So it's time to buy some new wheels. What hardness should you get? What do the durometer numbers mean? What's a durometer ...

Chinese scientists make ‘super diamond’ 40% harder than real thing - Material may find applications in machining, drilling, ...

Today, most people admire diamonds for two exceptional attributes: their hardness and their brilliance. Scholars knew of diamonds' unrivaled hardness since antiquity, but its unique optical ...

Hard and soft water are different because of the minerals they contain. Hard water has more calcium and magnesium. These water minerals can cause limescale, which clogs pipes and damages machines like ...

Hardness testing machines perform three common kinds of scientific hardness tests: the Brinell hardness test, the Rockwell hardness test, and the Vickers hardness test. The Rockwell hardness test is ...

Solidly-built machine—“made in Austria” Hardness testing module has a wide test force range, from 0.25 g to 62.5 kg, as standard—including ASTM- and DAkkS-certified Vickers test diamond Fully ...

The predominant source of magnesium is dolomite (CaMg(CO3)2). Hard water is generally not harmful. The simplest way to ...