Correction to last week’s Wupdate: *Allison “How did the independent study go this week, Gus?” Well, before my meeting this week I had been confused about what exactly I was supposed to be looking for in the literature. Essentially, what I had been looking for was what we plan to publish. I couldn’t find anything … More Wupdate #2
Over this past week, I continued the work on my ink synthesis. First, I took the original three inks I made with no gum arabic (DI water, Rain water, white vinegar)–I have yet to do this process with the 1:1 HAc: H2O ink, although I’m not sure it’s necessary–and broke each of them up into four … More Caren Sullivan–Oct. 28th, 2015
Communication with hyperterminal was successful this week. The viscometer was able to respond to such commands as displaying the current temperature and viscosity. This means that the USB wiring is correct as was verified by Tyler over the summer. The communication program in Labview still repeats the input, but is no longer having timeout errors, … More Ben Clark Update- October 27, 2015
This week I did a little bit of exploration. First, imagine Alison having this gigantic stovetop. There are all sorts of things cooking — including delicious pear jam. Well if you go about 8 rows back, you’ll find the backburner. Being the curious soul that I am, I found it appropriate to give one of those pots … More Wupdate #1!
This past week I unfortunately have not been able to be in the lab much as I was studying for the GRE (which I am taking tomorrow morning!). However, I did some research on the chemistry behind my iron gall ink synthesis/fermentation. I found that gum arabic (the binder) is a bipolymer of arabinose and … More Caren Sullivan–October 21, 2015
During this week there were lots of meeting and discussion with Daniel in the Stockroom and Mr. Frahm. We have come up with quite the solution for the hardware adjustments. A RS232 db9 to 9 cable has arrived today and LeRoy will be providing crimpers allowing the wires to connect without sauntering so that the … More Ben Clark- October 21st 2015
Throughout the past week, I accomplished several goals with my research project, but also encountered a few new problems. First, I took the four types of iron gall ink I’m fermenting (distilled water, rain water, distilled white vinegar, and a 1:1 ratio rain water: distilled white vinegar) and broke each bottle up into 3 smaller … More Caren Sullivan–Oct. 14th, 2015
Through the first week the main goal was to determine the problem in the serial communication between the viscometer and the computer. Through a pinout analysis through the components, the problem was narrowed down to the 2 pin port installed in the side of the glovebox. This turned out to be a straight pathing from … More Ben Clark – Oct 13, 2015
This week has been a challenge. The alignment laser in our Bruker FT-IR is ironically out of alignment. After a meeting with John “Laser Extraordinaire” Brandenburger, I think I have a game plan. I have attached an oscilloscope to the instrument to see if I can find the signal, which should be a sine wave. … More Allison – Oct 9, 2015
Greetings and welcome to the Fleshman Lab website from Lawrence University! Here you can find the latest research happenings in all things physical chemistry. I hope you enjoy!