SUGGESTIONS FOR STARTING TASKS
During the first visit, it pays to have a lesson after some general exploring – but no worries, you do not have to be a natural scientist to do so! Many exhibits show references to everyday life and help students and visitors of all ages begin to explore scientific issues.
Some exhibits are particularly suitable for starting out:
What happens if you move only one ball? How does the model move when both balls are simultaneously deflected in different directions or in the same direction?
As soon as the spring stops moving, you can start. Steer the lever once to the left. On the right side, a wave runs to the end of the spring. What happens to the shaft at the end of the spring? What does it do?
Move the lever back and forth at regular intervals. Will you be able to choose the timing so that there are exactly two, three or four antinodes? Stop the time: How often does the wave oscillate in two waves in ten seconds? How often with three or four antinodes?
Pull the sacks up. Compare how far you have to pull the rope here. What is the relationship between the length of the rope and the number of rollers? On which rope do you have to pull harder, and which less?
Turn the crank evenly. Observe the movement of the wheel. Describe the movements!
MOVING PICTURES IN THE ZOETROPE
How do pictures become fluid movements? Look through one of the viewing slots of the film drum and see how the figures move! How is this illusion possible?