Did you know that a sharp knife can slice through an apple more easily than a dull one? It might seem like magic, but it all has to do with the science of cutting. Sharp objects, like knives or scissors, cut because they have a very thin edge. This thin edge puts a lot of pressure on whatever it touches. Think of it like stepping on a pencil with your foot. If you stomp down … [Read more...] about why do sharp objects cut