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Hint
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Answer
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Willis Carrier invented this device to control indoor climate and humidity
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Air Conditioner
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This navigational instrument, using Earth's magnetic field, was vital for maritime exploration
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Compass
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Alessandro Volta created the first true one of these electrical storage devices
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Battery
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Antonie van Leeuwenhoek made significant improvements to this device, which magnifies small objects
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Microscope
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René Laennec invented this device to listen to the internal sounds of the human body
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Stethoscope
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Galileo Galilei improved this device to observe distant celestial objects
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Telescope
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Charles Goodyear discovered the vulcanization process for this elastic material
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Rubber
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The Romans were known for their extensive use of this building material, made from cement
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Concrete
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This medical invention, used during surgery, can render patients unconscious and pain-free
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Anesthesia
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Alfred Nobel invented this powerful explosive material
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Dynamite
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Elisha Otis developed a safety mechanism that made this vertical transport device practical for buildings
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Elevator
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This device converts kinetic energy from the wind into electrical power
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Wind Turbine
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Chester Carlson invented this device, which duplicates documents using electrostatic charges
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Photocopier
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This satellite-based system provides geolocation and time information to a GPS receiver anywhere on Earth
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GPS
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This device creates three-dimensional objects from digital models by layering materials
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3D Printer
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This device combines a mobile phone with a handheld computer, featuring touch screens and internet access
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Smartphone
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This portable device allows users to play digital audio files, revolutionizing the music industry
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MP3 Player
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This broad term includes devices like the incandescent bulb and LED, used for illumination
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Electric Light
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Whitcomb Judson and Gideon Sundback developed this fastening device commonly used in clothing
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Zipper
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This class of drugs fights bacterial infections, with penicillin being a famous example
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Antibiotics
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These artificial objects orbit Earth for purposes like communication and weather monitoring
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Satellite
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These small lenses, worn directly on the eyes, correct vision
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Contact Lenses
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This watercraft is capable of underwater operation, used for military and research purposes
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Submarine
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This musical instrument, amplified through electric pickups, transformed modern music
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Electric Guitar
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This medical device regulates the heartbeat using electrical impulses
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Pacemaker
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