PHY 125 Lecture Notes - Lecture 2: Caesium, Observable Universe
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Predictions agree better with better data in a better experiment. Ex: aristotle believed that objects would return to rest once put in motion. Ex: galileo realized an object put in motion stays in motion until another force acts upon it. There is always uncertainty in every measurement, in every result. Check your hypothesis and change or acknowledge accordingly. Further create more tests and repeat this process. Demonstrate experiment and explain your thought process to others. Allow others to ask questions where you will defend your theory. You do(cid:374) t have to solve or i(cid:374)(cid:374)ovate the newest technological advance known to man, but rather solving everyday problems with new ideas is considered a fantastic achievement . Ex: mohammad bah abba put a pot inside another pot and surrounded the inner pot with sand. This allowed for the food stored inside the smaller pot to stay fresh longer and prolong its edibility. Length of the path traveled by light in 1/299,792,458 second.