THE MECHANICAL UNIVERSE Video 12 – The Millikan Experiment Name: Class: 1. Though he did not get credit for it, or have his choice name for it awarded, what particle did JJ Thomson discover with the use of a Cathode Ray Tube? 2. Millikan worked under Michelson in Chicago. Michelson had been awarded the nobel prize in physics for inventing a machine that can measure distances using the interference of what? 3. JJ Thomson developed the cloud chamber to measure what? 4. Millikan used the cloud chamber with oil rather than water. What was the problem with using water to form a cloud? 5. Millikan’s measurement of the charge if an electron was painstaking tedious. Why did he need to literally take hundreds of measurments? 6. Scientific methodology is at the core a methodology in which bias is naturally present. However, what makes it valid is the notion of repeatability. Explain what this means and why it is so important. Be specific.