Search results
Results From The WOW.Com Content Network
Invented by Harold Grossman [53] for the Empire Pencil Company in 1967, plastic pencils were subsequently improved upon by Arthur D. Little for Empire from 1969 through the early 1970s; the plastic pencil was commercialised by Empire as the "EPCON" Pencil. These pencils were co-extruded, extruding a plasticised graphite mix within a wood ...
Parkesine, the first member of the Celluloid class of compounds and considered the first man-made plastic, is patented by Alexander Parkes. [4] 1869: John Wesley Hyatt discovers a method to simplify the production of celluloid, making industrial production possible. 1872: PVC is accidentally synthesized in 1872 by German chemist Eugen Baumann ...
During the 1860s, people typically wrote with quill pens and ink even though Dixon introduced graphite pencils in 1829. But the American Civil War created a demand for a dry, clean, portable writing instrument and led to the mass production of pencils. At the time of Dixon's death in 1869, the Joseph Dixon Crucible Company was the largest ...
Aaron Bartholmey started a pencil collection after a Christmas gift from his first-grade teacher. Three decades later, he has a Guinness World Record. This Iowan has collected pencils for 30 years.
1856: Alexander Parkes invents parkesine, also known as celluloid, the first man-made plastic. 1856: James Harrison produces the world's first practical ice making machine and refrigerator using the principle of vapour compression in Geelong, Australia. [427] 1856: William Henry Perkin invents mauveine, the first synthetic dye.
Nov. 19—Aaron Bartholmey, of Colfax, can now officially say he has the largest pencil collection in the whole world. After a prolonged public counting event in July, Guinness World Records has ...
It was introduced in 1950 and is the best-selling pen in the world, with the 100 billionth sold in September 2006. It has become the archetypal ballpoint pen and is considered ubiquitous, [ 2 ] to the extent that the Museum of Modern Art has made it a permanent part of its collection.
Despite the planet's growing plastic pollution crisis, petroleum-based polymers have become an integral part of modern life.They make cars and airplanes lighter and more energy efficient.