Who Invented the Quartz Clock?
Who Invented the Quartz Clock? In 1927, Canadian-born Warren Marrison, a telecommunications engineer, was searching for reliable frequency s
TellMeWhy
A wonderful and marvelous collection of answers to intriguing questions everyone ask about the world covering almost every subject, from science and history to art, language, mathematics, technology, and homeschooling
Who Invented the Gramophone?
Who Invented the Gramophone? Early attempts to design a music-playing gadget began in 1877 when Thomas Edison invented his tin-foil phonogra
Who Made Steel First?
Sir Henry Bessemer (1813-1898) of England invented the first process for mass-producing steel inexpensively. An American, William Kelly, had
How Did Ancient Civilizations Record Time?
How Did Ancient Civilizations Record Time? After the Sumerians, the Egyptians were the next to formally divide their day into parts somethin
Who Invented Cement?
Who Invented Cement? Concrete is a material used in building construction, consisting of a hard, chemically inert substance, known as an agg