The Barometer. It is an instrument that measures air pressure. But how does it work? Why was this technology invented? What does it help us do?
Though it seems like a little technology, it advanced how weather forecasters and scientists predicted extreme weather events. Despite the Barometer's incredible usefulness, inventing it was not easy. Asaf Bar-Yosef describes the series of scientists and events that contributed to the birth of the barometer -- and explains how it actually works in this Ted-Ed video. If you are planning to begin measuring units and climate change with your students this may be a great little history and tech lesson that you could implement in the classroom with a simple experiment.
Lesson by Asaf Bar-Yosef, animation by Reflective Films.