Gemini Links 31/01/2026: Deep Ice and Slide Rules

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Gemini* and Gopher
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Personal/Opinions
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Deadly depths
A moment of silence. A moment to hear my own thoughts.
I am standing on a frozen lake. In front of me is a flat, white expanse. Beneath me is twenty centimeters of ice, and beneath that, many meters of icy water. My mind tells me that I am safe, that even a truck could drive on ice this thick. However, I do not feel safe, and that is why I do not stray far from the pier. The lake speaks. It suddenly growls at me and hoots with laughter as it senses that I retreat, frightened. I did not expect any sounds, especially not ones that resemble the sound of breaking ice combined with thunder, the roar of a waterfall, and giant air bubbles rolling in the depths. After a while, I realize that these sounds occur regardless of whether I am standing on the ice or not. However, I am relieved to set my feet back on solid ground.
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Politics and World Events
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visiting the us
Have I mentioned I hate visiting the US? I feel dirty. I get sick. The amount of hostility you face entering the country is extreme, and they all seem ignorant of it.
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Science
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Slide Rules: Ratios, Square Scales, Power
This got me wondering what would be the simplest way to do this using a slide rule. Ratio problems are simple, but we have the square function as well to deal with. My first though was to look for an A scale. My Pickett N-16-ES does not have one. The next slide rule I pulled out, the POST VERSALOG, does not have an A scale, but it does have R₁ and R₂ scales. The idea is similar to an A scale, except instead of having two normal log scales squeezed into one scale, you have half of one normal log scale taking up the full length of R₁, and the other half on R₂.
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* Gemini (Primer) links can be opened using Gemini software. It's like the World Wide Web but a lot lighter.
Image source: Penguins on a Sea-Worn Iceberg Resembling a Whale
