Berthold Schwarz Berthold Schwarz Berthold Schwarz (sometimes spelled Schwartz), also known as Berthold the Black and "der Schwartzer", was a legendary German (or in some accounts Danish or Greek) alchemist of the late 14th century, credited with the invention of gunpowder by 15th- through 19th-century European literature. The purported period of Schwarz' activity (late 14th century) thus falls between the first reports of gunpowder in Europe (late 13th century) and the development of effective applications in artillery (mid 15th century). It is unclear whether Schwarz is a historical person. It has been suggested that he was a historical alchemist who had developed
Rohde & Schwarz and its subsidiaries gateprotect GmbH, Sirrix AG, Rohde & Schwarz SlT GmbH, ipoque GmbH and Denyall offer a broad range of stuff for IT and network security. The activities are now bundled in Rohde & Schwarz Cybersecurity GmbH. Rohde & Schwarz supplies interoperable radiocommunications systems for military, government and civil applications. It is currently working on the development of software defined radio (SDR). At the end of 2008 the German armed forces commissioned the company to develop an SDR base unit for their future joint radio system (SVFuA). More than 200 airports around the world deploy Rohde & Schwarz radiocommunications