LED Christmas Lights

For any given product, it is always interesting to see which aspects are improved and which languish.  Engadget’s recommendation of the best LED and incandescent Christmas lights highlighted this; the difference between the LED and incandescent strands is almost entirely restricted to the bulb (and associated electronic driver). Looking carefully at the above picture, the […]

Electron Beam FreeForm Fabrication — IN SPACE

In the last post I described the basics Electron Beam FreeForm Fabrication (EBF3), here’s why I’m excited about it: Let’s walk through this process: Metallic Refuse Life and research aboard the ISS requires a lot of supplies and results in good amounts of waste.  This is the most expensive garbage in the world, and, due […]

Electron Beam FreeForm Fabrication (EBF3)

There are many cool things happening in 3D printing these days, but the technique I’m most excited about, electron beam freeform fabrication (EBF3), has received very little coverage.  So in this and following posts, I want to describe the basics of this technique and some of the cases where I think it is the ideal […]

Pandora Bounties

I’ve used Pandora for many years and its selection is persistently limited in some genres of music I’d like to hear more of.  So given this, why can’t it offer bounties for creation of new music? In my experience, liking or disliking more than every fourth track quickly leads their algorithm to overfit and play […]


—Acronym says it all: The Lunar Exploration Vehicle for Intraplanetary Transport and Terrestrial Expansion. An enormous project, but a good time. The EMA senior design spans two semesters; the first develops an idea into a consumer product, while the second tasks us to design an airplane, submarine, or spaceship. Last semester I developed BoomAlert, a […]