Explanation

George Stephenson is credited with inventing the first successful railway engine, known as the Locomotion No. 1, in 1814.

His later model, The Rocket, introduced in 1829, 

Explanation

Omer-Khayam was born in Iran in 1048 AD.

Omer-Khayam was a poet, Mathematician & Astronomer. 

Omer-Khayam introduced the modern Solar Hijri calendar, the Jalali calendar.

Place of burial: Tomb of Omar Khayyam, Iran

Main interests:

Mathematics (medieval Islamic); astronomy; Persian philosophy; Persian poetry

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RY 4-12-2022

Explanation

Muḥammad ibn Mūsā al-Khwārizmī was a Persian polymath who produced vastly influential works in mathematics, astronomy, and geography.

Around 820 CE he was appointed as the astronomer and head of the library of the House of Wisdom in Baghdad.

Explanation

Benjamin Franklin invented the lightning rod, a device used to protect buildings from lightning strikes.

He made this invention in 1752 as part of his experiments with electricity.

Explanation

Willem Einthoven was a Dutch medical doctor and physiologist.

He is known as the father of electrocardiography

He invented the first practical electrocardiograph (ECG or EKG)

Explanation

Malaria is caused by Plasmodium parasites.

The parasites are spread to people through the bites of infected female Anopheles mosquitoes, called "malaria vectors.

Explanation

Alexander Graham Bell is credited with inventing the first practical telephone in 1876.

Graham Bell made the first-ever telephone call to his partner, Thomas Watson.

Explanation

Brahmagupta, an astronomer and mathematician from India used zero in mathematical operations like addition and subtraction.

Aryabhatta introduced zero in 5th century.

Brahmagupta introduced zero in calculations in around 628 AD.

Explanation

Jack Ma is the founder of Alibaba, a Chinese e-commerce giant he established in 1999.

Under his leadership, Alibaba became one of the world’s largest online retail platforms.

Explanation

• Edward Teller is often referred to as the “father of the hydrogen bomb.”
•  After the Soviet Union detonated its first atomic bomb in 1949, Edward Teller worked to convince President Truman to develop a crash program for the hydrogen bomb, which he believed was feasible.
• Edward Teller was a Hungarian-American theoretical physicist
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