🤔 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 fan called the “rotor” or “impeller”, spinning inside a slotted drum called the “stator”. Each time the rotor and stator holes align, a burst of air is forced through. The frequency of these bursts is the pitch of the siren.
😳Why❓❓❓
Why are airplanes usually painted white?
✈️🛫🛬🛩️🚀
The main reason why aircraft are painted white or light colours is to reflect sunlight. Other colours will absorb most of the light. This is crucial as when sunlight is absorbed by an aircraft, this heats up the body of an airplane. Painting a passenger plane white minimises both the heating and potential damage from solar radiation not only when the airplane is in flight, but also when it’s parked on the runway.
When flying at high altitudes, airplanes are completely exposed to various atmospheric conditions. Coloured aircraft tend to fade over time, and thus require repainting to maintain their aesthetic appeal. Aside from the fact that paint adds significant weight to an aircraft –meaning more fuel is burned. White exteriors can enhance aircraft visibility and potentially increase its detection and avoidance by birds strike.
💁🏻♂️ GK TODAY
Central Excise Day 2021 : It is observed on 24th February every year to commemorate the Central Excise and Salt Act which was enacted on 24th February 1944.
===================
BORN TODAY 🐣💐
Jayaram Jayalalithaa (24 February 1948 – 5 December 2016) was an Indian politician and film actress who served as the Chief Minister of Tamil Nadu for over fourteen years between 1991 and 2016.
From 1989 she was the general secretary of the All India Anna Dravida Munnetra Kazhagam (AIADMK),
IDIOMS & PHRASES:
Look before you leap: Take only calculated risks.
*ANTONYM*
Rapid – Slow
*SYNONYMS*
Inconsiderate – Thoughtless
🧬 HEALTH CARE: HOME REMEDIES🩺
Benefits of Cloves:
Cloves are replete with powerful antioxidants that help fight free radical damage and boost our immunity.
The oil obtained from clove is a good source of a compound called eugenol. The strong germicidal properties of clove help combat toothache, sore gums and ulcers.
Note : It is advised that you can consume not more than 2 to 3 cloves a day. Excessive consumption of cloves can cause fluid imbalances and liver damage.
Click here to join:
https://t.me/joinchat/llGA9DGZF9xmMDc1
 |
Ch Narmada Naveen Kumar |
