There are many patterns of collective behavior in biology that are easy to see because they occur along the familiar dimensions of space and time. Think of the murmuration of starlings. Or army ants ...

Custom-assemble five fluorine atoms with a few other atoms, and the product is a molecule. It’s also a computer. The problem that it’s solved is a simple one, but the exercise provides experimental ...

Once upon a time computers filled entire rooms, reading numbers from spinning tapes and churning them through wires to do chains of basic arithmetic. Today they slip into our pockets, performing in a ...