Hanging Gardens

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Hanging Gardens of Babylon – West Asian science

By |2018-04-07T17:05:00+00:00September 15th, 2017|Science, West Asia|

Assurbanipal in the garden (see his enemy's head hanging in the tree?) Nobody knows for sure when or where the Hanging Gardens of Babylon were built. But they were already famous as one of the Seven Wonders of the World in the Hellenistic period, about 200 BC. The most likely explanation is that the gardens [...]

Screw – Simple machines – Physics

By |2018-05-31T11:49:15+00:00August 17th, 2017|Physics, What|

A cider press with big wooden screws People always count screws as a separate kind of simple machine. But really screws are just one kind of inclined plane. They are such an important kind that we give them their own category. Like most other simple machines, screws also exist in nature. The hip joints of [...]