Explanation

Astronomy is the study of everything in the universe beyond Earth's atmosphere

Galileo Galilei is often referred to as the "father of modern astronomy" and the "father of modern physics".

Explanation

The intensity of an earthquake is measured by the Richter scale.

It quantifies the energy released.

It was developed in 1935.

The Richter scale is used in seismology, the study of earthquakes.

Explanation

Eli Whitney invented the Cotton Gin in 1794 to separate cotton fibers from seeds efficiently.

This invention revolutionized the cotton industry and boosted production.

Explanation

The atomic number was discovered by Henry Moseley in 1910.

Henry Moseley was an English physicist.

Explanation

Calculating the radius of the earth over a thousand years ago required a lot of imagination.

The 10th-century Persian mathematician Abu Rayhan al-Biruni used simple trigonometric results to estimate the radius and circumference of the Earth

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Explanation

Santorio Santorio, an Italian physician, invented the first thermoscope (early form of thermometer) around 1612.

He later developed an electrical thermometer, laying the groundwork for future temperature-measuring devices.

Explanation

Discoverer: Dmitri Mendeleev, a Russian chemist.

- Year: 1869

Explanation

Wilhelm Conrad Rontgen discovered X-rays

He was discovered on 8 November 1895.

He got the Nobel Prize in Physics in 1901.

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Additional questions

The penetrating power of X-rays depends on their frequency

Explanation

Gregor Mendel (from Austria) is called the Father of Genetics for his experiments on pea plants.

He discovered the basic principles of heredity and inheritance through his work.

Explanation

In the early 1950s, the first successful vaccine was created by US physician Jonas Salk.

Salk tested his experimental killed-virus vaccine on himself and his family in 1953

First used Salk vaccine in 1955 ( in activated)

while 

A live attenuated (weakened) oral polio vaccine developed by Dr. Albert Sabin and first used in 1961.

Israel launched a polio vaccine drive after 1988 in April 2022.