Claudius Ptolemy was a Greek mathematician, astronomer and geographer who lived in the Egyptian city of Alexandria while under the rule of the Roman Empire. Much of medieval astronomy and ...

The material they discovered appears to be a copy of Claudius Ptolemy’s treatise on a scientific instrument called the meteoroscope. Finding Ptolemy. Ptolemy, who was born in 100 CE, ...

Researchers have deciphered an ancient manuscript that they think Claudius Ptolemy, an Egyptian mathematician and astronomer of Greek descent, penned during the first century A.D. Written in Greek ...

Studying a statue of Atlas holding the sky, an American astronomer finds key evidence of what could be a major fraud in science history.

Simplified reconstruction of Ptolemy's nine-ringed astronomical instrument called "Meteoroscope," as described in the hidden manuscript. It was a tool to calculate heights and distances, often in ...

The first great attempt to make mapping realistic came in the second century A.D. with Claudius Ptolemy. He was an astronomer and astrologer obsessed with making accurate horoscopes, ...

Claudius Ptolemy. In ancient Greece, astronomer and mathematician Claudius Ptolemy (A.D. 90–168) set up a model of the solar system in which the sun, stars, and other planets revolved around Earth.

A famous Greek astronomer and cartographer, Ptolemy's map of Ireland is incredibly accurate even though it was penned way back in 140AD. A map created by Greek astronomer and cartographer Claudius ...

Claudius Ptolemy, World Map, 150 AD <br>In 150 AD, the Greek scholar Claudius Ptolemy wrote a textbook entitled the <i>Geography, </i>which earned him the title ‘The Father of Geography’.

Claudius Ptolemy, an ancient Greek astronomer, had one of the first written records of explaining retrograde motion in the second century A.D.