It has taken our species some time before we could accept the notion that what

It has taken our species some time before we could

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It has taken our species some time before we could accept the notion that what we normally encounter is as it is named uni verse. Weeks five and six will relate the historical events that made this conclusion possible. It is the hallmark moment that makes our species a more mature sentient creature. For a modern example, see If you were transported to a different planet around another star you would expect a coin released from your hand to fall sideways. It would behave as you observe it to do from this laboratory underneath your feet. The behaviors of distant double stars gravitationally behave according to what we know about gravity from earth. Light, is the information exchange currency
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between you and everything you know about your surroundings and we know a lot about this phenomena. It appears that this a “safe” assumption 8. How do we know that the laws of physics are the same throughout time? Within the domain of the astronomical Big Bang Theory (week 14) this seems to be a “safe” documented assumption. If this were not the case we would not have any hope of understanding the history of the universe. In a similar way geologist observe present day natural behaviors like water running downhill as an erosion force an apply this action to understanding past events on our planet. The Theory of Relativity demonstrates however, that measurements of various quantities are relative to the velocities of observers. In particular, space contracts and time dilates. 9.*Compare and contrast one flat earth and one round earth astronomical observation that help us decide the shape of our planet. Write a complete description or complete a labeled drawing to illustrate your answer. During a lunar eclipse you can observe the curved shadow of the Earth upon the Moon, which would suggest the disk circular shape of the planet, but not the spherical nature of Earth. (1 ) Confirming observations suggesting a spherical geometry include noticing that ships sailing towards the horizon would gradually fade away over the horizon rather than suddenly disappearing from site. (2) Further you can observe distant sticks of the same height placed vertically into the ground would cast shadows of different lengths on the same day at the same time. (3) As you traveled in a north-south direction, some stars disappeared from view while others appeared. The difference in the height of a star's height above the north or south horizon is directly proportional to the difference in the north-south distance of observers looking at the star at the same time. The simplest explanation said that the Earth is round, not flat. Pythagoras noted that the shadow of the Earth falling on the Moon during a lunar eclipse was always curved and the amount of the curvature was always the same. The only object that always casts a circular shadow regardless of its orientation is a sphere.
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