Explanation

• Inventor: Tim Berners-Lee
• Collaborator: Robert Cailliau
• Year of invention: 1989 August
• Organization: CERN (European physics lab, Switzerland)
• First website: 1991 (public release)
• WWWW stands for World-Wide Web Worm.

Last updated 06 Nov 2026 by NA

Explanation

• Isaac Newton and Gottfried Wilhelm Leibniz independently developed calculus in the 17th century.
• Isaac Newton: Developed the method of fluxions.
• Gottfried Wilhelm Leibniz: Developed much of the notation used in calculus today.

Last updated by NA on 06-11-2026

Explanation

• Walter Hunt patented the safety pin on April 10, 1849.
• He sold the patent rights for $400, which is approximately $14,000 today.

Last updated by NA on 06-11-2026

Explanation

• Alexander Graham Bell is credited as the inventor of the telephone.
• He was awarded the first successful patent for it.
• The telephone was invented in 1876.
• Bell made the first-ever telephone call to his assistant Thomas Watson.

Last updated by NA on 06-11-2026

Explanation

Albert Einstein 

- Profession: Theoretical physicist.

- Century: One of the most influential physicists of the 20th century.

- 1905: Published four landmark scientific papers.

- Nobel Prize: Awarded for his explanation of the photoelectric effect, not the Special Theory of Relativity.

Explanation

Cape of Good Hope 

• - Explorer: Bartolomeu Dias (Portuguese).
• - Year: 1488.
• - First European: To round the southern tip of Africa.
• - Original Name: Cape of Storms (Cabo das Tormentas).
• - Renamed By: King John II of Portugal.
• - New Name: Cape of Good Hope (Cabo de Boa Esperança).
• - Location: Cape Peninsula, Western Cape, South Africa.

Last updated by NA on 05-11-2026

Explanation

• Christopher Columbus was Italian, born in Genoa in 1451
• He discovered America in 1492.
• He completed four Spanish-sponsored voyages across the Atlantic Ocean
• He was the 1st Governor of the Indies from 1492–1499
• Died: 20 May 1506 (aged 54), Valladolid, Castile

Last updated by NA on 05-11-2026

Explanation

• Invented by: Dennis Ritchie.
• First appeared: 1972.
• Developed at: Bell Laboratories, USA.
• Company: AT&T.
• Type: General-purpose programming language.
• Co-developer of: UNIX.
• Known as: Father of C Language.

Last updated by NA on 05-11-2026

Explanation

• Wilhelm Conrad Rontgen discovered X-rays
• He was discovered on 8 November 1895.
• He got the Nobel Prize in Physics in 1901.

Additional questions

• The penetrating power of X-rays depends on their frequency

Last updated by NA on 05-11-2026

Explanation

• Inventors: Montgolfier brothers (Joseph-Michel and Jacques-Étienne).
• First public demonstration: 4 June 1783, Annonay, France.
• First passenger flight: 1783, near Paris.
• Known as: Pioneers of human flight.

Last updated by NA on 04-11-2026