My wife has been tending to these orchids for a number of years. When we were in Chicago, they looked kind of sad. They seem to like the Brockport air (which has much less traffic pollution, so I don’t blame them).
Click on the picture to get a bigger image. The purple orchid seems to be very pleased by finally having a non-south-facing window to sit in. Speaking of purple, today is Henry Perkin’s 180th birthday (thank you for honoring a Chemist, Google). Perkin is known for discovering a way to produce purple dye. His story, which is detailed in a very readable book by Simon Garfield, is worth picking up if you have a few hours to spare.
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!
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.
… that’s the title of an email I sent my wife when I came across this instructables page. She did, and now my BB-8 collection is growing. Thanks Rozenn! You’re awesome. I can’t figure out what Star Wars project I want you to make for me next; it’s too hard to decide.
Here’s the first published remix of my Open Millifluidic Inquiry System (OMIS) made by Thingiverse member Steve Gordon. There are a couple of nice tweaks, including the use of epoxy to keep the support rods in place (a semi-permanent solution, since many epoxies can dissolve in acetone, and since PLA was used in this build, OMIS won’t be permanently damaged by an acetone treatment). Another nice tweak is the use of automatic pipette tips instead of syringe needles to connect the syringes to the millifluidic device. I’ve got some projects that will involve acid in one of the channels, so I need to explore this hack further.
More information about OMIS, such as the bill of materials, build guide, and some ideas on how to use it can be found on my OMIS page.
Andy Brunning over at Compound Interest has created a great infographic to help explain some of the chemistry behind the Flint water crisis. The graphic is below, but I strongly encourage you to take a look at his full article
Andy’s post introduces a lot of concepts that could be incorporated into a Chemistry lecture, making it a potentially valuable resource for connecting what students may find as esoteric concepts to real-life situations. Check out the full article while I jot down some ideas for exam questions….