In the 40 years that humans have been traveling into space, the suits they wear have changed very little. The bulky, gas-pressurized outfits give astronauts a bubble of protection, but their significant mass and the pressure ...
Space Exploration
Jul 16, 2007
0
0
Push two magnets together and you'll set off an avalanche of activity, forcing atoms on each magnet to align their polarity with the intruding magnetic field. It may sound like a party trick for physicists, but you do it ...
General Physics
Jul 16, 2007
0
0
A new study reports that community forest enterprises represent an invisible investment of US$2.5 billion in management and conservation in some of the planet’s richest forest habitats. This is more than governments in ...
Environment
Jul 16, 2007
0
0
The ability to pump liquids at the cellular scale opens up exciting possibilities, such as precisely targeting medicines and regulating flow into and out of cells. But designing this molecular machinery has proven difficult.
Bio & Medicine
Jul 16, 2007
0
0
The first soil moisture maps with a spatial resolution of one km are available online for the entire southern African subcontinent. As soil moisture plays an important role in the global water cycle, these maps, based on ...
Environment
Jul 16, 2007
0
0
Scientists at the Naval Research Laboratory (NRL) have efficiently injected a current of spin-polarized electrons from a ferromagnetic metal contact into silicon, producing a large electron spin polarization in the silicon. ...
General Physics
Jul 16, 2007
0
0
