Another cause of sore throat is allergies that promote postnasal drip. There are, however, more serious conditions of the sinuses and throat that may cause the throat to be sore. If you are experiencing an ongoing sore throat, ask your ear, nose, and throat specialist to examine you.
1907: Samuel Simon patented the first screen printing method in Manchester, England, which was most commonly applied to wallpaper and expensive fabrics. He used rubber bands or squeegees, which are still commonly used in the screen printing process today.
A Brief History of 3D Printing. Although 3D printing is commonly thought of as a new âfuturisticâ concept, it has actually been around for more than 30 years. SLA-1, the first 3D printer invented by Chuck Hull in 1983. Chuck Hull invented the first 3D printing process called âstereolithographyâ in 1983.