Rozenn had bought some awesome periodic table fabric (which I got for my birthday a few months back) and she finally had the time to complete a pair of periodic-table pillows for my office. They are awesome.
There’s still plenty more fabric, so I suspect there will be another set for my home office as well.
I recently purchased the AMG8833 thermal camera breakout from Adafruit. It’s an 8×8 pixel array of sensors that can be used to incorporate thermal vision into a project. I’m interested in monitoring a thermoelectric cooler. Adafruit provides a number of examples on how to interface the breakout with a Raspberry Pi or display connected to an Arduino. I wanted to try a different interface and see if I could control it with Mathematica. It took me longer to write this post than it did to write the software.
Temperature of 30×30 mm2 Peltier cooling device being measured with an AMG8833.
Read on if you’re interested in learning more
I’ve just gotten back from another wonderful BCCE conference (that’s Biennial Conference on Chemical Education) which was held at Notre Dame. It was a great opportunity to catch up with some friends and colleagues that I’ve missed since leaving CSU last year to join the College at Brockport.
I presented some of the work I’ve been doing on 3D printed periodic tables and will blog about their construction and use in the near future. There were some folks in the audience who wanted to get started right away with the objects, so I’ve posted them here on my website. You can download a zip file that contains 19 tables (about 3 MB).
The zip file contains the following periodic trends:
- atomic radii
- ionization energies
- electron affinities
- human abundance
- exceptions to the aufbau principle
- absolute (Pearson) hardness
For the first four, there are four different sizes
- 132×76 $mm^2$ table with title, f-block elements and symbols on each of the blocks. These objects take about 3 hours to print.
- 150×21 $mm^2$ table with no title, no f-block elements and symbols on each of the blocks. These objects take about 2.5 hours to print.
- 108×36 $mm^2$ table with no title, no f-block elements and symbols on each of the blocks. These objects take about 2 hours to print.
- 60×24 $mm^2$ table with no title, no f-block elements and no symbols on the blocks. These objects take about 45 minutes to print.
As I build a collection of posts and materials for 3D-printed periodic tables, I will collect them here, so if you have interest in this project, bookmark that page.
Now that my students are wrapping up their summer research activities, it’s time to share some of my new designs. This one is inspired by my students – they wanted to design and 3D print keychains – and Rozenn’s request to have name tags for our plants.
Rosemary, thyme and sage, with a bit of patriotism to boot.
Read on to see how I designed these, which involved a little bit of magic for the swash ornament.
Our hummingbird feeder was inundated with ants. While there are plenty of commercial options available for solving this problem, I wanted to try my hand at designing my own solution. In thinking about how a water trap should be designed, I came up with the following critical elements.
- A leak-free cup for the water (duh)
- An upper attachment point that prevents tipping of the cup
- A lower attachment point that is integrated into the monolithic design.
Here’s the result.
I’m not fast enough with the camera to take a picture of a hummingbird.