1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreyy89
3 years ago
10

When and where did ptolemy make his astronomical observations?

History
1 answer:
mr Goodwill [35]3 years ago
6 0

Ptolemy is one of the best known astronomers, geographers, mathematicians, from the antique period. He lived in what is now Egypt, in his time it was the Roman Province of Egypt, in the city of Alexandria, the famous city of knowledge.

Not much is known about Ptolemy's life except from his scientific writings. In the year of 150 AD, Ptolemy finished his book where he had written a lot about his astronomical observations and conclusions. According to the book, he summed up observations made over a period of around 25 years, thus we can say that he was making his observations from 125 AD to 150 AD.

What made his work very important and marking is his geocentric model. Despite it not being accurate, as it had multiple mistakes, it was still the basis for further scientific observations and investigations for the centuries to come. His observations were made on the territory of Egypt, the majority of them from Alexandria itself.

You might be interested in
What factors brought on the country's economic problems in the late 1960s and early 1970s
Arte-miy333 [17]
Alongside cultural dislocation and political alienation, the country confronted a series of distressing economic setbacks in the 1970s and early 1980s. In 1973, inflation began to climb at a pace unprecedented in the post-World War II decades, and economic growth slowed. An energy crisis, aggravated by American foreign policy in the Middle East, produced fuel shortages. Foreign competition in manufacturing brought less expensive, and often more reliable, goods into the U.S. market from nations such as Japan and West Germany. Both developments helped set off a round of plant closings and deindustrialization.
8 0
3 years ago
How did the Nineteenth Amendment expand democracy?
forsale [732]
The 19th amendment says that citizen can't be stopped from voting, and that it doesn't matter if they are gay, or lesbians. It helps expand democracy because these people can have their voice heard, and that's why democracy is basically.
8 0
4 years ago
Read 2 more answers
What long-term economic factors led to the collapse of the Roman Empire?
Agata [3.3K]

Answer:

D.Taxes went up, and the gap between the rich and poor increased.

Explanation:

Before the Roman Empire collapsed, it was a large empire that encompassed large portions of land in Europe, the Middle East, and North Africa. In order to keep its power in all of its vast territories, the Roman Empire depended greatly on its large army. Therefore, in its final phase, the empire had an increasing territory and an increasing army needful of resources. For this reason, the Emperor elevated the taxes to collect more money for the troops. This measure increased the gap between the rich and the poor, causing a big economic crisis. This situation was no longer sustainable: social conflicts appeared within the empire and the troops hadn't enough resources to fight against the barbarian hordes. Finally, the Roman Empire collapsed due to its own weight.

3 0
4 years ago
Read 2 more answers
How does the separation of powers guard against tyranny?
marshall27 [118]
Separation of powers ensures against oppression by isolating the focal government into three branches. Montesquieu thought of authoritative, legal, and the official branches so that one person or gathering will have all the power.


Hope I helped!
7 0
3 years ago
Read 2 more answers
Colonists use this phrase to suggest that they wanted to pass their own tax laws. taxes should be equal for Britain and the colo
Simora [160]
Colonists argued that they should have a vote on taxes in Parliament if they are to be taxed by the British Government. The famous phrase that was coined was, "No taxation without representation," which was the colonists demands for the ability to have a say in the taxes that were enacted on them by the British. 
3 0
3 years ago
Read 2 more answers
Other questions:
  • what is one-way plantation owners could operate their plantations like a factory in order to make a profit.
    13·1 answer
  • What role did religion play in the Pagan kingdom and Khmer empire?
    14·1 answer
  • During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the
    14·1 answer
  • List 3 advantages of cotton as a cash corp
    14·1 answer
  • What nations formed the triple alliance
    11·2 answers
  • What do shifts in the american public opinion in the panama canal indicate about historical context
    9·1 answer
  • Why might the various forts have been built at their geographic locations? (short answers only please, I'm an idiot)
    11·2 answers
  • Help, I am not sure which it is
    11·2 answers
  • Imperialism is a system under which nations take over other countries, either by conquering them or by gaining control of their
    8·1 answer
  • Part A From the following excerpt, which sentences best reflect Harding's desire to return to normalcy after the war? Why? "The
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!