A giant Pyrex jug, 10ft tall, took pride of place in the town’s centre. That celebration now seems like a distant, gut-wrenching memory. Some locals now call Charleroi “Little Haiti”.

Science presenter Jon Chase explains the refraction of light. He demonstrates how refraction can make the handle of a Pyrex jug seemingly disappear. He explains this is because when light travels ...

This video looks at the refraction of light and demonstrates how refraction can make the handle of a Pyrex jug seemingly disappear.