Wedge

The video tutorial introduces wedges as simple machines that help push things apart. It defines a wedge as a triangle-shaped piece of solid material with at least one slanting side ending in a sharp edge. Examples include knives, axes, chisels, and shovels. The tutorial discusses the historical evolution of wedges and their modern applications, such as in airplanes and ships. It concludes with a reflective question about the wedge shape of predator teeth.

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