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Who invented Step Reckoner, the calculating machine for addition, subtraction, multiplication, and division?
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Important Questions on Current Affairs
EASY
Who among the following invented Adding Machine?
EASY
Which device is used to test whether an object is carrying charge or not?
EASY
Who among the following invented Electric Motor?
EASY
Who invented first working laser?
EASY
Who among the following scientist discovered the Law of Floatation?
EASY
Who invented the process of photography on metal?
EASY
Who discovered the double-helical structure of DNA?
EASY
The innovative concept of using sunshine to keep houses warm in freezing winters is called ______
EASY
Where was paper invented?
EASY
Punched card is also called as _____.
MEDIUM
In April , scientists in _____ produced the world's first printed heart using human tissue
HARD
Who presented that all the plants and animals are composed of cells and that the cell is the basic unit of life?
EASY
Who among the following scientists invented the Cotton Gin?
EASY
Who discovered the nucleus for the first time in cell?
EASY
Christiaan Barnard is famous for _____.
EASY
Who discovered electromagnetism?
EASY
Whose invention led to the development of polio vaccine?
EASY
In , electricity became viable for use in technology when ______ created the electric dynamo.
HARD
Scientists have created world's shortest laser pulse _____ with a duration of just attoseconds.
MEDIUM
The test for diagnosing HIV is:
1. Pap Smear
2. ELISA
3. DND
4. Mantoux
