What item, originally called the ‘Whirlwind’, was invented by Ives McGaffey in 1869?
Physical Research Laboratory was founded by ____.
The first gasoline-run car engine was developed by
X-Rays, which are now used on a day to day basis for diagnosis in medicine, was discovered by?
Which dynasty had its capital at Chittorgarh?
Who discovered radioactivity?
The first large scale electrical air conditioning was invented and used in 1902 by
Which of the following was the first antibiotic discovered by Alexander Fleming in 1928?
Aaton Van Leewen Hock is famous for the discovery of ___.
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