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Olbers' paradox (the "dark-night-sky paradox") was described by Thomas Digges in the 16th century, by Johannes Kepler in the 17th century (1610), by Edmond Halley and by Jean-Philippe de Chéseaux in the 18th century, by Heinrich Wilhelm Matthias Olbers in the 19th century (1823), and definitively by Lord Kelvin in the 20th century (1901); some ...
The 19th century was an era of rapidly accelerating scientific discovery and invention, with significant developments in the fields of mathematics, physics, chemistry, biology, electricity, and metallurgy that laid the groundwork for the technological advances of the 20th century. [4]
36th century BC: 35th century BC: 34th century BC: 33rd century BC: 32nd century BC: 31st century BC: 3rd millennium BC · 3000–2001 BC 30th century BC: 29th century BC: 28th century BC: 27th century BC: 26th century BC: 25th century BC: 24th century BC: 23rd century BC: 22nd century BC: 21st century BC: 2nd millennium BC · 2000–1001 BC ...
Some two dozen inventors had experimented with electric incandescent lighting over the first three-quarters of the 19th century but never came up with a practical design. [433] Swan's, which he had been working on since the 1860s, had a low resistance so was only suited for small installations.
Multiple discoveries in the history of science provide evidence for evolutionary models of science and technology, such as memetics (the study of self-replicating units of culture), evolutionary epistemology (which applies the concepts of biological evolution to study of the growth of human knowledge), and cultural selection theory (which studies sociological and cultural evolution in a ...
The 19th century saw rapid technological development with a wide range of new inventions. This led Great Britain to become the foremost industrial and trading nation of the time. [ 70 ] Historians have characterised the mid-Victorian era (1850–1870) as Britain's 'Golden Years', [ 71 ] [ 72 ] with national income per person increasing by half.
The rebellion is put to an end two days later. As many as two hundred African Americans, including innocent victims, died as a result. [6] 1831–1833: Egyptian–Ottoman War. 1831–1836: Charles Darwin's journey aboard HMS Beagle. France invades and occupies Algeria. Ioannis Kapodistrias, the First Governor of Greece is murdered at Nauplion.
A tree of liberty topped with a Phrygian cap set up in Mainz in 1793. Such symbols were used by several revolutionary movements of the time. It took place in both the Americas and Europe, including the United States (1775–1783), Polish–Lithuanian Commonwealth (1788–1792), France and French-controlled Europe (1789–1814), Haiti (1791–1804), Ireland (1798) and Spanish America (1810 ...