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Galileo challenged Aristotle's belief that heavier objects fell faster than lighter ones.
An experiment can prove they are wrong or right ...:)
Aristotle's dynamic motion theory was proven wrong by a man named Galileo. He tested Aristotle's theory by dropping a heavy object and a lighter object at the same time. The experiment proved Aristotle wrong because the result was that the two objects were falling at the same rate (speed).
Franklin proved the understanding of DNA was wrong through a number of scientific experiments.
Aristotle didn't use the word "acceleration," but he did state (incorrectly) that heavier bodies fell faster to the surface of the Earth than did lighter bodies. The poet-philosopher Lucretius MAY have reached a different conclusion, but certainly did no experiments. Writings prior to Galileo Galilei state that Aristotle had been shown to be wrong, but give no details. Dutch scientist Simon Stevin did actual experiments in 1586 with dropped balls and proved conclusively that Aristotle was wrong. However, he also did not use the word "acceleration." Galileo did a mathematical description of balls rolling down a plane, and showed that such bodies experienced constant acceleration. He then speculated that objects falling straight down would do the same. There is no credible evidence that he did any experiments on such objects, as he did not have the instruments to accurately measure their rate of falling.
Galileo Galilei was a physicist and an astronomer. He proved hat the heliocentric universe was correct, not the geocentric universe, with his telescope that he invented. Galileo also found out that other planets have moons too. And finally, he proved Aristotle wrong by finding that objects fall at the same speed, no matter what their weight is.
A 'testable' hypothesis is one in which you are able to conduct experiments in able to prove right or wrong.
No, that was done by Aristotle. Diogenes also proved it wrong simply by out-racing a tortoise. A final, formalized refutation was done by mathematicians in the late 1800s.
Copernicus developed the theory, Galileo supported it with his observations.
Galileo was not popular with the Catholic Church during his lifetime, as he proved that the Earth revolves around the sun (Aristotelian Geocentric), contrary to the Church's teachings that the sun and all the other planets orbit around the Earth (heliocentrism). However, today Galileo was credited with his many contributions to physics. He was also one of the first people to prove that many of Aristotle's teachers were wrong, and showed great courage in proposing this idea. Galileo was one of the most famous physicists in history, along with Sir Issac Newton and Albert Einstein.
It was not what the old guys like Aristotle, Socrates, and Plato thought up. They thought that Galileo was preaching against the bible (illegal back then) and the ideas weren't popular because everybody liked being in the middle of the solar system.
Aristotle thought that when you drop 2 things with different masses that the heavier one would hit the ground first. Galileo proved him wrong by rolling two balls of different masses down an incline plane and timing them using a clock. He found that the mass of an object does not affect how quickly it accelerates due to gravity.