On Windows computers, we open files and folders by double-clicking the left mouse click. But for some users, double-clicking is not working. Nothing happens when they double-click on any item!

Several promising drug leads have been identified using a high-throughput method for testing large libraries of molecules made using ‘double-click’ chemistry. Click reactions are highly ...

In “Double Click,” the writer Carol Kino explores the pioneering glamour of a famous fashion-photography pair. The twins Franny and Fuffy McLaughlin pictured at age 10 in a circa-1929 photograph.