You are here: Home / math February 2019 continues to pay for itself. And we haven’t even gotten to Tiger’s misadventure yet! I understand. We weren’t actually together speaking of math, but Rocky & I were, so… . 77 – 29 = 48. A 48 degree drop in temperature from yesterday afternoon to this morning. More layers! And speaking of math–
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I have no original thoughts this morning so I wondered what I was thinking around this date in years past. And look what I found! At the end I comment on cleaning my desk. I actually remember doing this. It was over loaded with books. What’s amazing is that I’ve managed to keep it underloaded.
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I had to vacuum the Den and the master bath before I figured it out! Solution below the fold. To clarify a bit. Each of the four shapes has one value (positive integers). The numbers in each of the eight figures are the sum of the shape’s value PLUS the values of the shape(s) it
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is impossible. You can square pretty much all other shapes, even lunes (crescents) but you cannot square a circle because our old friend pi is a transcendental number. Now you know. And now I will return to a project I began earlier this morning. Trust me when I tell you that the folk who are
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sure were smart. This is a fun course. Good exercise for the old neurons. I especially like the proof showing that the square root of 2 is an irrational number. And I will be honest and tell you that I was stopped dead in my note taking when it hit me. I wrote: RATIO RATIONAL
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A new book with equity-based lessons for high school math teachers has become a bestseller. Some districts are looking at teaching math through a “social-justice lens,” writes Gewertz. “The Seattle school district developed a framework last year that weaves questions of power and oppression into math instruction, along with explorations of ethnic identity, but it
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So this is how I compromised: That pic of a slide rule is gone. I can do much better. In the read through of The Companion Book Mr. Big Food took exception to my exposition of how slide rules work. And I did not want to omit talk of logarithms. so this is what I
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Also did this over the weekend in between video taping the Italian post-doc and Mr. Big Food’s 3-minute 200mb poster blurb which had to be whittled down to 44mb. A slide rule is a handheld mechanical devise used to make mathematical calculations. The modern version was invented in 1859, but older versions were around in
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Mr. Big Food and I got into a fight this morning. Suppose you’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what’s behind the doors, opens another door, say
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2 X 3 = 6 Came with a very nice leather case. I GOT IT!! Kinda sorta. Oh. For you youngins, it’s called a slide rule. It’s how we did math– all math– before the invention of the handheld calculator. Also in the mail today, Thomas Jefferson’s Garden Book 1766-1826. Carry on!
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“I can remember Bertrand Russell telling me of a horrible dream. He was in the top floor of the University Library, about A.D. 2100 . A library assistant was going round the shelves carrying an enormous bucket, taking down books, glancing at them, restoring them to the shelves or dumping them into the bucket. At
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Thanks to The Scientific American Book of Mathematical Puzzles and Diversions (1959) I have learned that the number 1729 is interesting. “It is the smallest number expressible as a sum of two cubes in two different ways.”
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On the empty matrix, cover a random number with a penny. Cover all of the numbers in the same row with a paperclip (or whatever you have). Cover all of the numbers in the same column with a paperclip. Pick another number and do it again. Then do it twice more. You’ll be left with
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His current favorite book is Winnie the Pooh, and he loves to play outside. He sleeps with Seven, his stuffed dog. His chore is feeding the cat, Sadie. He’ll be four in July. Also, Miss M had to change the YouTube settings recently. He was searching for “xxxxxxx.”
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The point about zero is that we do not need to use it in the operations of daily life. No one goes out to buy zero fish. It is in a way the most civilized of all cardinals, and its use is only forced on us by the needs of cultivated thought. Alfred North Whitehead
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Thinking about last evening’s movie, A Beautiful Mind, let me to thinking about mathematicians and mathematics in general which led me to The World of Mathematics Volume Four: A small library of the literature of mathematics from A’h-mose the Scribe to Albert Einstein Presented with some commentaries and notes (1956). In a short essay, “Assorted
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I have never been to the equator, but I’m pretty sure that vehicle is not at a location on the equator. Take that back. A quick spin around the globe and I see there’s a desert in Kenya right about at the equator, but given the stickers are en Español… ? Let us hark back
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I understand. We weren’t actually together speaking of math, but Rocky & I were, so… . 77 – 29 = 48. A 48 degree drop in temperature from yesterday afternoon to this morning. More layers! And speaking of math– I witnessed the most amazing thing yesterday at the SuperLu. (That’s the SuperValu grocery in town
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Smaller than half a sheet of 8½ x 11 paper. Fewer than 70 pages! And for real printed in the USSR (second printing, 1984). Look what poor quality paper. I even inserted a blank sheet of paper under that page to get rid of some of the bleed through. I do believe it’s the only
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Via Powerline’s The Week in Pictures
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