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Galileo
This category is for questions about Galileo Galilei, who was a substantial contributor to various fields of science and philosophy; continuing to be the "father" of many academic subjects today.
1,167 Questions
A dichotomous response is a categorical variable that has only two possible outcomes, typically represented as "yes" or "no", "true" or "false", or "success" or "failure". This type of response simplifies data analysis by providing clear and distinct categories for analysis or categorization.
When did Galileo discover Saturn's rings?
Galileo worked in Italy. He did not discover Saturn, it was known to ancient astronomers, but he discover the rings, with his telescope.
He wanted to keep the discovery secret, but at the same time he wanted to claim the credit for the discovery, so he published the announcement in the form of a Latin anagram.
In what year did Galileo invent acceleration law?
Galileo did not invent any law -- physical laws are not 'invented'; they can be discovered, or hypothesised. What Galileo did was to set out his ideas about falling bodies, and about projectiles in general, in a book called "Two New Sciences", which eventually became the cornerstone of modern physics.
Having established (experimentally) that heavy objects fall at practically the same rate, Galileo mused the central question 'how does the speed vary during the fall?' He asked, in 'Two New Sciences': "But tell me, gentlemen, is it not true that if a block be allowed to fall upon a stake from a height of four cubits and drive it into the earth, say, four finger-breadths, that coming from a height of two cubits it will drive the stake a much less distance; and finally if the block be lifted only one finger-breadth how much more will it accomplish than if merely laid on top of the stake without percussion? Certainly very little. If it be lifted only the thickness of a leaf, the effect will be altogether imperceptible. And since the effect of the blow depends upon the velocity of this striking body, can any one doubt the motion is very slow .. whenever the effect is imperceptible?"The question establishes that a falling body continues to pick up speed as it falls.
He went on to suggest: "A falling body accelerates uniformly: it picks up equal amounts of speed in equal time intervals, so that, if it falls from rest, it is moving twice as fast after two seconds as it was moving after one second, and moving three times as fast after three seconds as it was after one second."
His experimets, long and complicated, are beyond the scope of this brief article.
Galileo was an Italian physicist, mathematician, engineer, astronomer, and philosopher. He constructed a hydrostatic balance, put together the theory of math and physics. He developed modern astronomy.
Which experiments made Galileo famous?
his contributions to astronomy and physics made him famous. He supposedly taught theories that contradicted Aristotle's theories and was eventually put in jail especially for his theory that the earth was not the center of the universe. From what I know, Galileo wasn't put in jail. He was just put on house arrest for the last 9 years of his life. Sine he was very famous.
Did Galileo galilei have to overcome anything as a scientists?
As a scientist, Galileo Galilei (1564-1642) did indeed have much to overcome in his life. The intrinsic difficulties of acquiring knowledge about the world were one formidable barrier that he faced. Yet, he also famously ran up against skepticism and criticism from his fellow scientists and from social authorities, who condemned his view that the sun stood at the center of the universe and in fact had him imprisoned late in his life because of that view.
Did Galileo invent the telescope?
Galileo did not invent the telescope, but he made significant improvements to its design and was one of the first to use it for astronomical observations in the early 17th century. The telescope was actually invented in the Netherlands by Hans Lippershey around 1608.
How do you persuade someone to do something?
Be kind and polite to them and any visitors in your house. If you see an opportunity to help them, jump straight in. Whatever you do don't throw a tantrum, because that will make it an easy choice not to. Maybe talk to them about it and remember to give them time to think.
The Death Anivarsary of Galileo?
Galileo Galilei passed away on January 8, 1642, so his death anniversary would fall on that date each year. He was an Italian astronomer, physicist, and mathematician who played a key role in the Scientific Revolution. His work laid the foundation for modern astronomy and physics.
How did humans discover that the earth is round and not flat?
well the earth is round known to the scientists but flat to some people as they can believe. humans discovered that the world is round and not flat from the astronauts and scientist as you think of the man who first went to the moon!
While it is true that men were not able to observe the complete globe until they traveled to space, a Greek astronomer calculated that the earth was actually round about 200 B.C.E. However, the fact of it's spherical shape was not generally accepted until almost a 1000 years later.
More fascinating than that though, is the knowledge that the shape of the earth was recorded in the Bible book of Isaiah about 750 B.C.E. He wrote at Isaiah 40:22 "There is One who is dwelling above the circle of the earth." The Hebrew word translated "circle" carries the meaning of a complete, or spherical circle.
Even before that, around 1500 B.C.E. Moses (who recorded the account of Job's trails) quoted Job's observation that God was "Hanging the earth upon nothing." (Job 26:7) This is clearly contrary to the common belief of the time that the earth was not only flat, but had to be supported by something, be it the god Atlas, giant elephants, or what have you.
What allowed Galileo to realize planets move around the sun?
Satellites of Jupiter
Jupiter has a large number of satellites. Of these, four are comparable to the Earth's Moon in size; the rest are orders of magnitude smaller. When Jupiter is at opposition and closest to the Earth, the stellar magnitude of its four large moons is between 5 and 6. [1] This means that, were it not for the shielding brightness of Jupiter, these bodies would be visible with the naked eye. The aperture of the telescope used by Galileo in 1610 and its magnification thus brought these four "Galilean" satellites within his grasp.
But first Galileo had to make adjustments to the instruments. When viewing bodies that are very bright and very small, the optical defects of the telescope can be crippling. By trial and error Galileo learned to stop down the aperture of his instrument until he could begin to make useful observations. At the end of 1609, as he was finishing his series of observations of the Moon, Jupiter was at opposition and the brightest object in the evening sky (not counting the Moon). When he had made the new adjustment to his instrument, he turned his attention to Jupiter. On 7 January 1610 he observed the planet and saw what he thought were three fixed stars near it, strung out on a line through the planet. This formation caught his attention, and he returned to it the following evening.
