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Molcajete used to grind spices Molcajete as a food container. Molcajetes are used to crush and grind spices, and to prepare salsas and guacamole.The rough surface of the basalt stone creates a superb grinding surface that maintains itself over time as tiny bubbles in the basalt are ground down, replenishing the textured surface.
Tridilosa: invented by civil engineer Heberto Castillo. Anti-graffiti coating (Deletum 3000): developed in the early 2000s at UNAM’s Applied Physics and Advanced Technology Centre in Querétaro Mexico. Earthquake Resistant Foundations: invented by engineer Manuel González Flores in 1945.
1926: The Yagi-Uda Antenna or simply Yagi Antenna is invented by Shintaro Uda of Tohoku Imperial University, assisted by his colleague Hidetsugu Yagi. The Yagi Antenna was widely used during World War II. After the war they saw extensive development as home television antennas. 1926: Robert H. Goddard launches the first liquid fueled rocket.
The timeline of wars has been split up in the following periods: List of wars: before 1000; List of wars: 1000–1499; List of wars: 1500–1799; List of wars: 1800–1899; List of wars: 1900–1944; List of wars: 1945–1989; List of wars: 1990–2002; List of wars: 2003–present
For a timeline of events from 1801 to 1900, see Timeline of the 19th century; For a timeline of events from 1901 to 1945, see Timeline of the 20th century. For 1914–1918, see Timeline of World War I; For 1939–1945 see Timeline of World War II
A timeline is a list of events displayed in chronological order. [1] It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events. Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a ...
Old Japanese weapons and other military paraphernalia, c. 1892–95 A Gilbertese shark-toothed weapon (late 19th century). Major innovations in the history of weapons have included the adoption of different materials – from stone and wood to different metals, and modern synthetic materials such as plastics – and the developments of different weapon styles either to fit the terrain or to ...
The scythed chariot was later invented in India and soon adopted by the Persians. [31] War elephants were sometimes deployed for fighting in ancient warfare. They were first used in India and later adopted by the Persians. War elephants were also used in the Battle of the Hydaspes River, and by Hannibal in the Second Punic War against the ...