The Greek mathematician Eratosthenes (a 225 v. Chr.) war Bibliothekar in der berühmten großen Bibliothek …
Day: March 15, 2016
What does the Pythagorean theorem say?
Longest Side Square — Sum of the squares of the shorter sides.
The Greek Pythagoras found around 500 v. Chr. a …
How can you measure heights?
You can measure any height, if one applies the tenets of Thai. Everything, what you need, is a simple measuring instrument, …
The contribution of the Greeks
One is of the opinion today, that mathematics did not become a science until the Golden Age of Greece. Zwar entwickelten schon …
How does the clock become a compass??
We keep a watch like this, that it is horizontal and the hour hand is pointing towards the sun. Süden liegt in …
How far is it to the horizon?
How to measure distances at sea and on land? Wenn man auf einem Berg oder auf einem hohen Gebäude …
How did the Phoenicians recognize the spherical shape of the earth?
In their port cities, the Phoenicians saw the mast tips of the returning ships on the horizon. When the boats got closer, konnten sie …