Simplicity may be key to robotic self-reproduction
Jun 05, 2007 |
4.6 / 5 (45) |
0
“Self-reproduction is one of the remarkable feats of biological systems which has remained largely outside the scope of capabilities of traditional engineered systems,” explains Victor Zykov and his colleagues ...
Algorithm could help chipmakers work with tangles of nanotubes
Jun 05, 2007 |
4.4 / 5 (22) |
0
Concerned that current methods for making computer chips might become stymied as components keep shrinking, many engineers are looking for circuit building blocks with improved electrical properties.
A Piece of the Past Hitches a Ride on Next Space Shuttle Mission
Space & Earth / Space Exploration
Jun 05, 2007 |
2.3 / 5 (12) |
0
A small piece of early American history will become the latest space traveler with the liftoff of NASA's space shuttle Atlantis. Atlantis is scheduled to launch Friday, June 8 at 7:38 p.m. EDT for the STS-117 mission to the ...
Hitachi Ships Quarter-terabyte Laptop Hard Drive
Jun 05, 2007 |
3.4 / 5 (10) |
0
Hitachi Global Storage Technologies is today announcing volume shipment of the industry’s highest-performing and lowest power-consuming laptop hard disk drive at a quarter terabyte of capacity.
Discovery of oldest human decorations -- thought to be 82,000 years old
Other Sciences / Archaeology & Fossils
Jun 05, 2007 |
4.4 / 5 (29) |
0
Archaeologists have discovered shell beads believed to be 82,000 years old – making them the oldest dated human decorations.
Crammed with charged DNA, pressure rises inside virus
Biology /
Jun 05, 2007 |
4.3 / 5 (14) |
0
It could be an artist’s depiction of someone’s stomach before and after a rather decadent meal. But it is a 3-D cryoelectron microscope reconstruction of the cross-section of a virus, before and after cramming ...
Making strides in quantum dot infrared photodetectors
Jun 05, 2007 |
4.3 / 5 (7) |
0
Researchers at Northwestern University have made significant strides in the development of quantum dot infrared photodetectors -- technology that may provide new imaging techniques with applications in medical and biological ...
Lack of bathroom breaks hurts children
Jun 05, 2007 |
4.6 / 5 (14) |
0
Urinary tract and bladder issues may be forming in children due to irregular urination habits caused by not being allowed to use the toilet at school.
Pieces of Catalyst Puzzle Explained
Jun 05, 2007 |
4.4 / 5 (15) |
0
Catalysts speed up chemical reactions, as in your car’s catalytic converter, and they even double as clichés, as in “catalyst for change,” but how they work remains a mystery.
Economic impact of hunger affects all Americans
Jun 05, 2007 |
3.3 / 5 (11) |
0
While thirty-five million Americans feel the physical effects of hunger each day, every household and individual in our nation feels the economic effects. So finds a new study released today by the Sodexho Foundation and ...
Older men may not live as long if they have low testosterone
Jun 05, 2007 |
4.8 / 5 (9) |
0
Low levels of testosterone may increase the long-term risk of death in men over 50 years old, according to researchers with the Department of Family and Preventive Medicine at the University of California, San Diego School ...
Geoengineering: a quick fix with big risks
Space & Earth / Earth Sciences
Jun 05, 2007 |
2.9 / 5 (16) |
0
Radical steps to engineer Earth’s climate by blocking sunlight could drastically cool the planet, but could just as easily worsen the situation if these projects fail or are suddenly halted, according to a new computer modeling ...
A new plant-bacterial symbiotic mechanism promising for crop applications
Biology /
Jun 05, 2007 |
4.5 / 5 (11) |
0
The growth of most plants depends on the presence of sufficient amounts of nitrogen contained in the soil. However, a family of plants, the legumes, is partially free of this constraint thanks to its ability to live in association ...
Finding protection from tumor growth in unexpected places
Jun 05, 2007 |
3.7 / 5 (7) |
0
Researchers have discovered that an enzyme commonly involved in regulating blood pressure also provides protection from tumor growth when strongly expressed in immune cells. The related report by Shen et al, “Mice with enhanced ...
NASA Shuttle Engine Upgrades Improve Safety and Reliability
Space & Earth / Space Exploration
Jun 05, 2007 |
5 / 5 (2) |
1
A main engine computer upgrade developed by NASA's Marshall Space Flight Center in Huntsville, Ala., will fly on space shuttle Atlantis during the STS-117 mission, targeted for launch June 8. The upgrade is ...
