Brandt's Tumbling Log
This is a tumbling log of things and thoughts that pass my way.
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I’m watching TV with my family. A particularly insipid commercial comes on, and I say, “Can you imagine being in the room where THAT idea was presented?” This is now a common refain in our family.
I was there, so I know.
I Was A Mad ManI love the inverse square law
Taking my headphone amplifier, which was two feet from my iPhone cradle, and moving it to another spot four feet from my phone has reduced the GSM interference in my headphones from “intolerable” to “inaudible”. Which is great, because there’s a paint crew scraping my house prepping it for new paint, and I happen to be working from home this week on a critical project, so I was in desperate need of some sort of auditory isolation.During the Russian revolution, the mathematical physicist Igor Tamm was seized by anti- communist vigilantes at a village near Odessa where he had gone to barter for food. They suspected he was an anti-Ukranian communist agitator and dragged him off to their leader.
Asked what he did for a living he said that he was a mathematician. The sceptical gang-leader began to finger the bullets and grenades slung around his neck. “All right”, he said, “calculate the error when the Taylor series approximation of a function is truncated after n terms. Do this and you will go free; fail and you will be shot”. Tamm slowly calculated the answer in the dust with his quivering finger. When he had finished the bandit cast his eye over the answer and waved him on his way.
Taylor Series—a matter of life or death (via 3QD)