Think Lego is only for children? Brick Féile, next weekend’s Irish model-building festival, puts paid to that idea ...

Matter is made up of small particles called atoms. Atoms can exist on their own or together as molecules. Atoms are very small and around 100,000,000 of them end to end would measure 1 centimetre.

Somewhere in Highlands Ranch, Colorado, there’s a store that will make you forget what you came in for and leave with ...