Journal Entry 9/18

In class, I figured something out without a book or a straight, boring, conceptual lecture. Instead, I learned by doing, by disscussing and by thinking. I learned a lot in class today. I learned that when a light bulb emits light, its light rays do not emit in straight, direct lines with each spot on the light bulb emitting one straight ray, in fact, these bulbs produce rays that shoot out in many different directions that have rays within them that shoot out in all different directions productiong a "glow" affect as opposed to many concentrated dots. I believe that this is true because of two reasons. One, when we view light bulbs we do not veiw many overlapping concentrated dots like one would see with a laser. Instead we veiw light bulbs as an overall glow, that produces a consistent light. The second reason that I believe that what I learned was right is because in the experiment, when we poked a hole into the tinfoil, there was not a concentrated light "dot" on the celing on the otherside of the hole. Instead there was a vast glow of the light that covered much more area that even the whole.