The Geocentric theory is a greek theary that maintained that Earth was the center of the universe. It seemed important to early astronomers that the rest of the universe moved around a stable, motionless Earth. The Sun, Moon, planets, and stars could be seen moving around Earth along circular paths day after day. It appeared reasonable to assume that Earth was stationary, because it seemed to not to move.
The heliocentric theory is a theory that states that the Sun is the central body of the solar system and perhaps of the universe. Everything else revolves around it. The first evidence of the theory is found in the writings of ancient Greek philosopher-scientists deduced by the sixth century B.C. that Earth is round (nearly spherical) from observations that during eclipses of the Moon , Earth's shadow on the Moon is always a circle of about the same radius wherever the Moon is on the sky. Only a round body can always cast such a shadow.
The Geocentric Theory came before the Heliocentric theory. The Heliocentric theory came about during the Scientific Revolution. The theory that has been proven true would be the heliocentric theory. Todat we all know that the sun is in the center of the Universe.
Galileo Galilei was on trial for writing in a book his idea that the Earth was not at the center of the universe, that the sun was at the center. The Catholic Church believed in the Geocentric theory. They believed that the universe revolved around the Earth. Galileo was sentencted to house arrest.
Friday, September 18, 2009
Thursday, September 17, 2009
Scientific Revolution: The Scientific Method
The scientific Method is a procedure used by scientists to test hypotheses by making predictions about the outcome of an experiment, before the experiment is performed. Also, it helps us prove information true or false, especially theorys. The Scientific method consists of 5 main steps:
(1) Define your problem
(2) Create a Hypothesis
(3) Do the acual experiment
(4) Collect your data
(5) Create a conclusion based on your data
There are many experiments using the Scientific Method. One example would be Einstein's prediction that light bends in a gravitational field. To use the Scientific Method, you would have to go through all the steps to solve your problem, but im not sure how use would test your hypothesis in that particular experiment.
(1) Define your problem
(2) Create a Hypothesis
(3) Do the acual experiment
(4) Collect your data
(5) Create a conclusion based on your data
There are many experiments using the Scientific Method. One example would be Einstein's prediction that light bends in a gravitational field. To use the Scientific Method, you would have to go through all the steps to solve your problem, but im not sure how use would test your hypothesis in that particular experiment.
Tuesday, September 15, 2009
Evolution Vs. Creation
Darwin's Theory of Evolution states that all life is related and it came from a common ancestor. It basicly states that complex creatures evolve from more simple ancestors naturally over time. Eventually, humans evolved from a common ancestor, monkeys or primates.
Creation is a religious belief that, humanity, life, the Earth, and the universe were created in some form by a supernatural being, also known as God. Creation is believed by all highly religious people, such as priests, popes, etc. Creation is actualy stated in the holy bible, Genesis 1-2.
There are actualy many oppinions on Evolution vs. Creation. Some people either agree on Evolution or Creation. There is nothing in between. My oppnion is that I believe in Evoution. I believe this because my parents believe in Evolution too. I am Othodox but I rarely go to church, so I am not highly religious. Also, I believe that it makes sense that we came from primates because we look a lot like them.
Creation is a religious belief that, humanity, life, the Earth, and the universe were created in some form by a supernatural being, also known as God. Creation is believed by all highly religious people, such as priests, popes, etc. Creation is actualy stated in the holy bible, Genesis 1-2.
There are actualy many oppinions on Evolution vs. Creation. Some people either agree on Evolution or Creation. There is nothing in between. My oppnion is that I believe in Evoution. I believe this because my parents believe in Evolution too. I am Othodox but I rarely go to church, so I am not highly religious. Also, I believe that it makes sense that we came from primates because we look a lot like them.
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