Geo, Space, Data… Science
As part of an environmental monitoring system for an observatory, I wanted to include a measure of ambient light. Ostensibly, this is for safety reasons. However, I must admit that I really just want to see if I can (coarsely) measure sky brightness. There are a number of inexpensive light sensors available from AliExpress/Amazon. The…
I’ve wanted to build a cloud sensor for years now, but never actually found the time to do it. So, after seeing IR sensors for something on the order of $5 a piece, I ordered a couple and thought that I’d give it a shot. This has undoubtedly been done by lots of other people,…
My academic work focuses on meteors. Visual (and sometimes radar) observations of faint meteors. For this, the general requirement is a sensitive video-rate camera with a moderate field-of-view. The traditional solution (after eyes, photograpic plates, vidicon, etc. ) was to use an analogue security camera with low-light sensitivity. For many years, this was the Watec…