PEOPLE spoke to the practitioner who did Hilary Duff's 24-karat gold facial that she shared on her Instagram Stories.

If you’re going to give them the needles, you should be responsible for cleaning up after them,” a local mom told The Post.

How small can an electric motor be without resorting to manufacturing methods like lithography? In a recent video, [Chronova Engineering] on YouTube tries to replicate the 1960 McLellan motor that ...