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How many blades does a Helicopter have?
On September 14, 1939, the VS-300, the world's first practical helicopter, took flight at Stratford, Connecticut.
اس سوال کو وضاحت کے ساتھ پڑھیں
Who is the founder of Microsoft?
Microsoft was founded on April 4, 1975, by Bill Gates and Paul Allen in Albuquerque, New Mexico.
Who invented Telephone?
Alexander Graham Bell is often credited with being the inventor of the telephone since he was awarded the first successful patent.
Which Economist is known as the father of economics?
Smith laid the foundations of classical free market economic theory.
The atmospheric pressure at any place is measured by:
Barometer was invented by Evangelista in 1644.
