Longest Side Square — Sum of the squares of the shorter sides.
Der Grieche Pythagoras fand …
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 …
Sailors, Sun and stars
So saw the Phoenician sailors, like a mountain emerging from the water, the closer they got. They concluded from that; …
The Babylonian positional system
Here in Europe, the decimal system has only been around for about 900 known for years. It was around the year 500 v. …