Technology / Motorcycle / Arlen Ness: Motorcycle customizing owes much to the talents of Arlen Ness. He started out in 1967 by customizing his own Harley-Davidson Knucklehead. It won first place in the first custom show he entered. Soon he was doing custom bikes for a long line of customers and continued to win awards living by the slogan, 'Always innovate, never imitate.' His latest creation is the Arlen Ness Signature Series for Victory motorcycles. Check out the Arlen Ness Web site.
Science / Geology / Mohs Hardness Scale: A collection of minerals ranging from very soft to very hard. Use as a comparison scale during mineral identification. From softest to hardest, the ten minerals are: talc 1, gypsum 2, calcite 3, fluor MORE
Science / Geology / Mohs Scale Of Hardness: An empirical, ascending scale of mineral hardness with talc as 1, gypsum 2, calcite 3, fluorite 4, apatite 5, orthoclase 6, quartz 7, topaz 8, corundum 9, and diamond 10. MORE