As anyone who has ever had to brush long hair knows, knots are a nightmare. But with enough experience, most learn the tricks of detangling with the least amount of pain—start at the bottom, work your way up to the scalp with short, gentle brushes, and apply detangler when necessary....

Researchers at the Institute for Futures Studies in Stockholm, Sweden, have created a mathematical model to predict changes in moral opinion. It predicts that values about corporal punishment of children, abortion-rights and how parental leave should be shared between parents, will all move in...

A new, elegant equation allows scientists to easily compute the quantum information lifetime of 12,000 different materials....

This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research....

Math is the language of the physical world, and Alex Townsend sees mathematical patterns everywhere: in weather, in the way soundwaves move, and even in the spots or stripes zebra fish develop in embryos....

Can you work out the height of Baby Bear's chair and whose bed is whose if all the things the three bears have are in the same proportions?...

The famous film star Birkhoff Maclane wants to reach her refreshing drink. Should she run around the pool or swim across?...

Can you make sense of the three methods to work out what fraction of the total area is shaded?...

A red square and a blue square overlap. Is the area of the overlap always the same?...

Do you agree with Badger's statements? Is Badger's reasoning watertight? Why or why not?...

## Pages