Explanation

The statement "To every action there is always an equal and opposite reaction" is Newton's Third Law of Motion.

This law states that for every interaction between two objects, a pair of forces is produced—these forces are equal in magnitude and opposite in direction, acting on the interacting objects. 

Explanation

- Discovered by: Henry Cavendish  

- Year: 1766  

Symbol: H

Atomic mass: 1.00784 u

Atomic number: 1

Named by: Antoine Lavoisier (1783)

Explanation

John Dalton is considered the 'Father of Modern Atomic Theory.

He raised the atomic theory that acted as an explanation of the following two laws.

Law of conservation of mass – According to the law, mass can neither be destroyed nor created in any chemical reaction.

Explanation

Radioactivity was discovered by Henri Becquerel in 1896.

They discovered radioactivity proving that the uranium emitted radiation without an external source of energy such as the Sun

Marie Curie with her husband Pierre Curie, coined the term radioactivity.

In 1903, Henry Becquerel shared the Nobel Prize for Physics with Pierre and Marie Curie

Ernest Rutherford did many experiments studying the properties of radioactive decay (alpha, beta, and gamma)

Explanation

Marconi invented Radio.

Radio was invented in 1895.

Guglielmo Marconi was an Italian inventor.

Explanation

Alfred Nobel was a chemist from Sweden. 

Dynamite was invented by Alfred Nobel in the 1860s.

He is also the founder of the Nobel Prize

He also invented Nitro-glycerine in 1875.

Alfred Nobel  Born: October 21, 1833, Stockholm, Sweden

Alfred Nobel  Died: on December 10, 1896, in Sanremo, Italy

Alfred Nobel Full name: Alfred Bernhard Nobel

Additional Information

The first Noble Prize was awarded on 10th December 1901

The first Noble Prize was awarded in Stockholm, Sweden.

Explanation

The Wright Brothers, Orville and Wilbur, invented and flew the first successful airplane.

This historic flight took place on December 17, 1903, in Kitty Hawk, North Carolina.

Explanation

Thomas Alva Edison was an American inventor.

He developed many devices: 

• Electric power generation 
•  Mass communication
•  Sound recording
• Motion pictures.

Explanation

Robert Peary became the first person to reach the North Pole in 1909.

Robert Peary was an American explorer. 

The North Pole of the Earth is located in Arctic Ocean.

Distance from south to North Pole is called Longitude.

Explanation

J.J. Thomson discovered the electron in 1897 through his experiments with cathode rays.

The proton was discovered by Ernest Rutherford.

The neutron was discovered by James Chadwick.