Factoraly

Where would we be without windows? We wouldn't know, because we wouldn't be able to see out and work out where we were! From humble beginnings as holes in the wall, windows have come a long way, with whole buildings now seemingly being made from one enormous window!

Ding Dong - as Leslie Philips used to say. This one is all about the sonic metal . Bells have been around for a while, and we hear them every day—on the bus, at home, in the street, walking into shops, at cash registers—bells are everywhere. In this one, we delve into the history of the bell and work out what makes them so special.

Nothing is more ubiquitous than colour. It's everywhere.

Hairdressing is an ancient art, but never has it been more popular as a profession. Barbers and hairdressers are popping up on an almost daily basis. What's their origin? And what makes us so loyal?

Everyone has a birthday. And almost everyone celebrates it. This is our 52nd week of Factoraly which means that we've been going for a year! So we're celebrating with this episode on birthdays.

Simon is on the scent of facts. Bruce is a bit whiffy. Perfume has existed since the first chemists in Ancient Egypt. In this episode, we examine its constituents, uses, celebrity endorsements, and the reason why perfumes smell different on different people.