A colorful poster introduces class members to Maria da Penha. A biopharmacist and activist, Penha was influential in writing and getting passed, Brazil's first domestic violence law which bears her name.

A quick review which explains the concept of a scientific law, and discussed the impact of such laws in the work of science.

An 81-page slideshow that looks at the principles of geology with respect to relative dating, at different concepts describing geological processes, at absolute age and radiometric dating, at the eons and eras in the geologic time scale,...

A portrait of John Bennet Lawes from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

In-depth explanation of Bernoulli's Law, including a diagram of a Venturi tube and equations.

This image shows Johannes Kepler, a German astronomer famous for his laws of planetary motion. Check out our Johannes Kepler facts page for more information.

This site from ScienceWorld provides a very short biographical sketch of Willebrord Snell (1591-1626 CE) and describes his most notable scientific discovery, the law of refraction. Links are provided for additional information as well.

Explore a table of average salaries for the various career fields. However, these aren't representative of everyone in that field. For example, some television reporters make millions of dollars a year. The salaries listed are a little...

Hermann Ludwig Ferdinand von Helmholtz (August 31, 1821 - September 8, 1894) was a German physician and physicist who made significant contributions to several widely varied areas of modern science. In physiology and physiological...