πŸ’‘ Everyday Inventions/ Tools
πŸš‚ Transportation
πŸ“ž Communication & Technology
πŸ‘¨β€πŸ”¬ Name That Inventor
πŸ‡ΊπŸ‡Έ 250 Years of Innovation
100

Thomas Edison helped develop a practical version of this invention that allowed people to light their homes with electricity.

What is the electric light bulb?

100

This two-wheeled vehicle uses pedals, a chain, and gears to transfer power from the rider to the rear wheel.

Bicycle

100

This device allows two people in different locations to speak to each other using their voices.

Telephone

100

This American inventor is famous for developing a practical electric light bulb and held more than 1,000 U.S. patents.

Thomas Edison

100

First flown successfully in 1903, this invention changed transportation by allowing humans to travel through the air under power.

Airplane

200

This measuring tool retracts into a small case and usually has a metal hook at the end.

Tape measure

200

This pedal controls how much power the engine sends to move the vehicle faster.

Gas pedal / accelerator

200

This device receives radio waves and converts them into sounds that you can hear.

Radio

200

These two brothers from Ohio built and flew the first successful powered airplane in 1903.

Orville and Wilbur Wright

200

Introduced in 1908, this famous automobile became affordable to many Americans because it was eventually produced using a moving assembly line.

Ford Model T

300

This tool uses a bubble inside a liquid-filled tube to tell whether a surface is perfectly horizontal or vertical.

Level

300

This part uses friction against a spinning disc to help slow and stop a vehicle.

Brake pad

300

Before telephones became common, this machine allowed people to send electrical messages over wires using a special code.

Telegraph

300

This inventor is closely associated with the telephone and famously spoke the words, β€œMr. Watson, come here.”

Alexander Graham Bell

300

Developed in the 1940s after an engineer noticed a candy bar melting near radar equipment, this invention changed the way Americans cook food.

Microwave oven

400

This fastener uses two strips covered with tiny hooks and loops that stick together when pressed.

Velcro

400

This part produces electricity while the engine is running and helps keep the battery charged.

Alternator

400

This device uses radio signals to communicate with nearby towers, allowing people to call and message without a wired connection.

Cell phone

400

This inventor developed an alternating-current electrical system and is famous for experiments involving high-voltage electricity.

Nikola Tesla

400

Developed in the 1970s, this navigation technology uses satellites and precise timing to determine a person's location on Earth.

GPS

500

This precision measuring tool has sliding jaws and can measure outside dimensions, inside dimensions, and depth.

Caliper

500

This part of a gasoline-powered vehicle changes the gear ratio between the engine and the wheels, allowing the vehicle to operate efficiently at different speeds.

Transmission

500

This device directs data between different computer networks and helps information find the correct path across the internet.

Router

500

This inventor developed a system of raised dots that allowed people who are blind to read by touch.

Louis Braille

500

First developed for military use, this technology uses radio waves to detect the location, speed, and distance of objects such as aircraft.

Radar