Albert Einstein PDF

Albert Einstein is a famous theoretical physicist scientist,who is best known for the developing “The Theory Of Relativity” and “Photoelectric …

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Neil deGrasse Tyson Biography PDF

Neil deGrasse Tyson is a American astronomer, astrophysicist, cosmologist, author, and science communicator. He popularized science with his books & …

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Charles Messier Biography PDF

Charles Messier was a French astronomer,who was the 1st to compile a systematic catalog of Nebulae and Star Clusters. Charles …

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WOMEN IN AVIATION – PDF

Astronaut Sally Ride knew the significance of her first Space Shuttle mission in 1983.  To the fascinated nation, the most …

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