Today we learned that the speed of light in a vacuum is c = 300,000,000 m/s. There is nothing faster. Sound in air is only about 340 m/s - about a million times slower!
We also attempted to calculate the speed of light in air using a microwave oven and some candy bars. Just remember that speed of a wave = wavelength x frequency.
Don't forget to turn in last night's homework: Light I.
Tonight's homework, due tomorrow: Light II for regular classes, Honors Light II for the honors section and anyone else taking the honors supplement.
Tuesday, August 31, 2010
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