Galileo's expectation was that Jupiter, which was then in its retrograde loop, [2] would have moved from east to west and had left the three little stars behind. Instead, he saw all three stars to the west of Jupiter. It appeared as though Jupiter had not moved to the west but rather to the east. This was an anomaly, and Galileo returned to this formation again and again. Over the next week he found out several things. First, the little stars never left Jupiter; they appeared to be carried along with the planet. Second, as they were carried along, they changed their position with respect to each other and Jupiter. Third, there were not three but four of these little stars. By the 15th of January he had figured it out: these were not fixed stars but rather planetary bodies that revolved around Jupiter. Jupiter had four moons. His book, Sidereus Nuncius, in which his discovery was described, came off the press in Venice in the middle of March 1610 and made Galileo famous.
Galileo's observations of Jupiter's moons (from manuscripts) [click for larger image]The moons of Jupiter had a major impact on cosmology. In 1610 the traditional Aristotelian cosmology had come under attacks from Copernican astronomers. Aristotelians had a number of arguments against the Copernican System, one of which was now made obsolete. In traditional cosmology, there was only one center of motion, the center of the universe which was the place of the Earth. The motions of all heavenly bodies centered on the Earth. But according to the Copernican theory, the Earth went around the Sun while the Moon went around the Earth. There were thus two centers of motion, which seemed an absurdity. Moreover, if the Earth was a planet, like Mercury, Venus, Mars, Jupiter, and Saturn, why was it the only planet to have a Moon? Galileo's discovery answered this question. The Earth was, in fact, not the only planet to have a moon, Jupiter had four. And no matter what cosmological system one believed in, there were now at least two centers of motion in the universe, the Earth or Sun and Jupiter. Thus, although the satellites (the term was first used by Johannes Kepler) of Jupiter were by no means proof of the truth of the Copernican system, they certainly added ammunition on that side of the argument.
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Did Galileo teach at the University of Padua?
Yes
He actually had his "inagural" lecture on march 23, 1592
From 1592-1610 he held the chair of mathematics which allowed him to teach geometry, astronomy, and mechanics.
Are there tunnels from pyramids to center of earth?
No, there are no tunnels from pyramids to the center of the Earth. Such claims are purely speculative and not supported by any scientific evidence. Pyramids were built for various purposes such as tombs or religious monuments, not for connecting to the Earth's core.
Galileo Galilei did not invent anything in the traditional sense. However, he was a renowned Italian astronomer, physicist, and mathematician who made significant contributions to our understanding of the universe through his observations with telescopes and experiments that helped establish the foundations of modern science.
Does Jupiter change its place from the sun every 248 years compared to the other planets?
No, Jupiter does not change its place relative to the Sun every 248 years compared to other planets. Jupiter orbits the Sun in about 11.9 years, along with the other planets in our solar system. The concept of a 248-year cycle likely refers to the time it takes for Jupiter to return to the same position in the sky as seen from Earth, known as a Jupiter "return" or "synodic period".
Galieo invented the first telescope. The cristance locked him in his own house because everybody thought the earth was the centre of universe. Galieo saw that the earth was actually rotating around the sun. Everybody were angry and put him under house arrest. Years later, we found out that Galieo was all right along.
Where was the thermometer invented?
The thermometer was invented in Italy by Galileo Galilei in the early 1600s. It was later improved upon by other scientists, such as Daniel Gabriel Fahrenheit and Anders Celsius.
What space shuttle has been in space the longest and how long was the mission?
Columbia holds the record for the longest shuttle mission in November 1996. This lasted 17 days, 15 hours, 53 minutes and 18 seconds. Columbia was destroyed in January 2003. Of the remaining shuttles, the record is held by Endeavour, with a flight lasting 16 days, 15 hours, 8 minutes, and 48 seconds.
What was the argument between Henry and the church?
Henry the XIII wanted a divorce and the Catholic Church didn't want to grant it. Henry then broke off the Church in England and created the Anglican Church so that he could get divorced and remarried.
How did Albert Einstein deal with depression?
He did enjoy smoking tobacco, which contains nicotine. Read on to see why that might have helped w/ his depression.
http://en.wikipedia.org/wiki/Nicotine
http://www.dukehealth.org/health_library/news/9863
Scientists have established that people prone to depression are twice as likely to be smokers, and are less likely to succeed in quitting smoking after taking up the habit, according to McClernon. The Duke study explored the theories behind the higher smoking rates among people experiencing depression.
"Smokers may be more prone to depression than nonsmokers," said Edward Levin, Ph.D., a professor of biological psychiatry and researcher at the Duke center, who was senior investigator in the current study. "Or, people with depression may be self-medicating by smoking, albeit in a deadly way."
In the study, the researchers recruited 11 people who did not smoke but who were experiencing symptoms of depression. Participants were randomly assigned to wear either a nicotine patch or a placebo patch that did not contain any nicotine. The researchers used a standardized method, a 20-item questionnaire called the Center for Epidemiological Studies Depression scale, to measure depression symptoms among the study participants.
"Despite the small number of participants, this is the largest study of its kind," McClernon said.
The team found that participants who wore the nicotine patch for at least eight days experienced a significant decline in their depression-assessment rating scores. McClernon said this finding indicates that the drug led to an improvement in depression symptoms.
As a possible explanation for how nicotine exerts its beneficial effect, McClernon said: "The same areas of the brain that are stimulated by nicotine appear to be involved in the regulation of mood."
Nicotine stimulates the release of specific neurotransmitters, including serotonin, dopamine, and norepinephrine, which carry messages between nerves cells. Depression has been linked to chemical imbalances of these neurotransmitters, McClernon said.
