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Happy New Year! The lake is frozen over, and despite the thin layer of
granular remelted snow on its surface, it is skateable, so I will be
out on it later today. It is -10 degrees C here in Burnaby, very cold
for this location. There is much interesting physics to be observed at
this time of year, including my old favorite, the dispersive chirp
heard when a distant hockey stick strikes the ice.
How about a new topic? A list member who read the gyrogenerator series
asked me: "Could you say some more about what you mean by impedance
matched loads?" It happens that I have a great long standing interest
in this topic, so I'm going to try to interest the rest of you.