(Last Update: 2014 January 23 16:13 PST )
I challenged students to come up with possible design projects:
Turn in by e-mail by midnight Friday, 2014 Jan 10: Look on-line for projects that might be interesting to design or build this quarter. Look at sites like Pasco and Vernier for ideas about what schools with money have in their labs. Look for do-it-yourself lab equipment ideas on the web. Turn in an annotated list of URLs for interesting sites as plain text, cut-and-pasted into e-mail to karplus@soe.ucsc.edu. The annotation need not be extensive—a sentence about each web site, telling us what project(s) it has information about should suffice.
Here are the responses from students, lightly edited and reformatted to get a little consistency. I'll gradually add comments as I get a chance to look at some of the web pages. I'll try to make my comments stand out visually (perhaps italics and a color change?).
This video showcases an excellent design for a high-powered centrifuge: http://www.youtube.com/watch?v=v3sF11vXLsU
My idea: create synthetic pigs/frogs/cats/other living things that are raised and killed so that students can dissect them and learn about their anatomy.
As far as I can tell, no one has yet tried this. This may be because it is too difficult/expensive to try. However, I thought it would be a great solution to the ethical problem of raising life and then promptly killing it for none other than our own benefit.
The first link shows data about how, in some cases students learned and performed just as well using a virtual dissection program (online) as those who dissected the animals themselves. However, in some cases those who used the virtual dissection (examples I found of virtual dissections are from link 2) did not do as well as those who had actually dissected.
For this reason, I think it would be worth it and beneficial for all living beings if we were able to construct synthetic animals for the purpose of dissection. That way, students are not being neglected information and living beings are not being raised and killed for our own knowledge.
The site http://teach.genetics.utah.edu/content/build_gel_box.pdf gives detailed instructions for building a gel box (without needing a laser cutter). They use disposable wire electrodes, though they warn that "If you use copper wire, it will react with the electrophoresis buffer, turning the buffer blue." http://cheapassscience.wordpress.com/2011/10/05/electrophoresis-electrodes/ discusses one persons experiments with different electrodes. The gel box that this was for is described (with detailed instructions) at http://citizensciencequarterly.com/2011/10/cheapass-science-gel-box/ Interestingly, he did not try Ag/AgCl electrodes, which are not difficult to make and much cheaper than platinum. (We make and characterize some Ag/AgCl electrodes in BME 101/L). Even with platinum wire, the gel box is much cheaper than commercial ones. We would have to design the power supply for the gel electrophoresis also.
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