😳 WHY? ❓❓
Why do we see lightning before we hear thunder?
Lightning and thunder happen at the same moment, but they travel to us at very different speeds. Light moves at about 3 lakh km per second, so the flash reaches our eyes almost instantly, while sound travels through air at only about 343 metres per second. Thunder is the sound of air heated by the lightning bolt to around 30,000°C, which expands explosively. That is why we hear the rumble later — counting the seconds between flash and sound and dividing by three gives a rough distance to the storm in kilometres.
📚 GK TODAY
30 October — Important Days
World Thrift Day (India): Observed in India on 30 October, a day before the global World Savings Day of 31 October, it encourages people to save regularly and spend wisely. The day traces back to the International Savings Bank Congress held in Milan, Italy, in 1924.
* Muthuramalinga Thevar Jayanthi
Pasumpon U. Muthuramalinga Thevar, freedom fighter, parliamentarian and a close associate of Netaji Subhas Chandra Bose in the Forward Bloc, was born on 30 October 1908 at Pasumpon in Tamil Nadu and died on the same date in 1963. The day is observed as Thevar Jayanthi and Guru Puja.
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🐣💐 BORN TODAY
Homi J. Bhabha (born 30 October 1909)
Born in Bombay (now Mumbai), the physicist is known as the father of India’s nuclear programme. He founded the Tata Institute of Fundamental Research in 1945, became the first chairman of the Atomic Energy Commission in 1948 and set up the atomic energy establishment at Trombay, renamed Bhabha Atomic Research Centre after his death in an air crash on Mont Blanc in 1966.
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🙏 IDIOMS & PHRASES
“Rise to the occasion”
Meaning: To perform well and meet the demands of a difficult or important situation.
Example: Manisha rose to the occasion in the semifinal and pinned her opponent to reach the world final.
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📖 SYNONYMS & ANTONYMS
* Prudent: Wise × Reckless
* Vivid: Bright × Dull
* Meticulous: Careful × Careless
🧬 HEALTH CARE: HEALTHY HABITS 🩺
Staying well as temperatures dip
🧥 Dress in layers and keep the head, hands and feet warm, especially for children and the elderly.
🍵 Drink warm water, soups and herbal tea, as people tend to drink less water in cold weather.
🥕 Eat seasonal fruits and vegetables rich in vitamin C to support immunity.
🚶 Keep moving with light exercise or a walk in the afternoon sun to keep joints flexible.
🔥 Never use coal or wood heaters in a closed room, as they can release deadly carbon monoxide.
Note: These are general wellness suggestions and do not replace professional medical advice.
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