Stone canon balls, or shot, were made by hand by an experienced stonemason. The process was, and still is (can be made for living history demos but not fired ), a time consuming job. Material would have been any hard natural stone that was available, usually sand stone but sometimes granite. The stone would be hand worked to small radius sections and then rubbed up with a stone block. A reverse section template would be used for accuracy.
The first stone age tools were made by Neanderthals.
Serial no. C8172
The trademark 'XLR 1' was registered by ITT-Cannon in 1958. It was the original model number for 3-pin circular connectors invented by Cannon but is now a generic term.
a rune stone is a magic stone that you use in runescape and it is magical when it has been blessed and you can do it to make spells and to kill people lololololol rune stone can also just be a stone with an inscription on it haha but i never heard of rune stone in rs :S
The china had one with rows wooden round balls on wires, 3 rows of them, 3 balls & 3 balls =6 in the last row, that was add, to subtract it was to the left cool