Erosion is the displacement of solids (soil, mud, rock and other particles) by the agents of wind, water or ice, by downward or down-slope movement in response to gravity or by living organisms (in the case of bioerosion). Erosion is distinguished from weathering, which is the decomposition of rock and particles through processes where no movement is involved, although the two processes may be concurrent.

Erosion is an intrinsic natural process but in many places it is increased by human land use. Poor land use practices include deforestation, overgrazing, unmanaged construction activity and road or trail building. However, improved land use practices can limit erosion, using techniques like terrace-building and tree planting.

A certain amount of erosion is natural and, in fact, healthy for the ecosystem. For example, gravels continually move downstream in watercourses. Excessive erosion, however, can cause problems, such as receiving water sedimentation, ecosystem damage (including fish kills) and outright loss of soil.

More on [ Erosion ]

NYT > Technology

Europeans Retreat on Venture Investing
Wed, 27 Aug 2008 04:14:42 -0000
European venture capitalists are investing less money in fewer companies, mirroring a trend seen in financing for American start-ups.
At Disney, Blu-ray Sales Team Is a Cast of Characters
Wed, 27 Aug 2008 04:07:40 -0000
Disney has put together a marketing campaign using Pinocchio and Snow White to accelerate consumer adoption of next-generation DVD technology and boost sales.
Bits: Clean-Tech Venture Capitalist Speaks to the Democrats
Wed, 27 Aug 2008 06:37:32 -0000
Nancy Floyd, a venture capitalist who invests in clean technology, addressed the Democratic National Convention on Tuesday.
Bits: AT&T Launches New Data Plans for iPhone Users Roaming Abroad
Wed, 27 Aug 2008 04:22:42 -0000
AT&T added two new international data plans for U.S.-based iPhone users roaming overseas. One of the plans costs as much as the Apple iPhone handset.
Bits: Facebook Gets Friended by Malware
Wed, 27 Aug 2008 02:48:17 -0000
Facebook users have been targeted by spam and a rapidly mutating Internet worm, but the company says it is fighting off the attacks.
Hewlett-Packard Closes E.D.S. Deal
Wed, 27 Aug 2008 11:07:24 -0000
The company said that it has completed its $13.9 billion purchase of Electronic Data Systems, and that its top-level management structure would remain largely unchanged.

NerdTV | PBS

NerdTV #13: Judy Estrin
Mon, 10 Apr 2006 12:00:00 -0700
Judy Estrin's career ranges from founder of Bridge Communications to CTO of Cisco to running Packet Design LLC. Quite the girl geek, eh?Download video:Entire Show:MPEG-4 | TorrentNerdy Bit:MPEG-4 | TorrentJuicy Bit:MPEG-4 | TorrentDownload subtitled video:Entire Show:With Subtitles | Torrent w/ SubtitlesNerdy Bit:With Subtitles | Torrent w/ SubtitlesJuicy Bit:With Subtitles | Torrent w/ SubtitlesDownload audio:Entire Show:MP3 | TorrentAAC | TorrentOgg Vorbis | Torrent
NerdTV #13: Judy Estrin - Transcript
Mon, 10 Apr 2006 12:00:00 -0700
For those who would rather read than watch or listen.
NerdTV Archives
Mon, 10 Apr 2006 12:00:00 -0700
Miss a past show? Check out our archives.Past guests include:#12: Bob KahnInventor of TCP/IP.#11: Doug EngelbartComputer mouse inventor.#10: Dan BricklinInventor of the Spreadsheet#9: AninaHigh Fashion Meets High Tech#8: Avram MillerCo-founder of Intel Capital#7: Dan DrakeCo-founder of Autodesk#6: Dave WinerFather of RSS and Web Logging#5: Tim O'ReillyOpen Source pioneer#4: Brewster KahleInternet Archive founder#3: Bill JoyCo-founder of Sun#2: Max LevchinCo-founder of PayPal#1: Andy HertzfeldThe first Macintosh programmer...ever

Reuters: Technology News

TiVo to tie up with Entertainment Weekly: report
Wed, 27 Aug 2008 02:52:15 -0400
(Reuters) - Digital video recorder maker TiVo Inc is set to enter into an agreement with Time Warner's Entertainment Weekly that will allow its users to automatically record shows suggested by the magazine's staff, the Wall Street Journal said.
Weak economy to sap handset market growth: Gartner
Wed, 27 Aug 2008 04:27:48 -0400
HELSINKI (Reuters) - A weakening global economy will blunt cellphone market sales growth this year, research firm Gartner said on Wednesday.
U.S. airports back to normal after computer glitch
Wed, 27 Aug 2008 04:03:13 -0400
WASHINGTON (Reuters) - Major U.S. airports were operating normally on Tuesday evening after a glitch in the computer system for filing flight plans delayed hundreds of flights, the Federal Aviation Administration said.

AP Top Technology News At 7:12 a.m. EDT

Best Western rebuts claims of massive data breach
By JORDAN ROBERTSON Wed, 27 Aug 2008 01:45:09 -0000
SAN FRANCISCO (AP) -- Did a computer intrusion at a Best Western hotel in Germany open the door for a hacker to steal the records of 8 million customers and pull off "the greatest cyber-heist in world history," as a Scottish newspaper put it?...
Review: A $130 phone headset helpfully talks back
By PETER SVENSSON Tue, 26 Aug 2008 13:51:16 -0000
NEW YORK (AP) -- Bluetooth wireless headsets for mobile phones are puzzling: We're supposed to control them with couple of unmarked buttons and get feedback from a single indicator light....
Broadcom co-founder apologizes after plea deal
By GILLIAN FLACCUS Tue, 26 Aug 2008 19:33:17 -0000
SANTA ANA, Calif. (AP) -- Broadcom Corp. co-founder Henry Samueli has apologized for lying to the Securities and Exchange Commission during its probe of stock options backdating at the chip maker....

Subscribe to Technology RSS feed