What is an invention?
A plagiarism.
A new creation.
Who created the first long-lasting light bulb?
Alexander Graham Bell
Thomas Watson
Thomas Edison
Galileo Galilei
Who invented a computer?
Hans Lippershey
Cai Lun
Thomas Watson
Charles Babbage
Who invented the first telescope?
Alexander Graham Bell
Galileo Galilei
Neil Armstrong
Hans Lippershey
Who was the first to aim a telescope to the sky?
Charles Babbage
Hans Lippershey
Galileo Galilei
Wright Brothers
Who invented papers?
Cai Lun
Charles Babbage
Who invented the first engine-powered glider?
Wright Brothers
Montgolfier Brothers
Abbas Ibn Firnas
Hans Lippershey
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?
Hydrogen
Oxygen
Krypton
Helium
What is the object that casts a shadow on the dial of a sundial?
dial
gnomon
A sundial/shadow clock can be useful in
sunny days
cloudy days
rainy days
stormy days
What is NOT a timekeeping device back in the olden days?
sundial/shadow clock
smartwatch
water clock
candle clock
Who discovered the law of pendulum?
Montgolfier Brothers
Charles Babbage
Galileo Galilei
Thomas Watson
