Inventions & Discoveries
🔬 Top 30 Must-Know Inventions & Discoveries
| Invention | Inventor | Year | Country | Memory Hook |
|---|---|---|---|---|
| Steam Engine | James Watt | 1769 | Scotland | Watt → Water vapour |
| Steam Locomotive | George Stephenson | 1814 | England | Stephen → Steam |
| Railway (1st passenger) | George Stephenson | 1825 | England | 25 = 2+5 = 7, 7 letters in Stephen |
| Electric Bulb | Thomas Edison | 1879 | USA | Edison → Electric |
| Telephone | Alexander Graham Bell | 1876 | Scotland | Bell → Bell rings |
| Diesel Engine | Rudolf Diesel | 1897 | Germany | Name itself |
| Airplane | Wright Brothers | 1903 | USA | Wright → Flight |
| X-Rays | Wilhelm Röntgen | 1895 | Germany | Röntgen → Rays |
| Penicillin | Alexander Fleming | 1928 | Scotland | Fleming → Fungus |
| Television | John Logie Baird | 1926 | Scotland | Baird → Box (TV) |
đźš‚ Railway-Specific Inventions
| Component | Inventor | Year | Quick Note |
|---|---|---|---|
| Vacuum Brake | George Westinghouse | 1869 | “West” → Wagons stop |
| Coupler (Janney) | Eli Janney | 1873 | Janney → Joining coaches |
| Continuous Brake | Westinghouse | 1872 | Same brain as vacuum |
| Diesel Locomotive | Hermann Lemp | 1913 | Lemp → Locomotive |
🧠1-Line Mnemonics
- Watt-Steam, Bell-Call, Edison-Glow, Diesel-Oil, Wright-Sky!
- “Scottish Trio” → Steam Engine, Telephone, TV (Watt, Bell, Baird)
🗂️ Quick-Grab Tables
Physics Discoveries
| Discovery | Scientist | Year | Tagline |
|---|---|---|---|
| Gravity | Isaac Newton | 1687 | Apple fall |
| Electromagnetic Induction | Michael Faraday | 1831 | Far → Faraday → Far-electric |
| Electron | J.J. Thomson | 1897 | Thomson → Tiny particle |
| Proton | Ernest Rutherford | 1919 | Rutherford → Real positive |
| Neutron | James Chadwick | 1932 | Chadwick → Center (neutral) |
Chemistry Essentials
| Element/Concept | Discoverer | Year | Trick |
|---|---|---|---|
| Oxygen | Joseph Priestley | 1774 | “Priest” prays in air |
| Periodic Table | Dmitri Mendeleev | 1869 | Mendeleev → Memory table |
| Benzene Structure | August Kekulé | 1865 | Snake biting tail → ring |
⚡ 10 Rapid-Fire MCQs
1. Who invented the steam locomotive?
Answer: George Stephenson2. In which year was the electric bulb invented?
Answer: 18793. Diesel engine is associated with which inventor?
Answer: Rudolf Diesel4. Who discovered X-rays?
Answer: Wilhelm Röntgen5. Penicillin was discovered by __________ in 1928.
Answer: Alexander Fleming6. The vacuum brake was invented by __________.
Answer: George Westinghouse7. Who is credited with the discovery of the electron?
Answer: J.J. Thomson8. Periodic table was first arranged by __________.
Answer: Dmitri Mendeleev9. The neutron was discovered in which year?
Answer: 193210. First passenger railway (Stockton-Darlington) started in __________.
Answer: 1825🎯 Last-Minute Cheat Codes
- 1769 → Watt → Steam → 1-7-6-9 (odd-even-odd-odd) → “odd engine”
- 1895 → Röntgen → X = 2 strokes, 1+8+9+5 = 23 → 23-8 = 15 → ends with 5
BETA
