Short demo: The fan in a vacuum pushes air out, creating a system of low pressure. This in turn creates a system of low pressure within the bag, allowing for an entertaining demonstration of the power ...

Nails made from lasagna, racquetballs that shatter like glass, exploding pop bottles and rags that don't burn? All part of the annual science demonstrations for fifth graders at Calvin College by ...

We’ve known for a long time that the planets travel around the sun, but there was a period where this was still new, exciting, and worthy of public demonstrations. Eighteenth century artist Joseph ...