Question 1
Which inventor is famously credited with developing a commercially viable incandescent light bulb in 1879?
Answer
Thomas Edison
Thomas Edison is widely recognized for his work in 1879, which led to the creation of the first commercially successful incandescent light bulb.
Question 2
Alexander Graham Bell was awarded the first U.S. patent for which communication device in 1876?
Answer
The telephone
Alexander Graham Bell received the first U.S. patent for the telephone on March 7, 1876, revolutionizing the way humans communicate across distances.
Question 3
Johannes Gutenberg changed the world around 1440 by developing what type of machine in Europe?
Answer
The mechanized movable-type printing press
Gutenberg's development of the mechanized movable-type printing press around 1440 allowed for the mass production of books, drastically increasing literacy rates across Europe.