Astronomy 1021 Chapter Notes - Chapter 3: Scientific Method
10 Dec 2015
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Document Summary
Baby has knowledge of gravity by about 1. Science is a way of learning about nature through careful observation and trial-and-error experiments. The development of science has been a gradual process for humanity do today. Ancient civilizations did not practice astronomy like we. Astronomy has practical benefits for timekeeping, tracking seasonal changes and navigation. Length of day- the time it takes the sun to make a full circuit of the sky. Length of month moon"s cycle of phases. Length of year- cycle of the seasons. Days of week were named after seven planets of ancient times. Daytime -tracking the sun"s path in the sky was how they told time in ancient times. Some used the shadows cast by sticks used as sundials. Night tracking the moon"s position and phase or visible. Ancient cultures built structures to mark the seasons i. e. difficult to tell if ancient civilizations were truly aware of or used obelisks constellation.
