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Question 1:

Who invented the telephone and in which year?

Answer: Alexander Graham Bell – 1876

Key Fact: Alexander Graham Bell patented the telephone on March 7, 1876. It was one of the most important inventions of the 19th century and revolutionized communication.

Question 2:

Who invented the light bulb and in which year?

Answer: Thomas Edison – 1879

Key Fact: Thomas Edison invented the practical incandescent light bulb in 1879. He is known as the "Wizard of Menlo Park" and held over 1,000 patents.

Question 3:

Who invented the aeroplane and in which year?

Answer: Wright Brothers (Orville and Wilbur) – 1903

Key Fact: The Wright Brothers made the first successful powered flight on December 17, 1903, at Kitty Hawk, North Carolina, USA.

Question 4:

Who discovered penicillin and in which year?

Answer: Alexander Fleming – 1928

Key Fact: Alexander Fleming discovered penicillin, the world's first antibiotic, in 1928. He won the Nobel Prize in Physiology or Medicine in 1945.

Question 5:

Who discovered X-Rays and in which year?

Answer: Wilhelm Roentgen – 1895

Key Fact: Wilhelm Roentgen discovered X-Rays in 1895 and won the first Nobel Prize in Physics in 1901. X-Rays are widely used in medical imaging.

Question 6:

Who is considered the father of the computer and when did he design it?

Answer: Charles Babbage – Designed the Analytical Engine in 1837

Key Fact: Charles Babbage is known as the "Father of the Computer." He designed the Analytical Engine, which had many features of modern computers. Ada Lovelace is considered the first computer programmer.

Question 7:

Who invented the printing press and in which year?

Answer: Johannes Gutenberg – 1440

Key Fact: Gutenberg invented the movable-type printing press around 1440. His Gutenberg Bible was the first major book printed in Europe. This invention revolutionized knowledge dissemination.

Question 8:

Who invented the radio and in which year?

Answer: Guglielmo Marconi – 1895

Key Fact: Marconi is known for his work on long-distance radio transmission. He invented the radio in 1895 and won the Nobel Prize in Physics in 1909.

Question 9:

Who discovered the structure of DNA and in which year?

Answer: James Watson and Francis Crick – 1953

Key Fact: Watson and Crick proposed the double helix structure of DNA in 1953. They won the Nobel Prize in Physiology or Medicine in 1962. Rosalind Franklin's X-ray images were crucial to the discovery.

Question 10:

Who invented the concept of zero and what is its significance?

Answer: Indian Mathematicians – Ancient India

Key Fact: The concept of zero (0) was developed in ancient India. It was later introduced to the Arab world and then to Europe. Zero is considered one of the most important mathematical inventions.

Question 11:

Who invented the internet and when was it developed?

Answer: Vint Cerf and Bob Kahn – 1983 (ARPANET protocol)

Key Fact: Vint Cerf and Bob Kahn are known as the "Fathers of the Internet." They developed the TCP/IP protocol in 1983, which is the foundation of the modern internet.

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