Cassette tapes, chocolate, and microwave ovens
Telephones, sewage treatment, and video
Batteries, water, and fuel injection
Records, neon, and the cathode-ray tube
Light bulbs, the Canadian Standards Association, and modems
Electricity, glass bottles, and brakes
The history, operation, manufacturing, and testiing of the toilet
Cable television, the subway, and engineering
Traffic signals, a natural gas pipeline, and alternating current
Digital computers, folding paper cartons, and the electric shaver
Electronics, the body shop, and coin units in vending machines
Composite substances, piano rolls, and automobile alignment
Engines, wire, and satellites