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The output of a CCD pixel is proportional to the amount of light falling onto it.
Photons striking a silicon surface create free electrons through the photoelectric effect. Nature abhors a vacuum and thus a concomitant positive charge or ‘hole’ is generated as well. If nothing else is done the hole and the electron will recombine and release energy in the form of heat. Small thermal fluctuations are very difficult to measure and it is thus preferable to gather electrons in the place they were generated and count them in some manner to create an image. This is accomplished by positively biasing discrete areas to attract electrons generated while the photons come onto the surface. Shown at left is a simple diagram of a CCD pixel.
Originally posted by Manhater
reply to post by Phage
Sorry, I will not agree with you on pixel now. I know what a pixel is in the art world and that is definitely not a pixel. It will be if I take it more out proportion. If it was a pixel it wouldn't that definable in thumbs view. Not that clearly defined anyway.
edit on 15-5-2012 by Manhater because: (no reason given)
Originally posted by kerazeesicko
The thing that ticks me off..is the fact that people who have no clue as to what they are looking at because of their lack of education, making stupid threads claiming alien spacecraft around or coming out of the sun on SOHO images. When it always has other mundane explanations and it takes people like Phage or other people who are more qualified to answer what it was.
When confronted with the real answer (with data to back it up) the OP's of these threads deny it and never offer their own data to refute.
People if you have no idea what you are looking find out first before making stupid threads...
SmarterChild was an intelligent agent or bot developed by New York's ActiveBuddy, Inc. It was widely distributed across global instant messaging and SMS networks. SmarterChild became very popular with over 30 million Instant Messenger "friends" on AIM (AOL) and MSN over the course of its lifetime. Founded in 2000, ActiveBuddy was the brainchild of Robert Hoffer, Timothy Kay and Peter Levitan. The idea for instant messaging bots came from Hoffer’s vision to add natural language comprehension functionality to the increasingly popular instant messaging and SMS platforms. The original implementation took shape as a word-based adventure game but quickly grew to include a wide range of database applications including instant access to news, weather, stock information, movie times, yellow pages listings, and detailed sports data, as well as a variety of tools (personal assistant, calculators, translator, etc.). These various applications were bundled into a single entity and launched as SmarterChild in 2001. SmarterChild acted as a showcase for the quick data access and possibilities for fun personalized conversation that the company planned to turn into customized, niche specific products
No offense towards Phage, seems like a decent guy but all he does is regurgitate the same info thats provided by the same agencies that many of us have come to distrust over the years.