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Pop Gun


Pull the rope to raise the bowling ball. Release the rope. What happens to the tennis ball?

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The falling bowling ball forces the gas trapped in the big tube along the smaller tube. The gas pressure rises forcing the tennis ball out at speed, giving a nice pop. This is an example of a controlled mechanical explosion.

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Look Closer

Welcome to Look Closer, Techniquest's brand new digital tool. We're trialling Look Closer as a way of offering you a closer look at the science demonstrated by many of our exhibits. You'll find visitor sheets, videos, articles on contemporary science as well as fun trails to navigate your way around the exhibition space.

Speak to our Science Communicators to find out more.