Spinning Glass Simulation

I read recently about a question someone got asked in a technical interview for a mechanical engineering position at Apple. It went something like this: Suppose you had a rotating plate, like a lazy susan, and put a glass of water on it towards the edge of the plate. Suppose the plate started rotating, getting faster and faster, though the acceleration is slow enough that … Continue reading Spinning Glass Simulation

Mandala Coasters

I wanted to make a good friend of mine a house-warming gift. I wanted something that was elegant, useful, and took advantage of the free tools I had available: 3D printing, laser cutting, vinyl cutter. I saw some very cool 3D mandala designs on Thingiverse, but didn’t think they were particularly practical as coasters, neither do I think 3D printing coasters is particularly cost effective. However, … Continue reading Mandala Coasters

IoT Light Sensor: There is Data!

One of my goals for the IoT light sensor was to explore graphing live data. Phant, the Sparkfun service I’m using to post my data online, has an example of graphing live data with Google Charts. Since I know nothing about coding for the web save some outdated html and css knowledge, I used their example code as a template for what I wanted to … Continue reading IoT Light Sensor: There is Data!