or log in
How can this pendulum accurately measure time in seconds?
In this experiment we prove that it is possible to cut a bottle with just a string.
The animation shows the way forces act on wheeled vehicles and vehicles with runners.
Learn how to pierce a balloon without popping it.
Simple harmonic motion can be considered to be the one-dimensional projection of uniform...
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...
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the...