[this is school]

today I did the lab, the power of sound. Clara, Gemma and I used Logger Pro to track magnetic currents. We first just held a nail above the sensor.. and it picked up a signal and we recorded it.. second time, we wrapped a wire around the nail 3 times and recorded the signal data. the wire was attached to a flash light battery.. We did the same process each time, for wire wraps 6,9,12,15,21... When we looked at the data as a whole, we saw that the current actually had decreased.. but the current was supposed to increase. I think the problem was that it was hard to record the current because it wasn't steady.. it would go from 270, to 120 in a second.. so some of the data was rather inaccurate in that case.. I learned that even a nail without anything attached to it contains electricity. and that the more wire/metal, the more electricity..

Labels: M2M