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100 Inventions That Changed the World

Popular Science released its list of the 100 Inventions that Changed the World in May 2015. How many can you identify?
Inventions include ideas, tools, machines and processes.
If you've played Sid Meier's Civilization, the game's tech tree is a good place to start.
Quiz by Kestrana
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Last updated: May 18, 2015
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First submittedMay 17, 2015
Times taken304
Average score19.6%
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5500 - 1 BC
Answer
Transportation
Wheel
Communication
Alphabet
Construction
Nail
Navigation
Compass
Mathematics
Abacus
Construction
Screw
1 - 1600 AD
Answer
Communication
Paper
Mathematics
Arabic Numerals
Military
Gunpowder
Energy
Windmill
Communication
Printing Press
Time Keeping
Clock
Time Keeping
Gregorian Calendar
Communication
Pencil and Pen
1600 - 1800 AD
Answer
Science
Microscope
Astronomy
Telescope
Mathematics
Calculus
Energy
Capacitor
Sanitation
Flush Toilet
Transportation
Steam Engine
Mechanical
Ball Bearing
Agriculture
Cotton Gin
1800 - 1850 AD
Answer
Military
Rifle
Energy
Battery
Business
Corporation
Construction
Cement
Agriculture
Refrigeration
Optics
Camera
Agriculture
Fertilizer
Energy
Oil Refining
Medicine
Stethoscope
Communication
Telegraph
Medicine
Anesthetic
1850 - 1900 AD
Answer
Medicine
Hypodermic Needle
Construction
Steel
Construction
Dynamite
Agriculture
Mechanical Reaper
Communication
Telephone
Music
Phonograph
Fashion
Jeans
Energy
Lightbulb
Energy
Alternating Current
Construction
Steel Skyscraper
Transportation
Internal Combustion Engine
Transportation
Automobile
Communication
Radio
1900 - 1950 AD
Answer
Communication
Morse Code
Fashion
Zipper
Material
Silicone
1900 - 1950 AD
Answer
Military
Radar
Medicine
X-Ray
Medicine
Electrocardiogram
Manufacturing
Moving Assembly Line
Military
Submarine
Military
Sonar
Fashion
Brassiere
Agriculture
Pasteurization
Sanitation
Wastewater Treatment
Medicine
Penicillin
Entertainment
Television
Manufacturing
Plastic
Material
Teflon
Communication
RFID
Medicine
Condom
Military
Guided Missle
Transportation
Jet Engine
Military
Atomic Bomb
Electronics
Transistor
Optics
Holography
1950 - 1990 AD
Answer
Medicine
Vaccinations
Music
Electric Guitar
Transportation
Locomotive
Computing
Computer
Energy
Nuclear Reactor
Fashion
Velcro
Transportation
Shipping Container
Communication
Satellite
Medicine
Contraceptive Pill
Medicine
Pacemaker
Entertainment
Videotape
Military
Drone
Astronomy
Saturn V Rocket
Electronics
Optical Sensor
Energy
Hydraulic Fracturing
Electronics
Laser
Military
Kevlar
Computing
Fiber Optics
Entertainment
Video Games
Entertainment
Remote Control
Electronics
Microcontroller
Medicine
CT Scan
Military
Stealth Aircraft
Medicine
In Vitro Fertilization
Computing
Graphical User Interface
Entertainment
Virtual Reality
1990 - Today
Answer
Energy
LED Lightbulb
Computing
Internet
Medicine
Cloning
Construction
Carbon Nanotubes
Manufacturing
3D Printing
ander217
+1
Level 75
May 18, 2015
I was very close on some of these - water treatment facility, gasoline, fuel, EEG, Cat scan (smacked my head on that one - I knew better ), rocket, nuclear energy, toilet, - would you consider any of these as alternative answers? (Especially EEG and water treatment facility.)
Kestrana
+1
Level 60
May 18, 2015
EEG, nuclear power and Cat scan are good suggestions. Toilet would have worked. I think just "rocket" is too easy thought because its really the specific Saturn V rocket that enabled the moon landing, not just rockets in general.
ander217
+1
Level 75
May 18, 2015
Great quiz, BTW.
Deathsunglasses
+1
Level 46
Feb 9, 2017
Fridge should have worked. Also, engine and combustion engine should have worked as well.

Elevator and windows should be added, not to mention airplane as opposed to just "Jet Engine"

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