I could turn this post into a commentary about the importance of doing a thorough literature search, and despite how thorough you think your literature search is, it is not thorough enough. Alternatively, I can make some Star Wars references; let’s go with that.
Soon, my wife and I will buy our first home.My wife and I just bought our first home. I have been looking at videos on how to paint rooms and found myself looking at periodic-table wall-art. I came upon this website which was coincidentally published one year ago today. Until now, I had not seen an RGB blinky-light periodic table besides Mandy, and it appears as if Mandy was coming to life just as apaf1 (send me your real name and I’ll edit, if you wish) was completing his project. What does that mean for Mandy?
I am teaching Mandy to sing (sort of). Here’s Mandy playing along to Carol of the Bells in what may be the worlds “first” Periodic Table spectrum visualizer. Now, before we blow up the Twitter sphere with allegations that Mandy belongs on the Top Ten List of Most Infamous Lip Syncing incidents, I’m not claiming that this is live. Mandy wasn’t designed to do real-time spectrum analysis (she’s a Periodic Table, after all) but I wanted to see if some geeky visualizations would be possible. So, I created my own version of Carol of the Bells (written in Sonic-Pi) and then analyzed the audio file using Mathematica, which has a neat function, SpectrogramArray, that provides easy access to the frequencies in an audio file. I then binned the frequencies into 118 buckets – one for each element on the periodic table, and converted the intensities into colors (blue for high amplitude, red for low amplitude). I probably should have thought a bit more about which elements should display which frequencies, but time was running short so I simply made the heavier elements have the lower frequencies. In any case – enjoy.
A while back, my wife knitted me a BB-8 which was pretty awesome. What’s even more awesome is that she used that pattern to knit me a BB-9E. He’s bigger, blacker and badder. Now I’m ready for The Last Jedi!
I asked my students what these silly things on the back of their phones were, and why they were needed. Apparently, phones are sufficiently heavy that you’ll drop them on your face while trying to read/text while lying down. They also seem to help with taking selfies. It turns out that they were thought up by a philosophy professor so tell that to your Mom and Dad when they ask why their paying so much money for your liberal-arts education. Heck, I’ll even give you some inspiration, because one of my students bought me my very own popsocket (I feel sooooo millennial) and I just had to customize it.
A few weeks back, my wife (Rozenn) came home with a broken cane chair, which looked something like this, and wanted to try repairing the seat. A few tours through youtube videos, a visit to Amazon and some time with my Dremmel (she’s logged more hours on that thing than I have) and she managed to replace the seat. Even I can sit in it!
Now that it’s completed, I think we both agree that the project was very doable. The hardest part was removing the old spline (don’t believe those Youtube videos where it comes out with one tap of a chisel). Once the spline was removed, however, the rest of the process was a breeze. Yard-sale season may be wrapping up, but I’m sure we’ll find a few more broken chairs at rock-bottom prices that will not only give us a fun project, but also result in a nice-looking chair in the end.
The staff over at the Wolfram Community have recognized Mandy – the bright Periodic Table as one of their Staff Picks. The forum post, which can be viewed here, highlights how Mathematica was used in various parts of the project. In the design phase, Mathematica was used to create the layout of the periodic table, which then could be exported to Inkscape/Adobe Illustrator for final processing of an image that could be recognized by the laser cutter. The curated data provided by the Wolfram platform is used to create the trends, and I used some notebook Manipulate commands to visualize the RGB-LED output for (rapid) rapid prototyping. The actual operation of Mandy uses a Python-based speech recognition script that calls on Mathematica to communicate to the Arduino controlling all of the LEDs. (Yes, this is an ‘everything but the kitchen sink’ project.)
I just recently completed my move from Chicago to Brockport, NY. Happily, all of our belongings survived the move more-or-less undamaged, and we are close to having everything unpacked and in its new location. One problem we had during the unpacking was the box spring for our bed; there was no way that a queen-size box spring was going to make it through the small space occupied by our stairway. The box spring is ancient and we had intended to leave it in Chicago, so purchasing a new one was in the plans. I didn’t realize what a pain it would be.
We have been busy with our move to Brockport, NY. More importantly, we have just finished getting internet installed so the website can be updated! Trying to conduct a cross-country move over a national holiday has its challenges, but one advantage is that it feels like your new home town is throwing a welcome party!