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Author Archives: dougaj4
Fine as a Bee’s wing
Beeswing is song by Richard Thompson, said to be about, or at least inspired by Anne Briggs. Here is what the man himself says about it: “RICHARD THOMPSON: I wrote the song Beeswing kind of about her. There was a … Continue reading
Rotating Hypercubes
The discussion of dancing pendulums in javascript at SSSF led onto Rotating Hypercubes, which resulted in this javascript animation by forum regular mollwollfumble: 4D Rotations (click to view in a new window, right click to download javascript file) See the SSSF thread for discussion on … Continue reading
Yet more pendulums
Following Dynamically Defined Dancing Pendulums, another three versions of the dancing pendulum theme. First a POV-RAY version by PM 2Ring, complete with reflections and shadows: POV-Ray Pendulums (click to open in a new window) and an interactive Javascript version: Javascript pendulums by PM2Ring (click … Continue reading
Posted in Animation, Excel, Newton, Ray Tracing
Tagged Chandoo, Excel Hero, javascript, Pendulum animation, PovRay
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Debugging VBA …
… especially User Defined Functions (UDF’s). This post (and most likely several to follow) was prompted by a recent discussion at Daily Dose of Excel about various alternative debugging techniques. It reminded me (if I had ever known) of the Debug.Assert … Continue reading
Dynamic Maps
Some sites providing information about the world in the form of regularly updated maps: NASA Earth Observatory Includes regularly updated satellite images and maps of satellite obeservations: USGS Earthquake Maps: Planefinder: Locate planes equipped with satellite identification equipment, including flight … Continue reading
