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 ...

I own a digital 24-hour clock (i.e., a military time clock) that displays in HH:MM format. Each digit uses the standard seven-segment display in which seven lights toggle on or off to form numbers, as ...

This investigation looks at what plastic is, what it’s used for and how it impacts on the environment. The practical element investigates how plastics can get into the water cycle. This investigation ...