Jelly Baby Wave Machine

The legendary jelly baby wave machine started out as an item in a children’s TV show back in 2004, and is now seen in classrooms around the world. It’s a terrific demonstration for teaching wave motion: every component is familiar, they’re put together in an extremely simple way, yet the behaviour is surprising.

I made this film a good few years ago now, and it’s been available from the National STEM Centre’s excellent eLibrary, where we think it’s been the most popular single resource. However, you had to be logged in there in order to download a rather poor-quality version. Happily, the National STEM Centre have launched a new YouTube channel, and they’ve uploaded the original high-definition film in its full glory. All the other physics demonstration films I’ve made with teacher and film-maker Alom Shaha will follow over the coming weeks.

If you haven’t tried the jelly baby wave machine with your classes, do give it a go. There are support materials available from the eLibrary, and we think you’ll like the impact it has on your students.

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