or log in
It is a well-known phenomenon that the sound of an approaching sound source is higher than that...
A spacecraft on its path is in a constant state of free fall.
In this experiment, we use buoyancy to study the balance of two glasses of water.
A spectacular optical illusion using a chain of closed rings.
These great scientists had a tremendous impact on the advancement in physics.
The length of the metal frameworks of bridges change when the temperature changes.
Can a candle be re-lit if the flame of the match does not even touch it?
We can further develop the machine we presented in the previous video, so it can dispense...