Question 1 :
When were blue jeans invented?
The first blue jeans were invented by tailor Levi Strauss, who invented tougher working pants for the miners of the California Gold Rush.
Question 2 :
Who invented Electric Generator?
Question 3 :
What device for new parents did Ann Moore invent in 1969?
Ann got the idea for the Snugli infant carrier from the traditional African baby carriers she observed while a volunteer for the Peace Corps in Africa.
Question 4 :
In which decade was the transistor invented?
On December 23, 1947, William Shockley, Walter Brattain and John Bardeen, of Bell Labs, announced their discovery of the point-contact germanium transistor to management.
Question 5 :
What Igor Sikorsky invented?
Invented in 1939.