one very interesting invention was a tidal mill....
A tidal mill is a specialist type of water mill driven by tidal rise and fall. A dam with a sluice is created across a suitable tidal inlet, or a section of river estuary is made into a reservoir. As the tide comes in, it enters the mill pond through a one way gate, and this gate closes automatically when the tide begins to fall. When the tide is low enough, the stored water can be released to turn a water wheel. The earliest excavated tide mill, dating from 787, is the Nendrum Monastery mill on an island in Strangford Lough in Northern Ireland. Its millstones are 830mm in diameter and the horizontal wheel is estimated to have developed 7/8HP at its peak. Remains of an earlier mill dated at 619 were also found.
the 11th century
According to historians, a few of 14th century inventions include the art of knitting as well as the creation of iron cannonballs and fire arrows by the Chinese
The major growth in the Atlantic slave trade in the seventeenth century was to be driven by the expansion of New World exports to Europe.
China's inventions were paper, n dats all i memeba
•Silverpoint pen (a kind of early pencil) •Eye glasses •The mechanical clock •Spinning wheel •gunpowder formula. •Arabic numbering system introduced to the west •windmills
Islam started in the seventh century CE.
electronic inventions of the 21st century?Improve
THE gps
European women were treated very poorly in the seventh century. They were property.
physics invention from 1st century
airplanes
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science in the 20th century
Me OWEN
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the 11th century