"Inventions That Shook the World" is a miniseries that aired on the Discovery Channel and details the origination of some of the century's most important inventions. Each video is approximately 45-50 minutes in length and would be a great addition to any CTE or STEM class.The 1920s episode highlights the following inventions: movie sound, the lie detector, refrigerator, television, and liquid rocket fuel. Other inventions are mentioned in short clips, such as sliced bread, folding electric car,