Explanation

• The atmospheric pressure at any place is measured by a Barometer.
• The barometer was invented by Evangelista in 1644.

Last verified on 10-03-2026

Explanation

• William Harvey discovered the circulation of blood in 1628.
• He was the first physician to completely describe systemic blood circulation.
• Famous book: De Motu Cordis (On the Motion of the Heart and Blood) (1628)
• He is known as the Father of Circulation of Blood.

Additional information:

• Birth: 1578
• Death: 1657

Last verified on 23-06-2026

Explanation

• Name: Waldemar Haffkine
• Year: 1892
• Vaccine: Cholera vaccine (first effective form)
• Place of work: India (British India)
• Field: Microbiology / Immunology

Last verified on 23-06-2026

Explanation

• William Harvey discovered the circulation of blood.
• He was the first physician to completely describe systemic blood circulation.
• Famous book: De Motu Cordis (On the Motion of the Heart and Blood) (1628)
• He is known as the Father of Circulation of Blood.

Additional information:

• Birth: 1578
• Death: 1657

Last verified on 23-06-2026

Explanation

• Neon gas was discovered by William Ramsay and Morris Travers in 1898.
• It was found during the study of liquefied air and noble gases.
• Neon is a noble gas.
• It is chemically inert (does not react easily).
• It is famous for producing bright reddish-orange light in neon signs.
• It is present in very small amounts in Earth’s atmosphere.

Last verified on 21-06-2026