![How many Mohs does your razor have?](/wp-content/uploads/2010/09/Lock-stock-two-smoking-barrels.jpg)
How many Mohs does your razor have?
Friedrich Mohs, a German mineralogist, invented his eponymous scale of hardness in 1812. It compares substances by their ability to scratch each other, with diamond at the top with a […]
Friedrich Mohs, a German mineralogist, invented his eponymous scale of hardness in 1812. It compares substances by their ability to scratch each other, with diamond at the top with a […]