Nikola Tesla in his 60s adjusting a radio device in his lab in New York City. Like most significant inventions, radio had not just one âfather,â but many. British mathematician James Clerk Maxwell first proved the existence of radio waves mathematically in 1864.
Cutting with Rotary Tools. Rotary tools are the most widely used method for cutting composite laminates. Whether you are cutting carbon fiber sheet or a fiberglass hull, there is usually a rotary tool just right for the job. Rotary cutting tools vary from small handheld rotary tools, like a Dremel or pneumatic rotary, to routers and even angle grinders.
Almost all carbon fiber is made from a common industrial fiber called polyacrylanitrile fiber, also known as PAN. Most PAN fiber is used to make acrylic fiber. It is also used to make carbon fiber with a pyrolizing process, which means it is heated to ultra high temperatures to remove all elements except the carbon.Most carbon fiber is sold at this point and it has a tensile modulus of 33 million pounds per square inch (MSI).(Tensile modulus is a measurement of stiffness.) This 33 MSI fiber, if seen up close, looks like a a redwood tree trunk, with deep fissured bark.ost carbon fiber is sold at this point and it has a tensile modulus of 33 million pounds per square inch (MSI). (Tensile modulus is a measurement of stiffness.) This 33 MSI fiber, if seen up close, looks like a a redwood tree trunk, with deep fissured bark.