Henry Louis Gates, Jr. explores the Italian roots of Joy Behar & Michael Imperioli. Henry Louis Gates, Jr. explores the family trees of talk show host Joy Behar and actor Michael Imperioli—two ...

Discover a fast and powerful calculus-based method for finding square roots with impressive accuracy. This explanation shows how derivatives and iterative approximation can be used to quickly zero in ...

Dementia is often associated with older people, but it doesn't just appear out of nowhere. Some risk factors could start before we're even born, while others emerge as we progress through childhood ...

Henry Louis Gates Jr.'s fascination with genealogy began at age 9 after his grandfather's funeral. His PBS show "Finding Your Roots" combines traditional genealogy with modern DNA technology. He hopes ...

EUSTIS, Fla. — It all started with grief—and turned into something much bigger. After losing her parents in 2000, Margaret Reese-Williams started exploring her family history to honor their memory. A ...