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Few things you don't know about

Updated: Jan 16, 2020

Few things you don't know about
Few things you don't know about

The world is a peculiar spot; things often don’t happen according to our plan, and unusual incidents are commonly viewed or sometimes few strange and interesting things going on that we just don’t usually know about or we never really care to enquire about. Keeping this in mind, it’s not astounding that there would be surprising realities about everything from pencils paper, to history, to science, and everything in the middle. So here are a few interesting things you must know or we can say a few stuff one must know.


How Hello Word is Invented

Hi / Hello is a welcome or greeting in the English language. It was first recorded in writing from 1833.’Margaret Hello’ was the name of Girlfriend of Graham Bell who Invented the phone


Movie Release on Friday

Have you ever wondered why Friday is the chosen day of the week for all your favorite movies? As It’s the last working day of the week (for most of us), everyone is happier than usual and can finally give shape to those long-pending plans, and add to that, a new movie release. This is quite easy to guess.

But, nowadays it is not just Friday, but sometimes on Wednesday and Thursday as well. But let’s talk about Friday release, as others are the uncommon cases. There are three-four authentic explanations for this and they are:

The firstly Friday is followed by a two day weekend and makes it a perfect time to catch “first-day first show” for many movie lovers. Appropriate for a late-night show as next day is the holiday.

The secondly Hollywood movie was released on Friday, and the same was followed in Bollywood as well. And after that, one of the primary Bollywood motion pictures that got released on Friday was ‘Mughal-E-Azam’ on August 5, 1960.

The next reason is the religious one. As Friday is considered as an auspicious day of Goddess Lakshmi and considered a great day to begin something new. So, this is followed by many directors and movie makers.

Usually, from early days, Fridays are considered as pay-days where many employees who earn salaries weekly get their pay on Fridays. So it was quite natural that they will be relaxed and willing to shell out money for a movie outing over the weekend.



The paper is one of a significant piece of our way of life and through this, we get the data on different occasions occurring in the entire world.

We all know that previously papers were imprinted in black and white colour. Along with the passage of time and improvement, newspapers are additionally advanced these days it comprises of attractive ads; bright photographs, puzzles and many more.

But if you’ve been reading the newspaper for a while now, or even if you’ve just piled up a bundle to give to raddiwala, you must have probably seen that all newspapers have 4 coloured dots/hearts/squares at the base or on the edges.

Those colours are called CMYK (cyan, magenta, yellow and black), the base colours for all colours used in printing.

These four dots are made in CMYK sequence. C = Cyan (means blue in printing) M = Magenta (pink) Y = Yellow (yellow) K = Black (Black)

Any colour can be acquired by adding the correct proportion of these four colours.

To print a picture, the plates of all these colours are laid out on a page separately and lined up in the same spot while printing. This is important to print a full-colour picture accurately. If the images in the newspapers are blurry or hazy, it means that these four-colour plates are overlapping or are not in the same line. That’s why CMYK is also called a registration mark.


Eye Mega Pixel

The resolution or we can say megapixel of the human eye is 576. Stated by researcher and picture taker Dr. Roger Clark.



The shirt loop. You’ve all observed them previously, but probably don’t know the history behind them — or why they were imagined in any case. The answer is pretty fascinating, especially when you consider that most men’s shirts are still made with them today. Who knew that such a small detail would be one of the few things to stand the test of fashion time?

We’ve all observed this shirt circle/loop, but probably never given a thought about it.


Back in the days when there were no closets, these circles were utilized to hang a shirt, without getting wrinkles on it!

As indicated by style history, the loops were initially utilized by East Coast sailors.

One excerpt reads that “sailors would hang their shirts on ship hooks when changing. This detail soon found itself off the ships and onto the streets till today. The trend began with the US made Oxford traditional shirts in the 1960′s.”



You might have seen airplanes flying in the sky many times. Have you ever wondered why they are painted in white colour?

Except for the logo and airline name, the entire exterior of the airplane is painted in a pristine white!

Do you know why?

Strangely, even the most trained pilots are unaware of the logic behind the white-colored exterior of the aircraft. Here are the few reasons that prompted the airlines to adopt the universal white paint for its aircraft!

1) In a similar way that lighter colours dominate our summer closets since they are cooler, aircraft are painted white as light colours reflect sunlight and minimize both the heating and any potential damage from solar radiation, so it keeps the airplane cool.

2) Damaged are easily noticed as the white colour of most aircraft makes it easier for any cracks, dents, oil spills, and other faults to be identified and repaired swiftly.

3) Decorative painting are expensive, Cost can run somewhere from $55K to $300K per plane and 2–3 weeks required for such paint jobs will cause loss of income for that period.

4) More paint = More weight = More fuel = More operating costs. White is a nice, neutral base colour. Using additional colours means extra weight. As Paint adds between 275 and 545 kilograms of weight to an aircraft, Extra weight means more fuel means more operating cost and maintenance.


Few people think the sky is blue because of sunlight reflected off the ocean and once again into the sky. In any case, the sky is blue even in the middle of the countryside, nowhere close to the ocean!

So what’s the genuine reason?

To start with, you should know that the Sun’s light is made up of all the seven colours of the rainbow: Red, Orange, Yellow, Green, Blue, Indigo, and Violet (You know, Roy G. Biv). Each colour of lights travels in different size and frequency.

Why Sky is Blue ?

Generally, all light travels in a somewhat straight line, unless something gets in its way. Like- molecules and gas, in the case of the Earth’s atmosphere.

Why Sky is Blue ?

As Sunlight reaches Earth’s atmosphere it is scattered in all directions by all the gases and particles in the air. The blue light is scattered more than any other colours because it travels in shorter, smaller waves. Thus we see a more blue light in the sky than any other colour.

But when the sky is orange or red during sunset?

Sky during Sunset ?

As the sun gets lower in the sky, its light passes through a greater amount of our air to reach us. So, even more of the blue light is scattered, which enables the reds and yellows to pass straight through to our eyes.


February Month

The first Roman calendar comprised of 10 months instead of 12. To completely match up the schedule with the lunar year, the Roman lord Numa Pompilius added January and February to the first original 10 months.

The previous calendar had had 6 months of 30 days and 4 months of 31, for a sum of 304 days. However, Numa doesn’t want even numbers in his calendar, as Roman superstition at the time held that even numbers were unlucky.

So they analyzed earth revolves around the sun was approximately 365 days it was important to have some months of 30 days and some months of 31 days.

So if we would have had six months of 31 days and six months of 30 days the calendar year would have been of 366 days. (Even number) So it was considered necessary to have made one of the 30 days months a month of 29 days.

At that time February used to be the last month of the year instead of December So, February was cut short to a month of 29 days. But it was realized that earth takes about 365.25 days to take one round of the sun. So Julius Caesar had presented the idea of leap years by making February of 30 days once every four years.

But then July month (named after the name of Julius Caesar) was of 31 days and the August month (named after the name of the Roman emperor Augustus) was of only 30 days, so, the month of

August was converted into 31 days to please the emperor by making February a month of 28 days during non-leap years and of 29 days during the leap years.

This is the reason July and August despite being consecutive months end with 31 days.

Why airplanes are white? 4 coloured dots on newspaper? Certainly, there were few things in this list which we see daily but hardly noticed. After all!! The world is wired place Do you have any weird facts or questions you’d like to share with us — if so, please comment below. And please let me know which one is your favorite facts.

Credit : Article Written by Ruchita Bafna

#facts #douknow #knowledge #interestingfacts #thingstoknow

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