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Roll one of the balls into the table and watch what happens.

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The ball rolls around the two black holes in the table until it disappears down one of them. The table is shaped so that balls rolling on it follow similar paths to planets orbiting around two stars. The steeper the slope of the table, the stronger the force of gravity. Try to predict which hole the ball will go down.

The gravity of our situation

This video shows how massive object warp space time, how objects move in space and partly how our solar system formed.

Videos 3 years ago

Successfully managed to produce a figure of eight pattern on obits

The table's surface represents the gravitational field around a pair of massive bodies - stars or "black holes". As there are two "stars", the orbit is much more complicated and will either be an oval, a figure-of-eight or a "W" shape. The closer the ball gets to the hole, the steeper the slope and so the ball feels a stronger and stronger pull as it rolls nearer to the hole - just like the gravity around a star.

Videos 4 years ago

Brian Greene Explores General Relativity in His Living Room

Using a homemade space-time simulator made out of spandex, physicist Brian Greene explains Albert Einstein’s general theory of relativity with a shot put, marbles, and two helpful sidekicks.


Visitor Sheet

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Orbits Visitor Sheet

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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.