New books and old Published on February 20, 2024February 18, 2024 by fivecolorssandt@icloud.com Adding and subtracting We have too many books, but sometimes we add more. Read More
Choosing classes (I) Published on January 9, 2024January 7, 2024 by fivecolorssandt@icloud.com Supply and demand Choosing next year’s classes can be a puzzle for High School students. Read More
Rewriting the textbooks Published on August 8, 2023August 7, 2023 by fivecolorssandt@icloud.com When, and why We take a tired cliché seriously. Read More
A simpler theory (II) Published on July 11, 2023July 9, 2023 by fivecolorssandt@icloud.com Writing down the equation We notice how mathematical notation affects scientific progress. Read More
Has it been done? Published on May 30, 2023May 28, 2023 by fivecolorssandt@icloud.com The literature search We describe a necessary but sometimes tedious step in scientific research. Read More
A prestigious journal Published on April 11, 2023April 10, 2023 by fivecolorssandt@icloud.com More on science publishing How did it get this way? Read More
Science and economics Published on March 21, 2023March 20, 2023 by fivecolorssandt@icloud.com Publishing and paying Does it make sense? Read More
Big data Published on March 14, 2023March 13, 2023 by fivecolorssandt@icloud.com On automatic We point out dangers in succumbing to routine. Read More
Round numbers Published on February 28, 2023February 27, 2023 by fivecolorssandt@icloud.com An even ten-thousand We note an almost unknown milestone. Read More
A matter of time Published on December 13, 2022December 11, 2022 by fivecolorssandt@icloud.com The big project We find that time is not infinitely divisible. Read More