Search results
Results from the WOW.Com Content Network
The emergence of great factories and the concomitant immense growth in coal consumption gave rise to an unprecedented level of air pollution in industrial centres; after 1900 the large volume of industrial chemical discharges added to the growing load of untreated human waste. [182]
Such conditions led to a human population explosion and unprecedented industrial, technological and scientific growth that has continued to this day, marking the commencement of a period of global human influence known as the Anthropocene. From 1650 to 1850, the global population doubled from around 500 million to 1 billion people. [26]
1900 The 1900 Galveston hurricane hits Galveston, Texas and reverses the city's previously rapid growth. 1906 San Francisco earthquake causes collapse of insurance markets and the Panic of 1907. [21] 1908 Tunguska event decimates a remote part of Siberia. 1914 1918 World War I, which involves heavy bombardment, explosions, and poison gas ...
1970 — Earth Day – April 22., millions of people gather in the United States for the first Earth Day organized by Gaylord Nelson, former senator of Wisconsin, and Denis Hayes, Harvard graduate student. — US Environmental Protection Agency established. — Francis A. Schaeffer publishes Pollution and the Death of Man.
American researchers made fundamental advances in telecommunications and information technology. For example, AT&T's Bell Laboratories spearheaded the American technological revolution with a series of inventions including the light emitting diode , the transistor, the C programming language, and the UNIX computer operating system.
Engineers during World War Two test a model of a Halifax bomber in a wind tunnel, an invention that dates back to 1871.. The following is a list and timeline of innovations as well as inventions and discoveries that involved British people or the United Kingdom including the predecessor states before the Treaty of Union in 1707, the Kingdom of England and the Kingdom of Scotland.
Newcomen's atmospheric steam engine. The first practical mechanical steam engine was introduced by Thomas Newcomen in 1712. Newcomen apparently conceived his machine independently of Savery, but as the latter had taken out a wide-ranging patent, Newcomen and his associates were obliged to come to an arrangement with him, marketing the engine until 1733 under a joint patent. [2]
An axe made of iron, dating from the Swedish Iron Age, found at Gotland, Sweden: Iron—as a new material—initiated a dramatic revolution in technology, economy, society, warfare and politics. A technological revolution is a period in which one or more technologies is replaced by another new technology in a short amount of time.