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322 BCE
Aristotle
Aristotle was known for his philosophy of nature he made a big word in the community to make people beleave. He says that everyone has a purpose and everything passes or dis function -
168
Ptolemy
Ptolemy was an astronomer he made a book called Almagest. In this book he would explain what theorys he had about earth he explained that everything revolves around the earth. -
1543
Copernicus
Copernicus was also a scientist he had other sayings in what the center of out solar system is he said that. Instead of everything revolving around the earth he bealived that we revolve around the sun. -
Tycho Brahe
He was a danish astronomer in his time and was known for may accomplishments. You might think that he was always and astronomer but he was first a lawyer and he started to like astronomy when he read the book Alamagest and was amazed of how much the solar system has to offer. -
Hans Lippershey
Hans Lippershey was an dutch inventor and he made telescopes. But he wanted to sell these telescopes to get money for so he went to go get a patent to sell to the kings and turns out he did sell to Henry IV -
Johannes Kepler
Johannes Kepler was a German Astronomer his big sientific break though was when he dicoverd 3 laws of planetary motion and with this the rules were that planets move in ellipiticle orbits with the sun the time necessary to traverse any arc of a planetary orbit is proportional to the area of the sector between the central body and that arc the area law and there is an exact relationship between the squares of the planets’ periodic times and the cubes of the radii of their orbits the harmonic law -
Galileo
He was an italian astronomer one of his major discoveries was more of the understanding of the universe. Galileo is known for many things but he is also known for making one of the major telescopes that could shoot twords the stars literally. This telescope could make you see stars and even planets. -
Giovanni Cassini
Giovanni Cassini was a French astronomer he manly studied planets
but this astronomer had powerful telescopes to discover planets far from earth like how he discoverd the shadows of jupiter. -
Sir Isaac Newton
Sir Isaac Newton was a English Physicist what Sir Isaac Newton is most famous for is his work in laws of motion because he created it but in his words there were three laws of motion it was that a body remains in its state of rest unless it is compelled to change that state by a force impressed on it that the change of motion (the change of velocity times the mass of the body) is proportional to the force impressed that to every action there is an equal and opposite reaction -
William Herschel
William Herschel was an British German Astronomer he was and astronomer who discover uranus the planet how he discoverd it was with a telescope with multipule mirrors. -
Percival Lowell
Percival Lowell was an American astronomer he committed to the study of mars and put everything he had to study mars and he had a theory that there were inteligents that do inhabbit mars. -
Karl Jansky
Karl Jansky was a American engineer and what he vary famously found was radio waves. He found that radio interferince came from stars waves -
Edwin Hubble
Edwin Hubble was a American astronomer what Edwin did is that he found Cepheid variable stars in the Andromeda Nebula with this he found light and he could soon find how far the nebula is away from earth. -
Albert Einstein
Albert Einstein was a German -American Physicist and was known for his study in relativity but he made a big question the changed everything he asked what a light beam look like if u were beside it and he made a theory that If light were a wave, then the light beam should appear stationary, like a frozen wave. -
Sputnik
Sputnik was not a person but a satalite that was launched by the soviet union. These satilites affected space travel in a good way because it got us closer to launching a man up to space and even the moon -
Jhon Glenn
Jhon Glenn was a american Astronaut he was almost known as a hero because he made the first two U.S. suborbital flights into space. and this was very important for the space race. -
Ejnar Hertzsprung
Ejnar Hertzsprung was a Danish astronomer he mostly studied brightness in the stars or even the sun. He was known for chemical study to. But he did There absolute brightness or colour. -
Yuri Gagarin
Yuri Gagarin was a Soviet cosmonaut and what he did was the first man ever to travel into space. He orbited the space in only 1 hour and 30 mineuts he changed space travel and mad the race to the moon one step further then the U.S -
Neil Armstrong
Neil Armstrong was an american astronaut and the first person to ever step foot on the moon succestfully he was one of the most famous people in the world he was the person he helped america win the space race. -
Mars Pathfinder Expedition
Mars Pathfinder Expedition was a this was one of the first man made abject to land on mars succestfully. -
The Apollo program
The Apollo program was the space mission program this program was the only program that help make the U.S to the moon if it wasnt for this program we never would have won the space race. this was declared when Jhon F Kennedy declared the U.S would make it to the moon. -
First Space Shuttle Flight
First Space Shuttle Flight was the one that would make it out of the orbit and around the earth with crew member on board and this would tranport them to point A to B this could even carry satalites into space. -
Cassini Orbiter
Cassini Orbiter was a probe to study saterns planet. This study multiple things and even dust particels this helped U.S study more of our solar System. -
Difference between refracting telescopes and refleting telescopes
A refracting telescope actually is a telescope which uses a converging lens to collect the light and a reflecting telescopes is a telescope in which a mirror is used to collect and focus light. these are diifrent because one collects light with a mirro and one converges lens to collect light. -
they found that a black hole could help us travel threw space
ye the thing that man kind fears is that it can help us travel threw space faster and cheaper then what we used with space travel.
