstrated by physicists at the University of Leipzig and the company Q-Cells SE in ...
Landmine detector that uses pulse induction to improve sensitivity
Collaborating researchers at the Gwangju Institute of Science and Technology and the Samsung Thales Corporation have developed a landmine detector that uses pulse induction to improve sensitivity. Their device ...
Drone revolution draws near, but big obstacles remain
The drones are coming. Not as flying deliverymen that bring diapers, books or soup cans to your home, a vision put forth by Amazon CEO Jeff Bezos to much fanfare a little more than a year ago.
A single-sheet graphene p-n junction with two top gates
Researchers in Canada have designed and fabricated a single-sheet graphene p-n junction with two top gates. The standard technique, using a top and a bottom gate, can lead to damaging of the graphene layer. ...
Off-grid German village banks on wind, sun, pig manure
If Germany has taken a pioneering though risky role in shifting to renewable energy, then the tiny village of Feldheim—population 150—is at its vanguard.
2nd spacewalk in 2 weeks at space station
(AP)—Astronauts are spacewalking at the International Space Station for the second week in a row.
Reducing the internal complexities of power converters in small devices
Electronic devices could be made cheaper, smaller and more efficient by reducing the complexity of their internal method of converting and regulating energy, according to a patent by a University of Alabama engineering professor.
Direct current, another option to improve the electrical power transmission
Even though today most of the electricity transmission lines are alternating current ones, in some cases direct current lines are also used.And researchers are becoming aware that in some cases direct current ...