Enter the world of defence scientists and engineers and discover how science changes the rules of the game on the battlefield!Defending Science is a collaboration between DSO National Laboratories and Science Centre Singapore.This exhibition is filled with multimedia exhibits, interactive games and adrenaline-packed workshops.Highlights Strike the platesThe hardness of a material is determined by its resistance to physical alterations when a force is applied. Test the hardness of a material by listening to its pitch after striking it with a mallet. The higher the pitch of the sound, the harder the material! Hover BallWhen one fan has a higher speed than the other, notice how the ping pong ball moves towards the side with the lower fan-speed. Altering the fan-speed on both sides causes changes in pressure, and hence changes in the position of the ball.