Inventions
What did Margaret Knight invent?
Flat-bottomed paper bags
Who invented the electric brake?
Victor Ochoa
What is a device?
A tool or machine made for a specific purpose
Why was the zipper important?
It improved the function of clothing and bags
When was the tin can invented?
1810
What problem did Momofuku Ando’s invention solve?
Food shortages
Who invented general anesthesia?
Seishu Hanaoka
What does identical mean?
Exactly the same
Why was the life raft important?
It helped save lives at sea
In what year was color television first broadcast?
1942
Which invention helps clear windshields in bad weather?
Windshield wipers
Who invented roller skates?
John Joseph Merlin
What does patent mean?
Legal protection for an invention
Why was instant noodles an important invention?
It provided an easy way to prepare food in times of shortage
When did Laszlo Biro invent the ballpoint pen?
1944
Which invention made storing food in metal containers possible?
Tin can
Who invented the zipper?
Gideon Sundback
What is an invention?
A new creation or device that solves a problem
Why is the ballpoint pen considered revolutionary (involving a complete change)?
It was easier to use and didn’t require refilling as often as fountain pens
In what year did Margaret Knight invent the flat-bottomed paper bag?
1871
What invention made cooking fast and easy by just adding hot water?
Instant noodles
Who invented the ballpoint pen?
Laszlo Biro
What is an emergency?
A sudden, urgent situation that requires immediate action
What impact did general anesthesia have on surgery?
It allowed patients to undergo surgery without feeling pain
When did John Joseph Merlin invent roller skates?
1760s