Inventions — Set 6
Physics · आविष्कार · Questions 51–60 of 60
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1
Who invented the thermometer scale where water freezes at 0 degrees and boils at 100 degrees?
2
The invention of the microscope is generally attributed to which inventor?
3
Which inventor developed the first practical submarine, the 'Turtle'?
4
Who invented the fountain pen with an internal ink reservoir?
5
The invention of the ballpoint pen is credited to?
6
Who invented the first practical sewing machine?
7
The invention of the lead-acid battery is credited to?
8
Who invented the first functional electric motor?
9
The invention of the cotton gin, which cleaned cotton fiber from seeds, was by?
10
Who is credited with the invention of the first practical air conditioner?