Image

This STM image of an oval-shaped array of iron atoms on a copper surface is a real experimental tour de force. But what do you think is the world's most beautiful experiment? (Picture credit: IBM Almaden Research Center)

This STM image of an oval-shaped array of iron atoms on a copper surface is a real experimental tour de force. But what do you think is the world's most beautiful experiment? (Picture credit: IBM Almaden Research Center)