What are some of the new technological innovations from roaring 20's?

Cars, talking movies, radio, penacilien

Answer:The decade's technological discoveries were among the most important of the 20th century, such as the first liquid-fueled rocket, which ushered in the Space Age. Other inventions focused on efficiency, comfort, and entertainment - hair dryers, sunglasses, BandAids, and even cheeseburgers were all born in the 20s.