How do zips work?
Zips have two rows of teeth. These are joined together by a sliding key. The key locks the teeth together or pulls them apart. The zip fastener was first invented by an American, Whitcomb Judson, in the 1890s. But the interlocking zip fastener was invented by Gideon Sundback in 1913.
Related posts:
What is a UFO? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 St...
General Knowledge
Are lizards poisonous? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge
Were the Celts able to read and write? Complete General Knowledge Question and Answer for Class 6, 7...
General Knowledge
GK Question "What Do You Know About Fossils?" general knowledge book English 2021 current affairs qu...
General Knowledge
GK Question "People Have Been Last Names, For How Long?" general knowledge book English 2021 current...
General Knowledge
GK Question "Tell Me About Milky Way" general knowledge book English 2021 current affairs quiz and a...
General Knowledge
Do you know "Excavation site at PuranaQila".
General Knowledge
What is immunity? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
GK Question "What Makes The Money Valuable?" general knowledge book English 2021 current affairs qui...
General Knowledge
Why do plants make starch? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
What is inflation? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 1...
General Knowledge
How does a compact disc work? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 1...
General Knowledge
When did dinosaurs inhabit earth? Complete General Knowledge Question and Answer for Class 6, 7, 8, ...
General Knowledge
What is hoof-and-mouth disease? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9,...
General Knowledge
What is a metal? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 ...
General Knowledge
What is a toucan? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
What causes the 'pop' in soda pop? Complete General Knowledge Question and Answer for Class 6, 7, 8,...
General Knowledge
Why does hair come in different colours? Complete General Knowledge Question and Answer for Class 6,...
General Knowledge
GK Question "The Matches Was Invented By Whom?" general knowledge book English 2021 current affairs ...
General Knowledge
Were there surgeries in ancient times? Complete General Knowledge Question and Answer for Class 6, 7...
General Knowledge