Flexible Golf Ball

When you think of a golf ball, you're probably thinking of it as something solid and certainly not as something flexible. But your eyes are pulling a trick on you! Watch what REALLY happens when you smash a golf ball against a steel plate. 

Melting rock using only sunshine

Who has never tried to burn stuff using just a magnifying glass and the light of the sun? The staff of the Solar Furnace Research Facility in the south of France certainly have. This fragment from Bang Goes The Theory (BBC) demonstrates their version of the experiment.