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#26
August 22nd 03, 12:24 PM
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W5DXP wrote:
wrote: Ahhhhh, finally. The not unexpected descent into non-sequitors. Much safer than actually thinking about questions which might cause you to change your world view. Oh, and allow me to add: Like my EE prof at Texas A&M in the 50's, I consider instantaneous power to be a completely useless concept, fully appropriately related to how many angels can dance on the head of a pin. After all, how much power can traverse a point in zero time? Hint: energy per delta-t if t=0 is zero! I will never forget my prof's words: "Instantaneous power is about as useful as tits on a boar hog." But I have an open mind - please convince me that you are more brilliant than the head of the EE department at Texas A&M. Are you sure you want to discard instantaneous power? For consistency you will also have to discard: instantaneous velocity - distance per time instantaneous current - charge per time. It will be difficult to have sine waves if the instantaneous current is always 0. and inumerable other examples And for consistency, you will also have to toss calculas, the art of the infinitesimal, which will make solving most engineering problems significantly more difficult, if not impossible. Even your oft quoted expression, P = V * I * cos(theta), was derived using calculus from the instantaneous P(t) = V(t) * I(t). Are you sure you want to discard all thoughts of the instantaneous? As to 'the head of the EE department at Texas A&M', he has either been mis-interpreted or he is wrong. Not wishing to cast aspersions on his brilliance, I suspect the former. ....Keith |
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