Growing up with science: the illustrated encyclopedia of invention, Michael W. Dempsey, H.S. Stuttman, 1984, ISBN 978-0-87475-830-6, ... A ski is a long narrow piece of stiff but flexible (bendable) material. The front is pointed and turned up slightly, and is called the tip. The part where it widens out is the shovel. Toward the center is a narrower section ...
