A large stone carved in the shape of a wheel for sharpening axes and knives or for grinding grains.
Technology is information on anything that man makes for his benefit out of resources available, in order to make tasks simpler to perform. (stone tools, fire, wheel etc)
New
the wheel
The wheel
the wheel was invented in the stone age, of course.....
A wheel is a round device to roll a vehicle on. The wheel rotates around the axle which is fixed to the vehicle.
A large cut block of stone.
sometime in b.c
The wheel.
None. A wheel, be definition, is circular and therefore has no vertices!
A cycle with only one wheel
The invention of wheels was in the New Stone Age (Neolithic).