1 metre is longer than 1 centimetre, so to convert from metres to centimetres, multiply by 100. 1 millimetre is shorter than 1 centimetre so to convert from millimetres to centimetres, divide by 10.

The human brain remains, for the most part, something of a mystery. However, that hasn't stopped researchers from attempting to untangle one of the most complicated objects we as a species have ...