The phrase “o’ clock” originates from “of the clock,” used historically to specify time told by mechanical clocks, which ...

More than 40 years later, Christiaan Huygens proposed that they were rings. The rings are made of ice and rock and scientists are not yet sure how they formed. The gaseous planet is mostly ...

As its name suggests, the Haags Historisch Museum (The Hague Historical Museum) is dedicated to the history of that city in ...

Nauenberg, Michael 1994. Newton's early computational method for dynamics. Archive for History of Exact Sciences, Vol. 46, Issue. 3, p. 221.

THREE great works laid the foundation of modern mechanics: Galilei's “Discourses on Two New Sciences”(1638), Huygens's “Horo–logium Oscillatorium”(1673), and Newton's “Philosophise ...

Ordinary refraction from a medium of higher wave velocity to a medium of lower wave velocity, as understood by Huygens. Successive positions of the wavefront are shown in blue before refraction, and ...