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Types of lever – Simple machines – Physics

By |2019-01-15T06:26:04-07:00August 17th, 2017|Physics|

Types of lever: What kind of lever is a see-saw? Three types of lever All levers fall into one of three types of lever. How can we tell which lever is in which class? The main difference is what order the different parts come in. Every lever has three parts: the force, the [...]

History of Bicycles – Steel and feminism

By |2019-02-13T20:34:07-07:00August 7th, 2017|Modern Europe, Science|

A velocipede Early wooden bicycles Bicycles were invented bit by bit in many different countries. They grew out of earlier inventions like wheels (from Central Asia) and wheelbarrows and cranks (from China), but Karl von Drais, a German inventor, built the first riding machine with two wheels, one in front of the other, that you had to balance on, [...]