Visitors are challenged to span the gap between a platform and a tower with Build a Bridge . Recognizing the base of support for the bridge and the first block's balance point is not a problem but it takes a crash or two, for visitors to discover that when the blocks are stacked together, each of their balance points change because they are no longer being used independently. After that is determined, all that is required is a steady hand. Visitors make buildings wiggle, jiggle and quake into resonance by controlling earthquake frequencies of the Earthquake Resonance exhibit. Observing that buildings of different heights go into resonance at different frequencies, visitors discover that earthquakes are made up of waves of energy that can vary not only in their magnitude but also in their frequency.
Visitors also compare the structural aspects of each building to see how they withstand earthquakes.
Now they're on their way towards discovering what makes a structure strong whether it represents a chemical bond or the frame of a house. Tumultuous Towers gives you the opportunity to see how high can you build a tower of blocks before it topples. Gravity is working against you so remember to start with a wide base and keep your center of mass over your base of support. When the air stream is passed over the ball, high and low pressure zones are created that cause the ball to float. Find out the answers in Quake House .