This spooky science trick uses a magnet and a paper clip to make paper ghosts seem to fly through the air. It's a fantastic ...

This is a great example of the forces of magnetism and gravity. As long as you can make the ghost float, the force of the ...

When everything shakes, precision is usually impossible – everybody who has ever tried to take a photo with shaky hands or make handwritten notes on a bumpy bus journey knows that. With technical ...