Despite a New Orleans law that says ladders must be set back from the curb, the rule is often openly flouted, particularly on the St. Charles Avenue parade route. A child fell off a ladder and was ...

What shapes does a ladder make as it falls away from a wall? Oxford University wants to know. The solution may remind you of another puzzling math thought experiment. Related tools include a drawing ...

WSJ Buy Side is The Wall Street Journal’s research and commerce team. Our commerce content is distinct from our newsroom coverage. We earn a commission from some links in our articles. Learn more. A ...