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The length of the metal frameworks of bridges change when the temperature changes.
These great scientists had a tremendous impact on the advancement in physics.
In this experiment, we use buoyancy to study the balance of two glasses of water.
What is the speed of sound? What happens when an object exceeds the speed of sound?
The three important laws describing planetary motion were formulated by Johannes Kepler.
We can further develop the machine we presented in the previous video, so it can dispense...
Submarines submerge and surface by changing the average density of the hull.
The animation shows the way forces act on wheeled vehicles and vehicles with runners.