🌿 Burrs + a fabric fastener, Swiss engineer George de Mestral came up with Velcro after noticing burrs sticking to his clothes and his dog’s fur. He studied their tiny hooks and copied the idea to create a new kind of fastener., 🧇 Waffle iron + running shoe, Running coach Bill Bowerman created the Nike Waffle Sole while looking for a shoe with better grip that was still lightweight. The pattern of a waffle iron inspired its unusual sole., 🔖 Weak glue + bookmark, Spencer Silver and Art Fry turned an unusual weak glue into Post-it Notes. Silver had created the adhesive by accident, and Fry later realized it was perfect for bookmarks that needed to stay in place without damaging the page., 🐦 Kingfisher beak + bullet train, Engineer Eiji Nakatsu helped redesign Japan’s Shinkansen bullet train after noticing how smoothly a kingfisher enters the water. Its long beak inspired a new train nose that helped reduce noise in tunnels., 🚲 Bicycle grip + kitchen tool, Sam Farber and the Smart Design team developed OXO Good Grips because Farber wanted kitchen tools that were easier and more comfortable to hold. They borrowed the idea of thick, soft handles from bicycle grips., 🥐 Croissant + doughnut, Pastry chef Dominique Ansel created the Cronut by bringing together ideas from a croissant and a doughnut. He wanted to make something that felt familiar but was still completely new., 🧽 Wallpaper cleaner + modelling toy, Kay Zufall and the McVickers helped turn an old wallpaper-cleaning material into Play-Doh. Zufall realized that the soft material worked much better as something children could shape and play with., 🏠 Spare room + hotel-style accommodation, Brian Chesky and Joe Gebbia got the idea that became Airbnb when they needed extra money and nearby hotels were full. They offered spare space in their apartment to visitors and turned a simple solution into a new way to travel., 🔬 Microscope + folded paper, Manu Prakash and Jim Cybulski created the Foldscope because they wanted microscopes to be cheaper and easier to carry. They combined simple optics with folded paper to make a tiny working microscope., 🤖 Anti-bot test + scanned books, Luis von Ahn and his team developed reCAPTCHA after realizing that people were already spending time proving they weren’t robots online. They used that same effort to help computers read difficult words from scanned books.

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