One major problem with the refractor telescope used by Galileo was sagging lens.
The telescope
Galileo was the first to use a telescope for major discoveries, around the year 1610.
Probably Galileo Galilei (Astronomer and Physicist, 1564 -1642)
In 1609, Galileo Galilei made a significant breakthrough in moon exploration by using a telescope to observe the Moon's surface. This led to the discovery of mountains, craters, and other features on the Moon, challenging the prevailing belief that the Moon was a smooth, perfect sphere.
No. One of his major contributions was the improvement of telescope technology which allowed him to be the first human being to view many astronomical phenomena for the first time.
The telescope,In 1609, Galileo was the first person to use a telescope to observe the skies (after hearing about Hans Lippershey's newly-invented telescope). Galileo discovered the rings of Saturn (1610), was the first person to see the four major moons of juipiter(1610), observed the phases of Venus studied sunspots, and discovered many other important phenomena.It also helped us learn more about are solar system (:
His Father, for he didn't want Galileo to major in mathmatics, but to major in medicine instead.
His achievements include improvements to the telescope and consequent astronomical observations and support for Copernicanism.
toothpaste
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.
Galileo Galilei (15 February 1564 - 8 January 1642) was a Italian physicist, mathematician, astronomer, and philosopher who played a major role in the Scientific Revolution. His achievements include improvements to the telescope and consequent astronomical observations, and support for Copernicanism. Galileo has been called the "father of modern observational astronomy", the "father of modern physics," the "father of science," and "the Father of Modern Science."
Galileo Galilei is one of the most famous astronomers in history. One of his major accomplishments was the improvements he made to the telescope. Galileo is known for greatly advancing the scientific revolution.