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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.
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
A molcajete and tejolote, the traditional mortar and pestle of Mexico. The importance of the chile goes back to the Mesoamerican period, where it was considered to be as much of a staple as corn and beans. In the 16th century, Bartolomé de las Casas wrote that, without chiles, the indigenous people did not think they were eating.
Date invented Invented by Original purpose Civilian uses ASDIC: 1910s United Kingdom. France. Submarine detection Sonar: Radar: mid-1930s United Kingdom [1] [2] Early warning radar, air defence systems: Air traffic control systems, microwave oven: Walkie-talkie: 1930s Canada (Donald Hings) [3] United States (Alfred J. Gross, Motorola SCR-300)
This is a list of military conflicts, that United States has been involved in. There are currently 123 military conflicts on this list, 5 of which are ongoing. [citation needed] These include major conflicts like the American Revolutionary War, the War of 1812, the Mexican–American War, the American Civil War, the Spanish-American War, World War I, World War II and the Gulf War.
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.
Benjamin Franklin invented wooden swim fins in 1717. [10] His original design consisted of 10-inch-long (250 mm) and 6-inch-wide (150 mm) palettes. Contrary to today's version of rubberized swim fins worn on the feet, Franklin's swim fins were originally intended for use on a person's hands.