Knife maker Chelsea Miller explains knife making in 6 levels of difficulty. From a wooden knife to a chef's knife made from raw materials, watch how Chelsea demonstrates and breaks down everything ...

Knives are humanity’s oldest tool, dating back millions of years. A group of scientists in Maryland have produced a version made of hardened wood, which they say is sharper than steel. By Derrick ...

The sharpest knives available are made of either steel or ceramic, both of which are human-made materials that must be forged in furnaces under extreme temperatures. Now, researchers have developed a ...