Education- Interesting facts 18 May 2022

How a crayon is made

🤔 How it works ……..

How a crayon is made

A crayon (or wax pastel) is a stick of pigmented wax used for writing or drawing. Wax crayons differ from pastels, in which the pigment is mixed with a dry binder such as gum arabic, and from oil pastels, where the binder is a mixture of wax and oil.

The two basic ingredients for a crayon are:

1. Pigment

2. Paraffin wax, stored in heated 17,000 gallon tanks

The mixture is heated until it melts into a liquid. Crayons melt at 105 degrees Fahrenheit (40 degrees Celsius). The mixture is heated to 190 F (82 C). The liquid is poured into a preheated mold full of hundreds of crayon-shaped holes. Cool water (55 F, 13 C) is used to cool the mold, allowing the crayon to be made in 3 to 9 minutes.

A single mold makes 1,200 crayons at a time, weighing a total of about 40 pounds. The operator uses hydraulic pressure to eject the crayons from the mold. Earlier mold designs used a hand crank to push up the crayons.

😳Why❓❓❓

Why we get dreams while sleeping?

Dreams are hallucinations that occur during certain stages of sleep. They’re strongest during REM sleep, or the rapid eye movement stage, when you may be less likely to recall your dream. Much is known about the role of sleep in regulating our metabolism, blood pressure, brain function, and other aspects of health. A dream is a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep.

Adults and babies alike dream for around two hours per night. During a typical lifetime, people spend an average of six years dreaming. The average person has three to five dreams per night, and some may have up to seven.

People who are blind from birth do not have visual dreams. Their dream contents are related to other senses like hearing, touch, smell and taste, whichever are present since birth

💁🏻‍♂️ GK TODAY

18 May – International Museum Day
International Museum Day is observed on 18 May every year to raise awareness about the museum and its role in society. The International Council of Museums (ICOM) created International Museum Day in 1977. The organisation suggested a proper theme every year which may include globalisation, bridging cultural gaps and care for the environment.

18 May – World AIDS Vaccine Day

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BORN TODAY 🐣💐

Haradanahalli Doddegowda Deve Gowda (born 18 May 1933) is an Indian politician who is the state president of Janata Dal (Secular), Karnataka and who was the 11th Prime Minister of India from 1 June 1996 to 21 April 1997.

He was previously the 14th Chief Minister of Karnataka from 1994 to 1996.

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Give away a secret
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Generous x Mean, Greedy

*SYNONYMS*

unbiased ~ impartial

🧬 HEALTH CARE: HOME REMEDIES🩺

Cardamom* may help lower blood pressure, most likely due to its antioxidant and diuretic properties.

Cardamom is often used to treat badn breath and is a component of some chewing gums. This is because cardamom might be able to kill common mouth bacteria and prevent cavities.

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