See why astronauts are taller in space
Use books and sponges to represent a human spine and understand why astronauts grow taller in space, where gravity is much weaker.
You will need:
- You will notice that the stack measures more without the rubber band (or the rope).
What it means:
In this exercise, the books represent your vertebrae, the sponges represent the spongy tissue between your vertebrae, and the combination of the two represents your spine. The rubber band (or tightened rope) represents the force of gravity.
As you have seen, the force of gravity compresses the discs in the spinal column. When that force disappears, our spine stretches and we grow taller. That is why astronauts become taller when they are in space, where gravity is much weaker than on Earth.
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