But sometimes you get special objects that light bounces off… Seymour: like this shiny metal spoon. Albert: This is called a reflection! So now we know that light can come from different sources ...

This means light doesn't travel through them. Light bounces back off the object. On the other side of the object a shadow is formed. Larger objects produce larger shadows. This is because they ...

While reflection happens when radiation – for example, visible light – bounces off a surface without being absorbed, emission occurs when something releases its own energy in the form of ...

This is similar to an insect bouncing off an obstacle in nature. GimBall’s design is a bit of a departure from the norm as well. Contra-rotating airplane propellers provide thrust while ...