Who invented the thermos flask?
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Who Invented the 3-D printer?
Who discovered the colour photography?
Who Invented FM Radio?
Who among the following is NOT a famous dancer of Bharatanatyam?
The Arabic work of al-Biruni that gave an account of the subcontinent is called __________.
Who wrote the book -"The Argumentative Indian"?
If the diameter of a sphere is 14 cm, then what is the surface area (in sq.cm) of the sphere?