Simple machines can be regarded as the elementary "building blocks" of which all more complicated machines (sometimes called "compound machines") are composed. For example, wheels, levers, and pulleys ...

How Levers, Pulleys and Gears Work Posted: January 17, 2025 | Last updated: January 17, 2025 This video explores different methods that can be use to amplify a force, and focuses on three types of ...

Seventh graders attending the North Salem Middle School created extraordinary mechanical marvels last week by using ordinary classroom materials. The 12-year-olds enrolled in Sandy McDonough’s STEM ...