Originally I had wanted to measure my galvanic skin response (GSR) while watching television to see if there was a correlation between my hand-sweatiness and movie drama. For the data logging/graphing assignment, I opted instead for my finger temperature. I frequently have ice cold hands and I wanted to see if there was a correlation here as well, perhaps to the media I was consuming.
I purchased a GE MA100GG232C thermistor (data sheet) for this purpose, with a range of 32-122ºF. I couldn't get accurate readings at first so I calibrated it through a system of my own devising, using data points for ice water (< 32ºF), internal body temperature (98.6ºF), and boiling water (> 122ºF). The collected data for my middle finger is displayed below, with error of ±0.36ºF.
- 7:22 PM - Shark Tank (Uncle Zip's Beef Jerky)
- 7:33 PM - Shark Tank (Hill Billy clothing)
- 7:52 PM - Shark Tank (The Broccoli Wad money clip)
- 8:04 PM - Winter Olympics (Snowboarding, Men's Halfpipe)
- 8:40 PM - Winter Olympics (Figure skating, team short program)
- 8:51 PM - Ate two Saltine crackers
The data suggests that, though my finger temperature continued to drop throughout the night, watching The Broccoli Wad on Shark Tank may have slowed the decline. Ambiguous conclusions can be drawn about the Olympics portion of my viewing, but it seems clear that the beginning of the figure skating caused a noticeable increase in temperature. Additionally, I thought that eating something would increase the temperature, but it actually decreased it quite a bit.
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