In agricultural regions such as the U.S. Midwest, excess nitrate from crop fertilizer makes its way into rivers and streams through subsurface drainage channels and agricultural ditches.
Environment
Jan 29, 2018
0
324
The sight of bats hanging upside down in creepy caves or fleeing in fluttery flocks from their subterranean haunts at dusk like "bats out of hell" may spook even the most rational, otherwise unflappable observer.
Plants & Animals
Nov 1, 2012
1
0
(PhysOrg.com) -- A team of archaeologists from the University of Chicago's Oriental Institute, along with a team of Syrian colleagues, is uncovering new clues about a prehistoric society that formed the foundation of urban ...
Archaeology
Apr 6, 2010
3
0
(Phys.org) —The unmatched ability of the human brain to process and make sense of large amounts of complex data has caught the attention of engineers working in the field of control systems.
Engineering
Apr 17, 2013
11
0
While researchers have long known of the incredible strength of spider silk, the robust nature of the tiny filaments cannot alone explain how webs survive multiple tears and winds that exceed hurricane strength.
Computer Sciences
Feb 1, 2012
0
0
(PhysOrg.com) -- New scheme would use only sunlight, air and water to supply energy for cars, laptops, GPS systems.
Materials Science
Apr 7, 2011
19
0
From drawings to computer animation, the magic of cartoon movies allows audiences to explore a fantastical and imaginary world. To make animated characters life-like on the big-screen, the laws of physics have to be taken ...
General Physics
Jun 14, 2011
1
0
(PhysOrg.com) -- To most people, the word "ceramics," refers to opaque clay flower pots or translucent porcelain tea cups. But not all ceramics block or scatter light.
Condensed Matter
Feb 16, 2009
0
0
Among the casualties of the March 11, 2011, earthquake and resulting tsunami in Japan was the country's Fukushima Daiichi nuclear power plant.
Earth Sciences
May 19, 2011
10
0
If you spend a lot of time online, you may even have an electronic alter ego--an avatar. An avatar is a movable image that people design to represent themselves in virtual reality environments or in cyberspace.
Other
Jan 24, 2011
0
1
