The energy state of an atom is denoted by its principal quantum number, designated n, which defines the probability of ...

The test subject that produced the first 3D magnetic resonance image was quiet and a bit hairy. Tough on the outside, the patient was a big softie at heart. It was also not human. Nobel Prize-winning ...

An exhibit at Philadelphia's Science History Institute looks at food science through the lens of the school lunch program. (Emma Lee/WHYY) From Philly and the Pa. suburbs to South Jersey and Delaware, ...

The Science History Institute preserves and interprets the history of chemistry, engineering, and the life sciences. During a ceremony in Philadelphia on June 10, the American Chemical Society ...

Science occasionally gives us clearer views of the distant past. This year, researchers opened windows into the life and times of ancient Romans, impressionist painters and other towering historical ...

Why do we think of STEM, history and the arts as separate categories, when each informs and enriches the other? A statue of scientist Joseph Henry stands in Academy Park in Albany. As I walked past a ...

Synthetic dyes made fashion more vivid, like this hot pink miniskirt suit, designed by Ben Zuckerman in 1964. (Emma Lee/WHYY) From Philly and the Pa. suburbs to South Jersey and Delaware, what would ...

If you've got kids in tow, plan on stopping by the Museum of Science & History, formerly known as the Pink Palace Museum. Housed in a flamboyant pink mansion constructed by supermarket tycoon Clarence ...

Philadelphia children eating a "three-cent dinner" at school, featured in the 1913 book School Feeding: Its History and Practice at Home and Abroad Science History Institute A new exhibition in ...