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