PHIL 148 Study Guide - Final Guide: Barometer, Orbital Elements, Radium
30 Oct 2014
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Problem: why uranium emits stronger rays than other metals. Hypothesis: impurities in pitchblend somehow triggered the uranium to increase the emission of rays. Implication: mixing uranium with impurities in pitchblend would cause an increase in emission of rays. Test: dilute pure uranium with various elements and measure the strength of the rays. Hypothesis: intensified emissions were caused directly by some impurity in the pitchblend. Implication: the increased rays were caused by an unknown element or through process or refinement. Test: burn powder in spectrometer a line appeared in the uv range what was different from that of any other element. Problem: why did the tables work for jupiter and saturn but not uranus. Hypothesis: an 8th planet existed beyond the orbit of uranus and the gravitational interaction between these to planets caused uranium to deviate from the predicted position. Test: provide table of motions and orbital elements that predict location of hypothetical planet use telescope.
