Inventions \& Discoveries
🧪 Inventions & Discoveries – SSC CHSL Study Material with Emojis 🏅✨
Here’s an easy-to-understand, emoji-rich summary of all the key inventions and discoveries from your PDF, perfect for SSC CHSL revision12:
🧑🔬 Famous Inventions & Their Inventors
| 🛠️ Invention/Discovery | 👨🔬 Inventor(s) | 📅 Year |
|---|---|---|
| 🧮 Automatic Calculator | Wilhelm Schickard | 1623 |
| ❄️ Air Conditioner | Willis Carrier | 1902 |
| 🌬️ Anemometer | Leon Battista Alberti | 1450 |
| 🎬 Animation | J. Stuart Blackton | — |
| 💣 Atom Bomb | Julius Robert Oppenheimer | 1945 |
| 💊 Aspirin | Dr. Felix Hoffman | 1899 |
| ✈️ Airplane | Wilber & Orville Wright | 1903 |
| 🩹 Adhesive Tape | Richard G. Drew | 1923 |
| 🦠 Bacteria | Antoni van Leeuwenhoek | 1676 |
| 👓 Bifocal Lens | Benjamin Franklin | 1779 |
| 🌡️ Barometer | Evangelista Torricelli | 1643 |
| 🧵 Barbed Wire | Joseph F. Glidden | 1873 |
| 🩸 Blood Group | Karl Landsteiner | 1900s |
| 🖊️ Ball Point Pen | John Loud | — |
| 🚲 Bicycle Tyres | John Boyd Dunlop | 1888 |
| 🚲 Pedal Driven Bicycle | Kirkpatrick Macmillan | 1839 |
| 🧫 Cell | Robert Hooke | 1665 |
| 🧬 Cell Nucleus | Robert Brown | 1831 |
| 🎥 Cine Camera | Wm. Friese-Greene | 1889 |
| ❤️ Circulation of Blood | William Harvey | 1628 |
| 🕰️ Mechanical Clock | Hsing & Ling-Tsan | 1725 |
| 🚂 Diesel Engine | Rudolf Diesel | 1892 |
| 🌡️ Centigrade Scale | Anders Celsius | 1742 |
| 🧪 Chlorine | Carl Wilhelm Scheele | 1774 |
| 💥 Dynamite | Alfred B. Nobel | 1867 |
| 🔋 Electric Battery | Volta | 1800 |
| 🛗 Elevator | Elisha G. Otis | 1852 |
| 🔌 Electric Motor (DC) | Thomas Davenport | 1873 |
| 🧲 Electromagnet | William Sturgeon | 1824 |
| 🖋️ Fountain Pen | Petrache Poenaru | 1827 |
| 🎶 Gramophone | Thomas Edison | 1878 |
| 🧪 Hydrogen | Henry Cavendish | 1766 |
| 🚁 Helicopter | Igor Sikorsky | 1939 |
| 💉 Insulin | Sir Frederick Banting | 1923 |
| ✈️ Jet Engine | Hans Von Ohain | 1936 |
| 🌩️ Lightning Conductor | Benjamin Franklin | 1752 |
| 🚂 Locomotive | George Stephenson | 1804 |
| 💡 Light Bulb | Thomas Edison | 1854 |
| 🏍️ Motorcycle | Gottlieb Daimler | 1885 |
| 🔬 Microscope | Zacharias Janssen | 1590 |
| 🎤 Microphone | Alexander Graham Bell | 1876 |
| 💉 Penicillin | Alexander Fleming | 1928 |
| 🧬 Structure of DNA | James Watson & Francis Crick | 1952 |
| 📞 Telephone | Graham Bell | 1874 |
| 🌐 World Wide Web | Tim Berners-Lee & Robert Cailliau | 1989 |
| 💡 X-ray | Wilhelm Conrad Roentgen | 1895 |
| 🖨️ Xerox Machine | Chester Carlson | 1928 |
💡 Key Scientific Discoveries
- 🦠 Bacteria: Antoni van Leeuwenhoek (1676)
- 🧫 Cell: Robert Hooke (1665)
- 🧬 Cell Nucleus: Robert Brown (1831)
- 🩸 Blood Groups: Karl Landsteiner (1900s)
- 🧪 Hydrogen: Henry Cavendish (1766)
- 🧪 Oxygen: Joseph Priestley (1774)
- 🧪 Chlorine: Carl Wilhelm Scheele (1774)
- 🧬 Structure of DNA: Watson & Crick (1952)
- 💉 Insulin: Frederick Banting (1923)
- 💉 Penicillin: Alexander Fleming (1928)
- 💉 Smallpox Vaccine: Edward Jenner (1796)
- 💉 Polio Vaccine: Jonas Edward Salk
📝 Quick Revision Table
| Emoji | Invention/Discovery | Inventor(s) | Year |
|---|---|---|---|
| 💡 | Light Bulb | Thomas Edison | 1854 |
| 📞 | Telephone | Graham Bell | 1874 |
| 🌐 | World Wide Web | Tim Berners-Lee & Robert Cailliau | 1989 |
| 🧬 | DNA Structure | Watson & Crick | 1952 |
| 💉 | Penicillin | Alexander Fleming | 1928 |
| 🦠 | Bacteria | Leeuwenhoek | 1676 |
| 🧫 | Cell | Robert Hooke | 1665 |
| 💣 | Atom Bomb | Oppenheimer | 1945 |
🏆 Tips for SSC CHSL
- Focus on who invented/discovered what and when.
- Use emojis to help remember inventions and inventors quickly.
- Revise with the table for last-minute prep!
Good luck with your SSC CHSL exam! 🍀
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