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invention of the vacuum cleaner
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invention of air conditioning; automatic tea maker
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invention of electrocardiogram; first powered flight
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electrocardiogram; first powered flight
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radar; tea bags
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invention of plastic
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radio broadcasting
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invention of electric washing machine
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invention of coffee filter; water coolers; paper cups
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invention of crossword puzzles; bras; zips
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invention of sonar
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invention of hair dryers; kiss-proof lipstick
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invention of robots; insulin
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invention of rozen food
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invention of television
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invention of aerosol sprays
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invention of Talkies’ at the movies
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invention of penicillin
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invention of jet engine; mechanical toothbrushes; Scotch tape
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invention of parking meter
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invention of electric guitar
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invention of sun tan lotion; electric blanket
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invention of ballpoint pen; photocopying
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invention of helicopters
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invention of first nuclear reactor built;
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invention of microwave ovens; automation; Bikini; Tupperware; Tupperware Parties
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invention of transistors; holograms; mobile phones
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invention of frisbees; velcro; general purpose computers; contact lenses
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invention of credit cards
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invention of Tetrapak cartons of milk
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inventon of wide-screen cinema
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invention of transistor radio
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invention of solar cell
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invention of atomic clock
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invention of video tape recorder
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invention of satellite
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invention of video games; modems
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invention of car seat belts
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invention of cardiac pacemaker; laser
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invention of Man in Space
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inventon of computer mouse; miniskirt
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invention of optical disc; bay buggy; HTML
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invention of pocket television
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invention of portable calculator
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invention of biometrics; Workmate; artificial heart
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invention of the Internet; cash dispenser
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invention of LED and LCD’s
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invention of floppy disc
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invention of barcodes; post-it-note; car airbags
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invention of personal computer; laser printer
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invention of MRI scanner; inkjet printer
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invention of first personal stereo
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invention of Hepatitis B vaccine
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invention of disposable contact lenses
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invention of World Wide Web