😳 WHY? ❓❓
Why do birds such as geese and cranes fly in a V formation?
When a large bird flaps its wings, air spills off the wingtips and swirls upwards behind it. A bird flying just behind and to one side can ride on this rising air, called upwash, so it needs to flap less hard to stay aloft. By arranging themselves in a V, every bird except the leader gets this free lift, which helps the flock save energy on long migrations. Studies of migrating ibises have shown that birds even time their wingbeats to catch the upwash. The tiring front position is taken in turns, and the V shape also lets each bird see the others clearly and stay together.
📚 GK TODAY
12 November — Important Days
Public Service Broadcasting Day: Observed in India on 12 November to mark Mahatma Gandhi’s only visit to the studio of All India Radio in Delhi on 12 November 1947, when he spoke to refugees displaced by Partition who were staying in a camp at Kurukshetra.
* World Pneumonia Day
Observed every year on 12 November since 2009 to raise awareness about pneumonia, a leading infectious cause of death among children under five, and to promote prevention through vaccination, clean air, good nutrition and timely treatment.
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🐣💐 BORN TODAY
Dr Salim Ali (born 12 November 1896)
Salim Moizuddin Abdul Ali was born in Bombay and is known as the “Birdman of India”. He carried out systematic bird surveys across the country, wrote the popular ‘The Book of Indian Birds’ (1941) and, with S. Dillon Ripley, the ten-volume ‘Handbook of the Birds of India and Pakistan’. He was closely associated with the Bombay Natural History Society and helped save the Bharatpur bird sanctuary and Kerala’s Silent Valley. He received the Padma Bhushan (1958) and Padma Vibhushan (1976), and died on 20 June 1987. His birth anniversary is observed as National Birdwatching Day.
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🙏 IDIOMS & PHRASES
“Birds of a feather flock together”
Meaning: People with similar interests, tastes or character tend to spend time together.
Example: The young chess players in Budapest spent their free time together — birds of a feather flock together.
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📖 SYNONYMS & ANTONYMS
* Rationalise: Streamline × Complicate
* Resilient: Sturdy × Fragile
* Clandestine: Secret × Open
🧬 HEALTH CARE: HEALTHY HABITS 🩺
Protecting ourselves from pneumonia this winter (World Pneumonia Day)
💉 Keep children’s vaccinations up to date, including the pneumococcal (PCV), Hib and measles vaccines given under the national immunisation programme.
🤱 Exclusive breastfeeding for the first six months and good nutrition build a child’s natural defences against lung infections.
🧼 Wash hands with soap often, cover coughs and sneezes, and avoid smoke from tobacco and indoor cooking fires.
🌫️ On smoggy days, limit outdoor exertion and keep the elderly and those with asthma or lung disease indoors.
🩺 See a doctor promptly for fever with cough, fast or difficult breathing or chest pain — early treatment saves lives.
Note: These are general wellness suggestions and do not replace professional medical advice.
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Ms. Pooja, |
