Because I am a scientist (self-proclaimed or otherwise) , every so often, I will go into the mode I call AIM. Here's the first:
Everyone uses electricity, and everyone has some knowledge of electrical resistance. But what is it? Here is my explanation.
Imagine a soccer match in a big stadium. The home team's greatest fan, Pierre, is always early, and runs straightaway down the empty terraces to the barrier, unopposed by any other fans. This is the equivalent of zero resistance, and is found in superconducting ceramics. at extremely cold temperatures. But what if Pierre is on time? Well, he has to jostle with the other early people and barge his way to the front. This is resistance is normal as at room temperature. The current (Pierre) finds it ok to pass through, but has a bit of trouble. However, one Saturday, he arrives late, but just as the away team scores. The crowd is silenced, and he finds it easier to get to the front., because the fans are not moving, just standing still in shock. This is resistance is low, and it happens at cool temperatures. However, Pierre is unlucky because the home team scores just when he wants to go to the bathroom. He finds it hard to move because the other fans are jumping around, hailing their team. This is resistance is high, and happens at high temperatures.
One Saturday, however, he is extremely late arriving at the game, because he was introducing his sister , Ann, to the delights of Star Trek and their collective enemy , the Borg.
He rushes down the terraces only to find nobody there. No players, no crowd, nothing. Only a battle scarred pitch and a large display screen with three words.....Resistance is futile.
Saturday, April 09, 2005
Akiko Inspired Moment #1
Attested by
AkiToo
at
4/09/2005 07:46:00 pm
Labels: Physics
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