SSC CGL Exam > SSC CGL Videos > SSC CGL Tier 2 - Study Material, Online Tests, Previous Year > Important Inventions & Discoveries
Important Inventions & Discoveries Video Lecture | SSC CGL Tier 2 - Study Material, Online Tests, Previous Year
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FAQs on Important Inventions & Discoveries Video Lecture - SSC CGL Tier 2 - Study Material, Online Tests, Previous Year
| 1. What are some important inventions and discoveries? |  |
Ans. Some important inventions and discoveries include the telephone, electricity, the internet, penicillin, and the wheel. These inventions have had a significant impact on human civilization and have revolutionized various aspects of our lives.
| 2. Who invented the telephone? | |
Ans. The telephone was invented by Alexander Graham Bell in 1876. His invention revolutionized communication by allowing people to talk to each other over long distances, laying the foundation for modern telecommunications systems.
| 3. How did electricity change the world? | |
Ans. Electricity changed the world in numerous ways. It powered inventions like the light bulb, electric appliances, and machines, leading to advancements in industries, transportation, and communication. It also made it possible to distribute power to homes and businesses, improving quality of life and productivity.
| 4. What is the significance of the internet? | |
Ans. The internet has transformed the way we communicate, gather information, conduct business, and access entertainment. It has connected people across the globe, enabling instant communication and facilitating the exchange of knowledge and ideas. The internet has also revolutionized industries like e-commerce, education, and social media.
| 5. Who discovered penicillin? | |
Ans. Penicillin, the world's first antibiotic, was discovered by Alexander Fleming in 1928. His chance observation of mold inhibiting bacterial growth led to the development of a life-saving drug that revolutionized medicine and has saved countless lives from bacterial infections.
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