An electrical engineer explains how smoke detectors work, and how to reduce the chances of a false positive.
Jan. 8, 2021 • ~5 min
curiosity electrical-engineering curiosity-question multimedia fire-safety
There are 15 different kinds of electrical outlets around the world. One standard would be more convenient, but no one wants to change theirs.
Dec. 21, 2020 • ~6 min
electricity electric-grid safety curious-kids curious-kids-us electrical-grid electrical-engineering voltage thomas-edison nikola-tesla building-standards
Sensors are everywhere, from your phone to your medicine cabinet. Here's how they turn events in the physical world into words and numbers.
Dec. 7, 2020 • ~4 min
engineering physics chemistry sensors biosensors curiosity electrical-engineering