Audio
2 inventions in this category
Household (326) Energy (220) Materials (200) Communication (177) Computation (166) Agriculture (147) Medicine (146) Entertainment (145) Transportation (140) Warfare (116) Construction (63) Manufacturing (61) Measurement (55) Financial (14) Science (8) Navigation (7) Metallurgy (4) Exploration (3) Security (3) Physics (3) Maritime (3) Mathematics (3) Infrastructure (3) Automotive (2) Cryptography (2) Meteorology (2) Materials science (2) Electronics (2) Astronomy (2) Timekeeping (2) Architecture (2) Safety (2) Resource extraction (2) Textiles (2) Biology (1) Extraction (1) Mining (1) Nuclear (1) Lighting (1) Radar (1) Food (1) Industrial (1) Recreation (1) Woodworking (1) Chemistry (1) Testing (1) Optics (1) Food production (1) Visual arts (1) Office equipment (1) Telecommunications (1) Electrical (1) Tools (1) Food processing (1) Scientific instruments (1) Clothing (1) Health (1) Body modification (1) Hand tools (1)
Cassette tape
The cassette tape emerged because Lou Ottens had a wooden block in his coat pocket. In the early 1960s, the Dutch engineer at Philips was tasked with...
Moog synthesizer
The Moog synthesizer emerged simultaneously on opposite coasts from composers who had never heard of each other. In fall 1963, Robert Moog—a Cornell d...