And now it's all this
And now it's all this
Dr. Drang
I just said what I said and it was wrong or was taken wrong
Latest Posts
[Equations in this post may not look right (or appear at all) in your RSS reader. Go to the original article to see them rendered properly.] I thought some of you might be wondering about the dimensions on this drawing from yesterday’s...
[Equations in this post may not look right (or appear at all) in your RSS reader. Go to the original article to see them rendered properly.] Here’s a geometry puzzle from the March issue of Scientific American. If you see the trick, it’s...
Yesterday was Chinese New Year and today is the first day of Ramadan. Both of these dates are based on yesterday’s new moon, so I thought it would be fun to write a little script to see how often the dates coincide. I used Emacs Lisp,...
Apple’s *OS 26 icons have been getting some well-deserved criticism over the past couple of months. There was Jim Nielsen’s complaint about menu icons in macOS. Then came Nikita Prokopov’s more detailed criticism of those same icons.1...
[Equations in this post may not look right (or appear at all) in your RSS reader. Go to the original article to see them rendered properly.] The inability of Claude and (especially) ChatGPT to extract data from the chart discussed in the...
Paul Krugman included a terrible plot in his Substack post this morning. It’s meant to support his contention that Kevin Warsh, Trump’s soon-to-be nominee for chair of the Federal Reserve, is a political hack. It does, but it’s still...
A few days ago, I was poking around in Apple’s Weather app and came across some interesting stuff hiding behind the sunrise/sunset box. First, there’s a plot that shows the movement of the sun throughout the day, followed by sunrise and...
In his excessively long speech to the World Economic Forum yesterday in Davos, Donald Trump did some surprising backtracking. Not the stuff about Iceland Greenland, but on his method of calculating price reductions. For weeks—maybe...
The Midwest is expected to have very cold temperatures this weekend, which got me thinking about burst water pipes. Water expands about 9% as it freezes, and a lot of people think it’s pressure from the outward expansion of ice that...
[Equations in this post may not look right (or appear at all) in your RSS reader. Go to the original article to see them rendered properly.] At the end of last week’s belaying post, I said we’d look into the condition in which the...
My apologies to those of you hoping for another pulse-pounding post on the mechanics of belaying, but I’m going to talk about Apple again. The belaying follow-up should come out this weekend. What prompted this post was being chastised...
[Equations in this post may not look right (or appear at all) in your RSS reader. Go to the original article to see them rendered properly.] I’ve been bothered by this little physics problem for a couple of days. It appeared on Rhett...
I strained my right thigh and hip this fall doing something, but I don’t know what it was. Eventually, after several weeks of thinking it would work itself out, I decided it wouldn’t and started going to physical therapy. Several of the...
Do you remember the Acid Tests? Not Ken Kesey’s Acid Tests; even I’m not old enough to remember those; I only read about them in Tom Wolfe’s book. No, I’m talking about the tests that checked browsers on how well they complied with web...
After writing this morning’s post, I went down to Channahon for a walk along the I&M Canal towpath. On the drive there and back, I thought about redoing the project in Python instead of Mathematica. It seemed like a fairly easy problem,...