Riding Sharks, Counterfeiting $100 Bills, Crashing Drones, and More

I think it's safe to say we're all in need of a relaxing weekend. Lucky for you, we've got just the thing. Whether it's a countertop gadget that makes weed butter, a 400-year-old math problem that's finally been solved, or a peek inside NYC's new giant tunnels, here's the best stuff we did this week.