The late conservative activist Charlie Kirk explains physics concepts to his young daughter using her sippy cup in a ...

CHICAGO — You might think scientists would have figured out by now the answers to such basic questions as why water droplets splash, why sand castles collapse and what makes shaving cream so creamy.

Nuclear physics is a forbidding subject, even for trained physicists. To understand current news and discussions about nuclear science and technology, some background knowledge is required, and the ...

There is a new standard in town, and it's sort of a big deal. This new standard is the definition of the kilogram, the unit of mass in the SI system—the International System of Units). It replaces the ...