Explanation

Stainless steel is a alloys that contain a minimum of approximately 11% chromium, a composition that prevents the iron from rusting and also provides heat-resistant properties.

Explanation

Sir Isaac Newton was an English mathematician, physicist, astronomer, alchemist, theologian,

Author widely recognised as one of the greatest mathematicians

And physicists of all time and among the most influential scientists. 

Explanation

A light year is the distance light travels in one year — about 9.46 trillion kilometers.

It is commonly used to measure vast distances between stars and galaxies.

Astronomers use an effect called parallax to measure distances to nearby stars.

Parallax is the apparent displacement of an object because of a change in the observer's point of view.

Explanation

Thomas Alva Edison was an American inventor.

He developed many devices: 

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

Explanation

An optical fiber is a flexible,

transparent fiber made by drawing glass  or plastic

To a diameter slightly thicker than that of a human hair.

Explanation

Carbon dioxide is a colorless and non-flammable gas at normal temperature and pressure.

The bubbles in fizzy drinks are caused by carbon dioxide (CO2).

Soft drink manufacturers add fizz by dissolving carbon dioxide into the water at high pressures.

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Explanation

Jabir Ibn Hayyan, commonly known as the 'Father of Arab Chemistry',

He was born in Persia, which is now known as Iran, in 721 AD

Notable ideas:

• Use of organic substances in chemistry
• Sulfur-mercury theory of metals
• Science of the balance
• Science of artificial generation

Explanation

Radon is a gas that can be accumulated in poorly ventilated buildings.

Explanation

The process of applying a zinc coating to iron or steel to prevent rusting is called galvanizing.

This helps protect the metal from corrosion.

Explanation

Diamond is an allotropic form of carbon.

Carbon is capable of forming many allotropes, which are structurally different forms of the same element, due to its valency.

Some of the well-known forms of carbon include:

• Diamond
• Graphite
• Graphene
• Lonsdaleite (hexagonal diamond)
• Graphenylene
• Carbophene
• AA'-graphite
• Diamane
• Amorphous carbon
• Nanocarbons
• Glassy carbon
• Carbon nanofoam
• Carbide-derived carbon
• Linear acetylenic carbon
• Cyclocarbons