What is an invention?
A plagiarism.
A new creation.
Who created the first long-lasting light bulb?
Thomas Edison
Alexander Graham Bell
Galileo Galilei
Thomas Watson
Who invented a computer?
Thomas Watson
Charles Babbage
Hans Lippershey
Cai Lun
Who invented the first telescope?
Galileo Galilei
Neil Armstrong
Alexander Graham Bell
Hans Lippershey
Who was the first to aim a telescope to the sky?
Charles Babbage
Galileo Galilei
Hans Lippershey
Wright Brothers
Who invented papers?
Cai Lun
Charles Babbage
Who invented the first engine-powered glider?
Hans Lippershey
Wright Brothers
Abbas Ibn Firnas
Montgolfier Brothers
Why did Wright Brothers build their own engine?
There was no such powerful engine available.
The engine was too expensive.
What gas that lifts up an airship to the sky?
Krypton
Helium
Oxygen
Hydrogen
What is the object that casts a shadow on the dial of a sundial?
dial
gnomon
A sundial/shadow clock can be useful in
cloudy days
sunny days
rainy days
stormy days
What is NOT a timekeeping device back in the olden days?
sundial/shadow clock
smartwatch
candle clock
water clock
Who discovered the law of pendulum?
Thomas Watson
Galileo Galilei
Montgolfier Brothers
Charles Babbage
