If Block Division Inc. isn’t the best kept secret in Wichita Falls, it has to be close. Block Division is a third generation, locally owned company. It sells more than 450,000 state-of-the-art pulley ...

Pulley systems are simple machines that make lifting heavy objects easier. They consist of a rope or cable that passes over one or more wheels (pulleys). A single pulley changes the direction of force ...

Have you ever seen a flag being raised, or wondered how a mechanical clock works? Let’s take a look at some of the simple mechanisms that they use. Pulleys and gears. When a flag is raised, it will ...