Interesting Facts – 17 December 2025

Drink a glass of water

😳WHY❓❓❓
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What are phosphenes?
You may have experienced this: You have your eyes closed, but you can still somehow see a color or a flash of light.

Closed-eye hallucinations are related to a scientific process called phosphenes. These occur as a result of the constant activity between neurons in the brain and your vision. Even when your eyes are closed, you can experience phosphenes. At rest, your retina still continues to produce these electrical charges.
Closed eye visualisation or photopsias or phosphenes is an entoptic phenomenon in which bursts of bright colours appear all across field of vision when eyes are closed or when one is in a dark room. Phosphenes come in 15 categories such as triangles, stars, spirals, spots, amorphous blobs, etc.

💁🏻‍♂‍ GK TODAY 
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 National Reptile (INDIA) : King Cobra
National Heritage Animal : Indian Elephant

National Aquatic Animal : Ganges River Dolphin

National River Ganga

National Calendar : Saka calendar
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BORN TODAY 🐣💐
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Sundari Mohan Das was the founder principal of the Calcutta National Medical College.
He was born in Sylhet on 17 December 1857.

He was a Indian independence activist, doctor and social worker.
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 IDIOMS & PHRASES 
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 Like two peas in a pod They’re always together
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ANTONYM
Expand × Contract

SYNONYMS 
Formerly : Previously

🧬 *HEALTH CARE: HOME REMEDIES*🩺

Drink a glass of water* first thing in the morning
 it’s best to start your day by re-hydrating with a full glass of water. Hydrating first thing in the morning helps to aid digestion, enhance skin health and boost energy.

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