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Pager. A pager, also known as a beeper or bleeper, [1] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter. [2]
The technological and industrial history of the United States describes the emergence of the United States as one of the most technologically advanced nations in the world in the 19th and 20th centuries. The availability of land and literate labor, the absence of a landed aristocracy, the prestige of entrepreneurship, the diversity of climate ...
Henry Ford, Thomas Edison, and Harvey Firestone in Fort Myers, Florida, February 11, 1929. In the early decades of its history, the United States was relatively isolated from Europe and also rather poor. At this stage, America's scientific infrastructure was still quite primitive compared to the long-established societies, institutes, and ...
PageNet. PageNet , also known as Paging Network, Inc., was founded in 1981 by entrepreneur George Perrin and ceased in 1999. The company grew to become the largest wireless messaging company in the world, with more than 10 million pagers in service, and $1 billion in revenues, before the paging industry's rapid decline in the late 1990s.
Inspired by the works of American scientist Joseph Henry and English scientist Michael Faraday, the circuit breaker was invented by an American, Charles Grafton Page. 1837 Self-polishing cast steel plow. The plow is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting.
The history of technology is the history of the invention of tools and techniques by humans. Technology includes methods ranging from as simple as stone tools to the complex genetic engineering and information technology that has emerged since the 1980s. The term technology comes from the Greek word techne, meaning art and craft, and the word ...
History of printing. The history of printing starts as early as 3000 BCE, when the proto-Elamite and Sumerian civilizations used cylinder seals to certify documents written in clay tablets. Other early forms include block seals, hammered coinage, pottery imprints, and cloth printing.
t. e. In the United States from the late 18th and 19th centuries, the Industrial Revolution affected the U.S. economy, progressing it from manual labor, farm labor and handicraft work, to a greater degree of industrialization based on wage labor. There were many improvements in technology and manufacturing fundamentals with results that greatly ...