🤔 How it works …….. ⁉ A *siren* is a loud noise-making device. Generally used in factories and industries. Fire sirens are often called “fire whistles”, “fire alarms”, or “fire horns”. It consists of an electric motor which turns a Read more
🇮🇳 FACTS ABOUT INDIA🇮🇳 ========================== *Indraprastha* is the old name of Delhi. According to the Great Epic Mahabharata, King Dhritarashtra gave a barren island to Pandavas. The Pandavas made a very beautiful castle and the city and name the place Read more
🤔 How it works …….. ⁉ How ATM card work When you insert our debit or credit card into the ATM, it reads the information encoded on the magnetic strip on the back of the card. … our card is Read more
🇮🇳 FACTS ABOUT INDIA🇮🇳 ========================== *TAMIL NADU* Here *Nadu* a term used by mean land, place, domicile etc. in South Indian languages. **Tamil Nadu** , one of the 28 states of India. *Chennai (Madras)* is it’s capital — Ancient Tamil Read more
🤔 How it works …….. ⁉ How does a fluorescent/ Tube light work? 💡▫️▫️▫️▫️ **Tube** : **Choke/Ballast** : Inductor to generate High voltage and to maintain arc. **Starter** : The small glass tube is filled with neon or argon and Read more
🇮🇳 FACTS ABOUT INDIA🇮🇳 ========================== 🚀🛰️🌎🌔 Indian Space Research Org.: Formation: 15 August 1969; (In 1962 as there was INCOSPAR) ISRO built India’s first satellite, Aryabhata, which was launched by the Soviet Union on 19 April 1975. **India’s Chandrayaan-2** mission Read more
🤔 How it works …….. ⁉ **How Human Biological clock works** ⏰ It is an innate mechanism that controls the physiological activities of an organism which change on a daily, seasonal, yearly, or other regular cycle. “ **Biological clock** ” Read more
🇮🇳 FACTS ABOUT INDIA🇮🇳 ========================== *Ludhiana* is a district in the Indian state of Punjab. … The city stands on the Sutlej River’s old bank, 13 kilometres (8.1 mi) south of its present course. Ludhiana was founded in 1480 by Read more
🤔 How it works …….. ⁉ Honeycombs*🐝🐝 are made from beeswax, a substance created by worker bees. When the temperature is right, worker bees secrete wax scales from special glands in their body. Then they chew the wax with a Read more
🇮🇳 FACTS ABOUT INDIA🇮🇳 ========================== *Early forms of chess originated in India around the 6th century AD* . It known as chaturaṅga, literally four divisions [of the military] – infantry, cavalry, elephants, and chariotry ─ represented by pieces which would Read more