Science & Technology

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	'Automatic' calculators 1 member comment
	2-prong ungrounded AC outlets 2 member comments
	The Apollo space program 1 member comment
	ARPANET
	Audio tape splicing blocks 1 member comment
	BASIC programming language 3 member comments
	Bendix G-15 computer
	Card sorters
	Charge-coupled device (CCD)
	Clock radios with Telechron clocks 1 member comment
	Cycles per second
	DNA double-helix structure
	Dry cell batteries
	First all-electronic desktop calculator 1 member comment
	First geosynchronous communications satellite
	First home video tape recorder
	First human spaceflight 1 member comment
	First successful heart transplant
	First successful kidney transplant
	First successful liver transplant
	First successful minicomputer
	First working Laser
	FORTRAN programming language 2 member comments
	Friden Flexowriter
	Fuses and fuse boxes 2 member comments
	The Gemini space program
	Hollerith ('IBM') punch cards 3 member comments
	The iron lung 1 member comment
	Keypunches
	Magnetic core memory
	Mainframe computers 1 member comment
	Manual adding machines 1 member comment
	Manual cash registers
	McBee Keysort edge-notched cards
	The Mercury space program
	The new-fangled transistor
	Nixie tubes
	Not-quite-all-electronic telephone switching system
	Polio vaccine introduced 1 member comment
	Princess phones
	Reel-to-reel tape recorders 2 member comments
	Rotary phones, alpha prefixes... 4 member comments
	Spacewar!
	Sputnik
	Switchboard operators
	Teletype ASR-33
	Telstar 1
	Touch-Tone telephones introduced
	UNIVAC 1
	Vacuum tube testers 1 member comment
	Vacuum tubes 3 member comments
	Vibroplex Morse Code keys
	Western Union telegrams
	X-15 rocket plane

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