You know about carbon nanotubes, right? They’re very, very tiny tubes made only of carbon, and they’re very, very strong. They’re also very light, which makes them good for building things that need to be both strong and light. Do you know what the Tour de France is? It’s a very famous bike race that happens every year. This year will be the first time that some of the racers will be using bikes that are built with carbon nanotubes. These bikes are lighter that many other bikes because of the carbon nanotubes, and will help racers travel faster with less effort. They’re also tough so they won’t break easily. We’ll have to wait and see if one of the nanotube bikes helps someone win the race!