Explanation

List of Countries Landed on the Moon

Explanation

Germany was the first country to introduce a hydrogen-powered train.

The train, called the Alstom Coradia iLint.

It was developed by French company Alstom.

It has a record range of 1,175 kilometers without refueling.

China became the first country in Asia.

It is the second in the world to launch hydrogen-powered trains.

Chinese trains have a top speed of 160 kilometers per hour.

It can run for 600 kilometers without refueling.

Explanation

Theodolite is a precision optical instrument for measuring angles between designated visible points in the horizontal and vertical planes.

Theodolite was invented by Leonard Digges (United Kingdom)

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Explanation

On June 2, 2022,  A US medical team reconstructed a human ear using the patient's own tissue to create a 3D bio-implant. 

Explanation

Penicillin was discovered by Alexander Flaming In 1928

Penicillin was the first true antibiotic

The first patient Albert Alexander, a 43-year-old policeman, was treated with penicillin on 12 February 1941

Alexander Flaming determined that penicillin had an antibacterial effect and published his findings in 1929 

Explanation

The Uncertainty Principle was given by Werner Heisenberg.

Heisenberg was a German physicist.

Heisenberg gave The Uncertainty Principle in 1927.

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Explanation

  Ṭariq ibn Ziyad was the Berber general who led the Muslim conquest of Spain in 711–718 AD

He initiated the Muslim conquest of the Iberian Peninsula (present-day Spain and Portugal) against the Visigothic Kingdom

He was an Umayyad commander

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

ND10-3-2023

Explanation

Google, a US multinational technology company

Google is a type of search engine operating since 1997

Google was founded in the year: September 4, 1998

The Headquarters of Google is located in the city: of California

Sergen Brin & Larry Page is the founder of Google

Sergey Brin is the real owner of Google

Parent organization: Alphabet Inc.

ND07-3-2023

Explanation

The Adventures of Tom Sawyer is a novel written by Mark Twain, 

The book was first published in 1876

It is a classic of American literature, depicting the adventures of a young boy named Tom Sawyer