What is pi? The geometry of a circle What is pi? Pi is a number that is just a little bigger than 3.14. It is the number you get if you divide the circumference of any circle by its diameter. It's the same for all circles. You can approximate pi for yourself by taking some circular things like the tops [...]
Mentuhotep II, Pharaoh of the Middle Kingdom The Middle Kingdom was formed after a series of wars between the rulers of Upper Egypt (the South) and Lower Egypt (the North). The rulers of Upper Egypt won, and they reunified the country about 2000 BC, with the capital first at Thebes in the south, [...]
This scene is from the tomb of Ti, who was an important government official in the Middle Kingdom. With the collapse of the Old Kingdom about 2160 BC, there was also a big change in art styles. The carved reliefs of the Old Kingdom continue, still with the background all carved away. But [...]
Himalaya Mountains Sometimes people describe China's landscape as being like a staircase with three steps. The top step of this staircase is in the west, where the Himalaya mountains are (India is on the other side of these mountains). Tibet is in this part of China. People call it "the roof of the [...]
