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Author: Cheryl Rofer

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A Crow Post

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On December 23, 2022
Dan did a cat post a while back. That didn't catch on, so here are some crows. I noticed that the suet block was disappearing from one of the suet cages on my birdfeeding station. Not being eaten down, but there at one point in...
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Information Theory

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On December 19, 2022
Several decades back, Claude Shannon defined information theory. Here’s a short description that partakes of some of the hype that has always surrounded information theory. Back in the 1950s and 1960s, Shannon’s “A Mathematical Theory of Communication” served the purpose that “quantum” does today. It...
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Laser Fusion Milestone

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On December 13, 2022
Representation of laser fusion. The central sphere is the target, also called the capsule or pellet, that contains the deuterium and tritium whose nuclei are to be fused. The blue lines are laser input. The ghostly cylinder is the hohlraum, which concentrates the laser input...
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Artificial, Not Intelligent

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On December 6, 2022
For the past few days, my Twitter feed (yes, it’s still there) has been cluttered with dialogs with the ChatGPT chatbot. Some are on the level of polite and trivial human conversation: the form is correct, but not much fact. Where fact is called for,...
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