in 40 000 000 ad
a quern stone is used to grind corn to make flour
A quern is a hand mill for grinding grain; it usually consists of two circular stones, an upper and lower. The upper stone is rotated or rubbed on the lower one.
A quern stone is a simple hand mill used for grinding grain into flour during the Neolithic period. It consists of two stones - a stationary lower stone and a movable upper stone that are rubbed together to grind the grain. Quern stones were an important tool for early farming societies to process food.
A quern is a very basic hand mill used for grinding grain. It generally had one stone with a concave surface and the other with a convex surface. The Roman quern was larger and consisted of larger heavier stones which were rotated by animal power.
The Romans made quern stones by shaping them and smoothing them with metal hand tools. They used igneous rocks - rocks is formed through the cooling and solidification of magma or lava. Basalt was the favourite one. When igneous rock was not available, sandstone, quartzite or limestone was used.
quern is not a real word, it would be the same in any language: quern.
What does the word quern mean in mesopotamia?
Gunpowder, Invented by the Chinese Stirrups, also invented by the Chinese. and used for horse-riders to use swords and spears. catapult, the first artillery weapon invented by the Greek.
An invention in the Iron age.
$900.00
it was made in medieval times
it was made in medieval times