FIRST AUDION TUBE
November 25, 1906 - New York City, USA
The first triode was ordered by Lee de Forest who instructed the New York automobile lamp maker, H. W. Candless, to make a glass bulb containing a "grid" wire between a filament and an electrode plate. These specifications extended the Fleming two-element diode valve design previously published in the Proceedings of the Royal Society. The third element - the grid wire - regulated the flow of electrons between the filament and the anode plate, producing an amplification of the variations in a signal voltage applied to the grid. De Forest named his invention the "Audion." Within a few years (1913-1917) he was able to profit from his patents that he sold to AT&T for a total of $390,000.
WIKILEAKS PUBLISHES 9/11 PAGER MESSAGES
November 25, 2009 - World
The unfolding story of the 9/11 attacks on the World Trade Centre and the Pentagon is being given to the public with more than 500,000 intercepted pager messages (many from US officials) published online in the order in which they were sent. The messages will begin at 8am GMT, and continue for 24 hours until all of the messages are distrubuted. Wikileaks will be including pager messages that were sent on the day by officials in the Pentagon, the New York police and witnesses to the collapse of the twin towers.
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All of us have a God in us
by Earth Day, Kenya
"...All of us have a God in us, and that God is the spirit that unites all life, everything that is on this planet. It must be this voice that is telling me to do something, and I am sure it'as the same voice that is speaking to everybody on this planet at least everybody who seems to be concerned about the fate of the world, the fate of this planet. Wangari Maathai-Noble Peace prize winner, Deputy Minister of Environment, founder Green Belt movement in Kenya...."
The wealth of the nation
by Earth Day, Gaylord Nelson
"...The wealth of the nation is its air, water, soil, forests, minerals, rivers, lakes, oceans, scenic beauty, wildlife habitats and biodiversity that'as all there is. That'as the whole economy. That'as where all the economic activity and jobs come from. These biological systems are the sustaining wealth of the world...."
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Salary
about Steve Jobs
Steve Jobs' annual salary was $1, just enough to keep company health benefits.
Drug Abuse
about Facts about Drugs
Facts about drugs can protect against drug abuse. Legal drugs, such as alcohol and tobacco, kill more people than illegal drugs. Tobacco (smoking cigarettes) kills more people than any other drug. Illegal drugs including heroin, cannabis, ecstasy and amphetamines can have unknown or dangerous ingredients. Mixing drugs, especially with alcohol, can be fatal.
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