<p>THE MECHANICAL UNIVERSE Name: </p><p>Video 11 Gravity Electricity and Magnetism Class: </p><p>1. Fundamental constants of nature have values (magnitudes) often for reasons that we as a civilization have no good explanation. When constants of nature are shown to be connected the discovery is often described as………</p><p>2. Light coming from distant objects, such as stars or galaxies, is measured in what unit?</p><p>3. In 1850, the inventor of the gyroscope, Jean Foucault measured the speed of light using what tool?</p><p>4. In 1926 Michelson measured the speed of light using a rotating mirror and bouncing light between 2 mountains outside of Los Angeles. What was the magnitude of this “light speed”?</p><p>5. A brilliant and modest English scientist measured mass of the entire Earth. What was his name?</p><p>6. Can there exist in nature a magnetic “mono”pole? (i.e. just a north or just a south pole) </p><p>7. In 1820, Oerstead discovered a link between electric current in a wire and the ______</p><p>8. 50 years after Oerstead’s discovery, James Clerk Maxwell showed that the ratio of the electric and magnetic field constants can be used to do what?</p><p>9. The telegraph was first invented in 1838 by inventor Samuel Morse. In the 1850’s the transatlantic telegraph cable being laid out. Unfortunately, what happened?</p>