Upgrade your locks with fingerprint-scanning or a keypad, whether it’s at the front door or a sliding glass entryway. Facilities that make wood pellets have a track record of catching alight. Yet ...

Four hundred years before the birth of Christ, the renowned Greek philosopher, Democritus, suggested that all matter is composed of tiny, discrete, indivisible particles Four hundred years before the ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

“When were atoms first discovered?” I was recently asked. The question often comes up at this time of year, as our students embark on their first course in modern physics. As so often in the history ...

Stenger, an emeritus professor of physics at the University of Hawaii, argues in this quick philosophical treatise and history of atomic theory that the existence of the atom proves that God doesn’t ...