The abbreviation CNC stands for computer numerical control, and programovatelné řízení refers specifically to a computer that reads instructions and drives a machine tool, a powered mechanical device typically used to fabricate components by the selective removal of material. CNC does numerically directed interpolation of a cutting tool in the work
Rare ‘diamond within a diamond’ is unearthed in India
A unique ‘diamond within a diamond’ has been unearthed, according to a company in India’s Surat – one of the rarest in history when it comes to such stones. V D Global named the 0.329-carat piece ‘Beating Heart’ and said it consists of a piece of diamond with a smaller freely-moving piece trapped inside, accordi