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1886: Charles Martin Hall and independently Paul Héroult invent the Hall–Héroult process for economically producing aluminum in 1886. 1886: Karl Benz invents the first petrol or gasoline powered auto-mobile (car). [ 440 ] 1887: Carl Josef Bayer invents the Bayer process for the production of alumina.
The new beginning of the 20th century marked significant changes. The 1900s saw the decade herald a series of inventions, including the automobile, airplane and radio broadcasting. From 1914 to 1918, the First World War, and its aftermath, caused major changes in the power balance of the world, destroying or transforming some of the most ...
Importance is a property of entities that matter or make a difference. For example, World War II was an important event and Albert Einstein was an important person because of how they affected the world. There are disagreements in the academic literature about what type of difference is required. According to the causal impact view, something ...
This is a list of Japanese inventions and discoveries.The Japanese have made contributions across a number of scientific and technological domains. In particular, the country has played a crucial role in the digital revolution since the 20th century, with many modern revolutionary and widespread technologies in fields such as electronics and robotics introduced by Japanese inventors and ...
The 7 Habits of Highly Effective People, first published in 1989, is a business and self-help book written by Stephen R. Covey. [1] The book goes over his ideas on how to spur and nurture personal change. The book also explores the concept of effectiveness in achieving results, the need for focus on character ethic rather than the personality ...
Historians consider knowledge of dates and events within and between specific historical periods the primary content of history, also known as "first-order knowledge" or substantive concepts. In contrast, historical significance is an example of a subject specific secondary key concept or "second-order knowledge" also known as a meta-concept ...
Maslow's hierarchy of needs is an idea in psychology proposed by American psychologist Abraham Maslow in his 1943 paper "A Theory of Human Motivation" in the journal Psychological Review. [1] Maslow subsequently extended the idea to include his observations of humans' innate curiosity. His theories parallel many other theories of human ...
Lists cover aspects of basic and advanced mathematics, methodology, mathematical statements, integrals, general concepts, mathematical objects, and reference tables. They also cover equations named after people, societies, mathematicians, journals, and meta-lists. The purpose of this list is not similar to that of the Mathematics Subject ...