Day 18

In the morning I helped run a few tests on the commercial oil paints that we thought had paramagnetic signals (ultramarine, burnt umber, burnt sienna and, viridian). Then the rest of the group explained to me what they did on Friday (they scanned the dollar bill and took more data points to create a higher-resolution image). After that we went and started shifting the starting points for the rows of data on the dollar bill so that the image was clearer. Dr Hornak then brought in his spare tire so we could test it. We tested the tire and did not get a signal. We also recorded the background signal (when nothing is on the MOUSE). After lunch I worked on my presentation. Then we worked with excel to analyze the data we collected. We found that only the ultramarine paint out of all the commercial paints we tested had a signal (it was small, though). We then looked at the background signal we had recorded and decided to try and clean the probe in case there was some magnetic ink on it from the dollar bill that was interfering with its sensitivity. After doing that we tested the commercial paints again.
Here is the image we created after tracking the ferromagnetic signal across the dollar bill with the MOUSE: