Washing of Lions in the Tower

In 1860 the London aristocracy sent invitations to "the annual ceremony of washing the white lions", which will be held in the Tower at 11 o'clock in the morning. It's quite a lot of people festively dressed, but completely forgotten about one particular item. They forgot that it was April 1...Fool's day

Permited vs Prohibited (USA vs USSR)

In the "Notebooks" Sergei Dovlatov formulated the distinction between the USSR and
U.S. with a well-known aphorism of the relationship between the permitted and
prohibited. this aphorism sounds for the USSR and as for the U.S. like: All that is not prohibited is permitted(USA) and All that is not permitted is prohibited(USSR)

Why classic Mercedes color is metallic?

In the far 30th, in one of racing competitions, the Mercedes team had problems with the allowable weight machine. Machine weight exceeded allowable by about 1 kg. However, the team quickly found out how to salve the problem, and even won this competition. This event and original solution still reminds symbols racing Mercedes.
They removed the RED paint from the car.
And till our days, the classic color of Mercedes - is Metallic.

During 76 years, astrologists have been hiding from us that Pluto is not a planet

1915 – Pluto is photographed for the first time but is not recognized as a planet.
Years after, in 1930 Clyde W. Tombaugh, considered Pluto as the ninth Planet of the Solar System. At that time he didn't know that actually it is not.
In 1970 after discovering the minor planet 2060 Chiron, scientists considered that maybe Pluto is not a planet.
Why didn't they say anything? Just because, Astrologists asked scientists to keep silence. For years they were creating their astrological calendars, where they described how birth under different planets is possible to change a human's life. They knew that people whom they cheated for such a long time, would protest, and will never believe them any more.
This lasted till 2006, when the International Astronomical Union (IAU)defined the term "planet" for the first time. and Pluto was reclassified like a "dwarf planet"
Thus the Oxford dictionary got a new word "plutoed", which means "to demote or devalue someone or something"

Happy Pi day! 3.14

Pi represents the relationship between a circle’s diameter (its width) and its circumference (the distance around the circle).

Pi Day and Pi Approximation Day are two holidays held to celebrate the mathematical constant π (pi) (in the mm.dd date notation: 3.14); since 3, 1 and 4 are the first three digits of π. March 14 is also the birthday of Albert Einstein and the two events are sometimes celebrated together.

The only RGB country in the world!

The RGB color model is an additive color model in which red, green, and blue light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue.
read the wikipedia

The main reason why I've written it here is that there is only one country in the world which has flag that reflects all three RGB colors - AZERBAIJAN.

Keep this formule(x = x + 1) away from your math teacher

Keep this formule(x = x + 1) away from your math teacher

If you show this formule to your math teacher, he will beat you

So why do we need this formule?

This formule has no meaning in Math. But it's very useful in programming.

It means that x is a variable, and we make X's value equal to it's previous value + 1

That's it.