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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?


To: neolib who wrote (22401)7/20/2008 3:40:17 PM
From: Brumar89  Read Replies (1) | Respond to of 36917
 
A dozen is too much of a time waste - here's 7:

Message 24772505
Message 24773511
Message 24637747
Message 24642104
Message 24620227
Message 24443394
Message 24313632



To: neolib who wrote (22401)7/21/2008 10:03:23 AM
From: Thomas A Watson  Respond to of 36917
 
Hey liarboy neolib with the MSEE, How about some equations and maybe even some circuit advice on my first fudge of a circuit for an analog computer to simulate the temp rising in a car in the sun. V(t)a is the air temp in the car. Ii is the energy in and Io is the energy out. The diode is actually two resistors each with own diode in paralell and reverse direction, not just a diode. Either resistor can have independent values from 0 to Gohms. Choose resistance and farads for caps for the correct time constants.