*104*

# When was Hipparchus born?

Hipparchus of Nicaea was a Greek astronomer, geographer and mathematician. He is considered the founder of trigonometry, but is best known for his accidental discovery of precession. Hipparchus was born in Bithynia, Nicaea, and probably died in Rhodes, Greece.

## Where was Hipparchus born?

Hipparchus was born in **Bithynia Nissia (now Iznik, Turkey)**, circa 190 BC, he spent most of his time in the Greek island of Rhodes. Little is known about his life, but he was one of the greatest astronomers and mathematicians of antiquity.

## When did Hipparchus discover trigonometry?

that year **127 BC** Often cited as the last date of his actual work, the French astronomer Jean-Baptiste-Joseph Delambre (1749-1822) clearly demonstrated that a It is likely that some of Hipparchus’ observations were made that year.

## What did Hipparchus do for mathematics?

Hipparchus was a Greek mathematician, **Compiled early examples of trigonometric tables and showed how to solve spherical triangles**.

## Who is the father of mathematics?

**Archimedes** Considered the father of mathematics for his notable inventions in mathematics and science. He served King Hero II of Syracuse. At that time, he developed many inventions. Archimedes invented a pulley system designed to help sailors move heavy objects up and down.

## Hipparchus and the trail of 2000

**39 related questions found**

## Who is the father of trigonometry?

The first known chord table was made by a Greek mathematician **Hipparchus** Around 140 BC. Although these tables have not survived, Hipparchus is said to have written twelve chord tables. This makes Hipparchus the founder of trigonometry.

## What was Ptolemy best known for?

Ptolemy made contributions to astronomy, mathematics, geography, music theory, and optics.he compiles **star catalog** and the earliest extant table of trigonometric functions, and established mathematically that an object and its mirror image must be at equal angles to the mirror.

## What did Ptolemy believe?

Ptolemy thought **The circular motion of celestial bodies is due to their attachment to invisible rotating solid spheres**. For example, the epicycle would be the « equator » of a rotating sphere that lies in the space between two spherical shells around the Earth.

## Who invented trigonometry?

Trigonometry in the modern sense began with the Greeks. **Hipparchus** (c. 190-120 BCE) was the first to construct a table of values for trigonometric functions.

## Who discovered the precession of the earth?

**Hipparchus**The discovery of precession is usually attributed to the Greek astronomer Hipparchus of Rhodes or Nicaea (190-120 BC).

## What are the applications of trigonometric functions in real life?

Other uses of trigonometric functions:

This is **Used in oceanography to calculate ocean tidal heights**. The sine and cosine functions are the basis for the theory of periodic functions, which describe sound and light waves. Calculus consists of trigonometry and algebra.

## What was Hipparchus’ greatest achievement?

Hipparchus was one of the greatest scientists of antiquity.he was a greek mathematician and astronomer **Accurately measure the distance between the earth and the moon**who founded the mathematical discipline of trigonometry, whose combinatorial work was unparalleled until 1870.

## Who invented trigonometry in India?

In India, the father of trigonometry is **Ajabbado I**, also known as the Father of Zero. He was an Indian mathematician and astronomer. Aryabhata collects and elaborates refinements of the achiever argument in the seminal document Aryabhatiya. The first sine table is given in Aryabhatiya.

## What did Ptolemy say to Hipparchus?

Ptolemy describes Hipparchus as **« hardworking » and many times as a great « truth lover »**Hipparchus continues to be held in high regard, as can be seen from the various depictions of him on the frontispieces of astronomical works published long after his death.

## Who first discovered heliocentrism?

**Nicolaus Copernicus** Polish astronomer, known as the father of modern astronomy. He was the first modern European scientist to propose that the Earth and other planets revolve around the sun, or the heliocentric theory of the universe.

## Was Ptolemy a liar?

1800 years ago, the Greek astronomer Claudius Ptolemy published a book on the motion of celestial bodies, which led to him being hailed as the greatest astronomer of antiquity, and he was described as **scam**. Not just any kind of fraud, according to a new book titled « The Crimes of Claudius Ptolemy. » The author of this book is Robert R.

## What does Ptolemy mean?

Definition of Ptolemy. Alexandrian astronomer (2nd century) **He proposed a system of geocentric astronomy that was undisputed until the late Renaissance**. Synonym: Claudius Ptolemy. For example: astronomers, stargazers, Uranians.

## When did ancient Egypt end?

The dynastic period began with the reign of Narmer, Egypt’s first king, around 3100 BC and ended with the death of Cleopatra VII. **30 BC**.

## What did Ptolemy discover about light?

Ptolemy’s analysis defends the theory that vision is due to flow from the eye **reflection of light on plane and spherical mirrors**and the refraction as it passes through the surface between two transparent media.

## Who invented 0?

The first modern equivalent of the number zero comes from **Hindu astronomer and mathematician Brahmagupta** in 628. The symbol he used to depict numbers was a dot below the number. He also wrote standard rules for reaching zero through addition and subtraction, as well as operations involving numbers.

## Why is a sine called a sine?

the word sine **Originally from Latin sinus, meaning « bay » or « entrance »**… The earliest known reference to the sine function comes from Aryabhata the Elder, who used ardha-jya (half chord) and jya (chord) to denote the sine in Aryabhatiya, a Sanskrit text completed in AD 499.