by BlastRoom
Light, sound, flight and steel: who invented what between 1865 and 1915, and what each invention changed.
#united_states_history

40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
Alexander Graham Bell received his patent in March 1876 for which device?
What did Thomas Edison first build and demonstrate in 1877?
What did George Westinghouse patent in 1869?
Christopher Latham Sholes, Carlos Glidden and Samuel Soule received an 1868 patent for which machine?
What did George Eastman put on sale in 1888?
What did Elisha Otis invent?
Nikola Tesla's patents of 1888 covered which machine?
What did Elijah McCoy patent in 1872?
What did Jan Matzeliger patent in 1883?
Lewis Latimer received an 1882 patent for what?
What did Garrett Morgan patent in 1914?
What did Orville and Wilbur Wright build and first use at Kitty Hawk, North Carolina, on December 17, 1903?
What did George Washington Carver teach southern farmers at Tuskegee?
What did Madam C. J. Walker launch in 1905?
Who developed the first practical incandescent electric lamp, in 1879?
Who opened the Pearl Street station in New York City in 1882, the first central power plant in the United States to sell electricity to a whole district of customers?
Who patented the induction telegraph of 1887?
Who introduced the ice-cooled refrigerated railroad car that carried dressed beef out of Chicago?
Who installed the moving assembly line at the Highland Park plant in 1913?
Who put the Model T on the market in 1908?
Who spent twelve years and several failed attempts before finally linking Ireland and Newfoundland by telegraph cable in 1866?
Who reported hearing the Morse letter 'S' at Signal Hill, Newfoundland, in December 1901, sent by wireless from Cornwall?
Who licensed Nikola Tesla's alternating-current patents in 1888 and built power systems with them?
Who ran the Menlo Park, New Jersey, laboratory where a paid team of machinists and chemists turned out inventions as a business?
The Bessemer process blew air through molten iron to burn out its carbon, cutting the cost of steel sharply. What followed in American industry?
A brake that grips the guide rails when an elevator's rope snaps changed what about American cities?
Ice-cooled railroad cars let dressed beef travel from Chicago to eastern cities. What did that do to the meat business?
Central stations put electric light inside American factories in the 1880s and 1890s. What did that change most directly for the work done there?
By 1900 telephones sat on business desks in every large American city. What did the telephone change most directly about doing business?
The induction telegraph of 1887 passed messages between a moving train and the stations along its line. What did that most directly prevent?
In 1913 a Model T chassis began moving past workers who each repeated one task. What followed?
Before 1866 a message from London to New York traveled no faster than the ship carrying it. What did a working Atlantic cable change?
George Washington Carver worked out hundreds of uses for the peanut and the sweet potato and published them in free bulletins. What problem for farmers did that address?
Madam C. J. Walker sold her hair-care products through a trained national network of women agents who called at customers' homes. What did that system do?
Trains were once stopped by brakemen running along the car roofs turning hand wheels, and stops were slow and often fatal. Which invention, first patented by George Westinghouse in 1869, ended that?
Business letters and records were copied out by hand in ink, slowly and often illegibly. Which machine of the period fixed that?
Photography before 1888 meant heavy glass plates and a darkroom, so only professionals did it. Which invention put a camera into ordinary hands?
Joining a shoe's upper to its sole was skilled hand work and the slowest step in making a shoe. Which machine of 1883 took that step over?
Rescuers could not enter a tunnel or a burning building full of smoke and gas. Which device of 1914 let them go in?
A locomotive's moving parts had to be oiled by hand, which meant halting the train to do it. Which invention of 1872 kept the oil flowing while it ran?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

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The Progressive Presidents: Roosevelt, Taft and Wilson
30 questions