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1802: Humphry Davy invents the arc lamp (exact date unclear; not practical as a light source until the invention of efficient electric generators). [405] 1804: Friedrich Sertürner discovers morphine as the first active alkaloid extracted from the opium poppy plant. [406] 1804: Joseph Marie Jacquard develops his automated Jacquard loom. [407]
2 Pre-20th century. 3 20th century. 4 21st century. ... 1999 – Discovery of ... 2010-Over the past two decades, a considerable focus has been directed toward ...
The modern-day provisions of the law applied to inventions are laid out in Title 35 of the United States Code (Ch. 950, sec. 1, 66 Stat. 792). From 1836 to 2011, the United States Patent and Trademark Office (USPTO) has granted a total of 7,861,317 patents [7] relating to several well-known inventions appearing throughout the timeline below.
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
Pages in category "20th-century inventions" The following 126 pages are in this category, out of 126 total. This list may not reflect recent changes. A.
3rd century BC: Archimedes relates problems in geometric series to those in arithmetic series, foreshadowing the logarithm. [46] 3rd century BC: Pingala in Mauryan India studies binary numbers, making him the first to study the radix (numerical base) in history. [47] 3rd century BC: Pingala in Mauryan India describes the Fibonacci sequence. [48 ...
List of years in politics (16th century–present) ... Timeline of historic inventions (7th century BCE ... (1999–22 July 2011)
20th Century Fox presents in New York on an 8 m × 4 m big screen the first widescreen movie. The radio station Witzleben begins in Germany with the regular broadcasting of television test broadcasts, initially on long wave with 30 lines (= 1,200 pixels) at 12.5 image changes per second. It appear first blueprints for television receiver.
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related to: 20th century inventions not past 1999 and 2011 year of death date lookup