An atom with fewer or greater electrons than normal as a result of a chemical reaction to its environment. A "positive ion" is an atom with fewer electrons, and a "negative ion" is an atom with more electrons. See also IDL.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- An interview with Scott Brinker
- It's clearly a week for publishing podcasts. As well as David Provost, whom I mentioned yesterday, I've also just released a podcast with ion interactive's Scott Brinker. Scott has been blogging for a while about the impact that semantic technologies might have upon his area of interest,...
- Blog posts 2008-10-10
- Start-up looks to extend battery life
- Intel-backed ZPower's silver-zinc battery is set to make its debut with a large laptop manufacturer next year, promising batteries that are 95 percent recyclable and 40 percent longer life. Intel-backed start-up ZPower may be the first to introduce an alternative to the ubiquitous lithium-ion laptop...
- News items 2008-10-09
- Ion Audio Block Rocker portable sound system for iPod
- Options are limited for those who want to make an obnoxious amount of noise outdoors--boom boxes take batteries, bullhorns are abrasive, and that Marshall guitar stack doesn't travel easily. Thankfully, the rechargeable battery-powered Ion Block Rocker ($299) has arrived to deliver bone-rattling sound to even the most quiet, far-flung corners...
- Product reviews 2008-09-26
- Semantics in Advertising
- Whilst there's quite a tendency these days to stick 'semantic' in front of almost every word in the dictionary and attempt to create a new industry segment, the related markets of advertising and marketing do actually seem ripe for this sort of engagement. Ion Interactive President &...
- Blog posts 2008-09-15
- First synthetic tree mimics transpiration
- First synthetic tree mimics transpiration"What could be some possible applications for this synthetic trees?""Planting" them in a Second Life garden! ;-)Still a little sceptical about this.Dr Juan Barba of the Agricultural extension at the University of Arizona may argue that trees transpire at will. If you ever camped in...
- Discussion threads 2008-09-15
- The music scene: legal vs. illegal
- Music is a huge part of our lives, not just students, but it does have a major effect on how we interact, integrate and collaborate. Music can be seen as a work enhancer, a relationship matcher, a commonality between groups or connections - most just see it as something to...
- Blog posts 2008-09-11
- RIM BlackBerry Curve 8330 - gray (U.S. Cellular)
- The RIM BlackBerry Curve series has proven to be a popular line for Research in Motion, making its way to every major U.S. carrier and even regional service providers like U.S. Cellular. Like its larger CDMA brothers, Sprint and Verizon Wireless, U.S. Cellular landed itself the RIM BlackBerry Curve 8330...
- Product reviews 2008-09-09
- Stephen Hawking: LHC vital, absolutely safe
- Stephen Hawking: LHC vital, absolutely safeLHC "vital"?I think Dr. Hawking is overstating the case just a little, but I agree that fears that the LHC will create an earth-swallowing black hole that would require a lot more matter than is available are way overblown.I think the media just likes the...
- Discussion threads 2008-09-09
- Office 2.0: an Irregular mashup
- The upcoming Office 2.0 conference is one of the first in the fall calendar that keeps people like me in more airports than I care to think about. It's also one for which I have fond memories. Office 2.0 started out as an idea put out into the Enterprise Irregulars'...
- Blog posts 2008-08-25
- Google and Sirius XM: Build my "Dream" Handheld
- The current rumor-mongering seems to indicate that HTC's "Dream" will soon be making landfall in the US. Based on the initially leaked specs of this device, it still sounds like it doesn't do what I really would want it to do in order to replace by Blackberry 8820. ...
- Blog posts 2008-08-24
- Some serious research into gasoline-free transport
- Some serious research into gasoline-free transportIt's a motor, a battery, and an engine."Not a surprise, the auto industry is crap at explaining these vehicles to potential buyers."It's a motor, engine, and a battery. The motor can power the wheels. It gets great mileage.That's about as much explaining as you need....
- Discussion threads 2008-08-22
- Penguin 4X Quad Charge Station for Wii
- Of the trio of current-generation video game consoles, only the Nintendo Wii lacks a first-party recharging solution for its controllers. If you don't want to go through an endless stream of AA batteries, that means you'll be turning to one of the increasing number of third-party charging accessories becoming available....
- Product reviews 2008-08-19
- (Photos: Hydrogen Road Tour gets into gear)
- (Photos: Hydrogen Road Tour gets into gear)Where's the Hydrogen?I'll tell you how to get enough hydrogen to run the world for millenia. There are certain, very large areas of the world, typically volcanic, which have a massive heat gradient. One such is Kamchatka, on the Eastern border of Siberia. Here...
- Discussion threads 2008-08-13
- More small scale electric transport
- A2B, courtesy Ultra Motors. This is the A2B, as in "gets you from A to B." It's Ultra Motors' electric bike aimed at the harried, gas-attacked urban commuter. There are other electric bikesd around, of course. Here's Ultra's own pitch...
- Blog posts 2008-08-12
- New technique IDs substances, not just fingerprints
- New technique IDs substances, not just fingerprintsOther tech with no sample prepThe DART Ion Source ([u]http://en.wikipedia.org/wiki/DART_ion_source[/u]) does the same thing, but does not require sample preparation. You can just put any object in front of a DART beam and get the chemical composition right off of the surface. Did you...
- Discussion threads 2008-08-08
- Useful: Cradlepoint PHS300 Personal Hotspot
- The Cradlepoint PHS300 (US$179) creates a personal hotspot with a mobile broadband card like the many EV-DO data cards from carriers like Verizon. I recently got a chance to test a PHS300 on a trip to Bonnaroo in Manchester, TN. Several of us were traveling to the...
- Blog posts 2008-08-06
- Ion Desk Rocker USB speakers
- The Ion Desk Rocker USB speaker system makes short work of getting impressive sound both in and out of your computer. It's not the most attractive or best-sounding system we've tested, but at an affordable $99, the Desk Rocker delivers big sound with a extensive set of features.The Ion Desk...
- Product reviews 2008-07-30
- Smart backup battery pack for iPhone 3G
- One of the biggest drawbacks of the 3G radio and GPS receiver in the new iPhone is the tax that it takes on the battery. Most people using the new iPhone have noted that it can be difficult making it through a full day on a...
- Blog posts 2008-07-22
- RCA Small Wonder EZ200
- Until the recent arrival of Creative's Vado, the biggest competitor for Pure Digital's Flip Video products in the minicamcorder, straight-to-Web video arena has been RCA's Small Wonder. While the video quality of the Small Wonder hasn't quite measured up to the Flip Video models, it does bring some features to...
- Product reviews 2008-06-20
- RCA Small Wonder EZ210
- Of all the budget minicamcorders released in 2008, RCA's Small Wonder Traveler EZ210 may be the oddest duck of the bunch. It has some things going for it: SD card support up to 8GB; a large, sharp 2.5-inch LCD display; and a "rugged" exterior that can presumably help the Traveler--now...
- Product reviews 2008-06-19
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