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...
January 1946: The origins of Heathrow Airport
Interesting the first flight mentioned in your original 1946 article was a Lancastrian "Stardust" which became famous when it disappeared on...