Experimenting with Materials
I’ve been having trouble getting the specular highlights to show up on translucent ellipsoids, so I decided to create a program to let me vary the material colors and light strengths with sliders. I...
View ArticleVisualizing Rotation of a Rigid Body
My fans (yes, both of you! Or am I down to one? zero?) may be wondering where I’ve gotten to. I’ve been working up a visualization program for a conference in Nanjing, China. Back in grad school, I...
View ArticleVideo!
I’ve figured out how to make movies from my OpenGL animation, and I’ve posted a video on YouTube, here. I’ll be giving a talk on the work on Monday, January 24th at CU Boulder, at the Astrodynamics...
View ArticleDetermining Photogate Timing Uncertainty
Determining Photogate Timing Uncertainty In order to do an uncertainty analysis of Front Range’s conservation of momentum experiments, we need to determine the uncertainty of the times reported by the...
View ArticleBiscuit B. Collie, 2002?-2017
Old age finally caught up with my Border Collie, and I had to put her down around 1:00 am, Saturday, September 23. She’s been a wonderful companion since I got her in July, 2005, through an informal...
View ArticleFirst Vet Visit: Puppies!
About a week after getting Biscuit, I figured that things were working out well, and she was a keeper, so I’d better take her to the vet and get her spayed before something happened. The vet, Chris...
View ArticleMoroccan Meskouta Orange Cake
I made this for a cooking meetup’s Moroccan-themed dinner. I had a couple of requests for the recipe, so here are the details. Ingredients ½ cup/120 ml freshly squeezed orange juice Zest of 1 or 2...
View ArticleMaking a Line Chart for iOS
I wanted to be able to draw a chart for a Swift playground without having to add the full Core Plot or Charts frameworks, and found a tutorial on Medium here on Medium. It was not quite two years old...
View ArticleCoyotes!
Sunday, April 30th: On our morning walk, we ran into a coyote! After the alarm went off at 6:00 am, I got dressed for our morning walk. We crossed the street to the park, and then crossed the creek and...
View ArticleUnit Testing
Here’s the Keynote file from my talk at the Denver Swift Developers meetup: Unit Testing in Swift Updated
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