Positive and Negative

Much of my discussion of radio has avoided the technical, such as how electricity flows. Initially, scientists guessed that it flowed from positive to negative; later, it was generally accepted that electricity flowed from the negative (which had an excess of electrons) to the positive (which had a defecit). It made sense, and generations of science teachers taught generations of students that this was the case.

Like most things in life, it’s a little more complicated.  Actually, the theory that seems to be most plausible is that electricity flows in both directions; the negative electrons in one, the positive atms in the other. However, even this is an over simplification as well [check out this article].

The beauty of science is that most ideas are described as theories, which is to say, beliefs. This means that with additional knowledge, the theory may need to be adjusted or even abandoned. It is seen as an advancement when an old theory is updated, not as an attack or a loss.

Might be useful in everyday life.

If I don’t blog as often, it’s because I really want to get a story I’m working on finished–and it’s got a long way to go. The characters are beginning to complain and are threatening to go on strike. I guess it’s only fair that we meet halfway.

 

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