Tool steels are important materials and cover a wide range of compositions from simple plastic molding die steels or water-hardening carbon steels to very highly alloyed high-speed steels. Even more exotic compositions can be achieved by the powder metallurgy route. But, there are some common features...
Simulations show Optimal Design for Bladeless Wind Turbines
"an 80cm mast" Really? I'm short but that's only half my height! Do they mean 800cm?