Democratic Sentinel, Volume 22, Number 21, Rensselaer, Jasper County, 4 June 1898 — Difficulty of Crushing Steel. [ARTICLE]

Difficulty of Crushing Steel.

It is easier to crush the hardest stone known than steel. Corundum was chosen for the stone in a recent experiment. A weight of six tons smashed the corundum, but forty-two tons were required to crush the steel. With a loud explosion the steel flew into powder, and sparks are said to have bored minute holes in the crushing machine.