PhysicsDoes tapping a beer can prevent it foaming over? 51¶¯Âþs found out A rigorous randomised trial has put to bed the idea that tapping or flicking a can of beer makes bubbles come to the top and prevents the liquid fizzing out 51¶¯Âþ
PhysicsWe've discovered a strange twist in the story of how crystals form The defining feature of a crystal is that it is made from regular, repeating blocks, but a chance discovery in an old German book has turned that view on its head 51¶¯Âþ