Explanation

Portable timekeeping device of great accuracy, particularly one used for determining longitude at sea

Explanation

Mendeleev: Chemist/inventor(from 

Mendeleev discovered law: 1869

Explanation

A galvanometer is an instrument that can detect and measure small amounts of current in an electrical circuit

Explanation

Sputnik V vaccine is made by Russia

Explanation

In June 2022, researchers discovered largest bacteria on the Caribbean island of Guadeloupe and is big enough to be seen with the human eye

Explanation

Karl  Benz was a German engine designer and automobile engineer.

His Benz Patent Motorcar from 1885 is considered the first practical automobile.

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 I II and III

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The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644.

Explanation

Martin Cooper built the first mobile cell phone and made the first cell phone call.

Martin Cooper is widely regarded as the father of the cellular phone.

On April 3, 1973, Martin Cooper made the first ever cellphone call on the streets of New York.

Martin Cooper's invention, a brick-sized device, became the first cellphone available to the general public.

ND28-4-2023

Explanation

In 1912, Casimir Funk originally coined the term "vitamine"