Here is the Encyclopedia Britannica’s list for–The Greatest Inventions of All Times
How do people invent things, what do inventors do, and how has the process of invention changed in our modern world?
Main Idea: Answer Key Exercise 1. 1.b; 2.b. Exercise 2. 1. Across the country, many states have abolished the policy of “social promotion,” even though there is no hard evidence that making ren repeat a grade has a positive effect.
Who invented nylon? Photo: Chemical laboratory courtesy of NASA Glenn Research Center (NASA-GRC).. Everyone’s heard of nylon, but hardly anyone outside the world of chemistry knows the name of Wallace Carothers (1896–1937), its brilliant, enigmatic, and ultimately tragic inventor.
The timeline of historic inventions is a chronological list of particularly important or significant technological inventions and the people who created the inventions.. Note: Dates for inventions are often controversial.
Invention: Invention, the act of bringing ideas or objects together in a novel way to create something that did not exist before. Ever since the first prehistoric stone tools, humans have lived in a world shaped by invention.
Born 27 Apr 1896; died 29 Apr 1937 at age 41. quotes American chemist who developed nylon (1935), the first synthetic polymer fibre to be spun from a melt. He produced this polyamide, by condensation of adipic acid and hexamethylenediamine.
From the date of the first printing press to the current explosion of the Web, the greatest moments in the history of innovation are chronicled on a vivid time chart.
Nylon: Nylon, any synthetic plastic material composed of polyamides of high molecular weight and usually, but not always, manufactured as a fibre. Nylons were developed in the 1930s by a research team headed by an American chemist, Wallace H. Carothers, working for E.I. du Pont de Nemours & Company.
