Galileo’s telescope anchors the exhibit “Galileo, the Medici and the Age of Astronomy,” which is at the Franklin Institute in Philadelphia until September 7, 2009. Though Galileo didn’t invent the ...

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The working principle of TENGs involves two fundamental components: a triboelectric layer and an electrostatic induction layer. These layers are usually made of different materials with contrasting ...

Jesse Engel is playing an instrument that's somewhere between a clavichord and a Hammond organ---18th-century classical crossed with 20th-century rhythm and blues. Then he drags a marker across his ...

A few other cases and sets of drawing instruments are found in the Armed Forces History, Physical Sciences, Political Life, and Work and Industry collections at the National Museum of American History ...

The soul-shattering abuses suffered by enslaved Africans, who were forcibly stripped of their languages, religions and other key aspects of their culture, were fortunately no match for their ...