Autor: editor fantasma

I remember the walls of a school where I worked a graffiti by Einstein and the formula E = mc².

The birthday paradigm is a very interesting conditional probability result. You will easily find a blog on the internet explaining

In the early 70’s when the popularity of chess was on the rise in the world, a rumor emerged among

Interesting how in the history of Mathematics we see that several discoveries (let’s call it that) occurred in completely independent

Recalling my graduation in Mathematics at USP, I realize how things are presented to us in a direct and final

I don’t ask you to accept anything if you feel there is no basis for it. Soon everyone will agree

This week I was talking to my friend Pavel, when I commented on how cool regular polygons would be with

In some posts on this blog I’ve already told you a little about what I research on theorem proofs (My

In several posts on this blog we have already talked about the role of proof for mathematicians and related fields

“As Baguettes de Poincaré” is a famous anecdote that has gone through many names and characters. The version of which

The entire math community is familiar with the famous 4 Color Theorem. Its statement states that any map, drawn on

In the early 1910s, when aristocrats from European countries were murdered every few weeks, authorities began to fear the roots

So, you do math, right? So try to demonstrate this property… The sentence above is frightening, even for trained mathematicians.

At the end of chapter 118 of the Enen Shouboutai manga, the characters find in the ruins of an “ancient

In previous posts I talked about the difficult relationship of the character Taeko Okajima with Mathematics (part 1), the role

In previous posts I told about the difficult relationship of the character Taeko Okajima with Mathematics (part 1), the importance

In previous posts I narrated a little about the relationship of the character Taeko Okajima from the 1991 anime Omoide

In the previous post I narrated a little about the relationship of the character Taeko Okajima with the mathematics, from

In the 1991 anime Omoide Poro Poro (Only Yesterday), the protagonist Taeko Okajima, at the age of 10, suffers from

When we think about Scientific Disclosure, it is important that the elements of communication are present in the process of

In Italy, in 1872 the Quirinal Palace became a place of terror, full of suicides and madmen. It was less

Imagine an ordinary, rectangular chess board with 64 squares. So we started a process of rounding its edges, rounding all

Suppose you had the strange urge to eat a flavored gelatin every day of the month of May, day 1

Early 1907, the Russian royal family celebrated the turn of the year with a traditional party and gift exchange. The

In mathematics we call correlation a type of statistical relationship that determines how much the variation of two factors is

In 1890 there was a devastating winter in the province of Gévaudan in south-central France, which led eight travelers (Alberto,

It was summer in Budapest in 1931, when vampire Helena was preparing to return to Paris. Being a vampire requires,

It is scary to know that in this graph, the red column represents a population about 426% larger than the

When I say that I have a Science Blog, several people (mainly in the academic world) already assume that my

The Prisoner’s Dilemma is a famous mental experiment in game theory (a branch of applied mathematics that studies strategic situations

You may not even know it by name, but you have certainly seen a set of little pieces of wood

A video of a guy defending the Earth’s flatness circulates on the internet, based on the argument that we cannot

Phineas and Ferb is a design that I really like, mainly because of Dr. Heinz Doofenshmirtz’s inventions, which carry the

Think of a conventional chess except that it has no pawns and infinite horizontal and vertical dimensions. But in the

In Calculus, the integral of a function was originally created to determine the area under a curve in the Cartesian

Age of Mythology (also known as AoM), is a mythology-based real-time strategy computer game produced by Ensemble Studios and distributed

In episode 35, by JoJo No Kimyou Na Bouken: Stardust Crusaders (2014), entitled “D’Arby the Gambler – Part 2”, the

People often say that they don’t like mathematics, which is a complex and difficult area, but when mathematics appears in

I am 29 years old and have not taken my National driving license until today 🙂 but I was analyzing

ENEM is an acronym for “National High School Exam”, a standardized test used in Brazil by several universities as an

Recently I have seen several discussions on the internet about the ratio of the diameter of a pizza offset more

Some time ago in the city of Larkinstrongner in Germany, great advances in Social Sciences began. Researchers in these areas

One thing that I have come to loathe are those so-called ‘logic challenges’ in which some values ​​are given in

The first time I heard about this famous law, it really came as a surprise. I found it unbelievable that

In Mathematics graduation we see many property demonstrations (whether they are called by various names as already discussed in the

There is a very curious and counterintuitive history of mathematics. It involves a team of statisticians, who during World War

I’ve always hated restaurants self-service by the pound. I believed that the option flat rate was better, after all, you

At school we learn that π is a special number, a constant obtained by the circumference of a circle divided

In mathematics we often hear that something is a Corollary, something else is a Lemma, that is a Proposition, there

This is a dilemma presented in the context of Sesame Street from the meme below: The respective scene is from

With the current pandemic, the need for distancing within public establishments meant that various materials proposing this safe distance were

Have you heard the term “exponential”? Perhaps in a context more or less like this: “Such a thing has an

D&d (Dungeons and Dragon) is a popular RPG system usually set in the context of a medieval fantasy world. In

A few days ago a meme of an 8 year old boy circulating on the internet that faced several chess

In this post we will deal with classes and subclasses. In mathematics a class is a collection of objects that

In those days (end of July / 2020) several memes of people circulate doing supposedly absurd things and being represented

In episode 38 of SpongeBob, entitled “The Spatula Of Neptune”, SpongeBob removes the golden spatula from the stone (reference to

Reminder: 15th century goes from 1401 to 1500. It is interesting when we imagine the conception of civilizations prior to

In the Dr. Stone anime, a supernatural phenomenon occurs with humanity in the contemporary period, causing all people to be

If you parachuted in that post, don’t be alarmed if you don’t understand the title, let’s start the explanations. XP

Zombie apocalypses are very common themes in films, series, anime and games. Several reasons can lead to a zombie apocalypse,

Once upon a time in a very distant kitchen, a cupboard full of pots and lids.Whenever someone needed to keep

We have talked many times on this blog about demos, their importance for mathematics and everything. However, anyone who thinks

(Traduzir) Today we completed 1 year of posts, to commemorate this special date brought an analysis of my favorite cartoon,

5-part special on the creatures of X^n heads.

5-part special on the creatures of X^n heads.

5-part special on the creatures of X^n heads.

5-part special on the creatures of X^n heads.

5-part special on the creatures of X^n heads.

Would a man who became a bat and costume yourself like a bat be a bat-manbat or a man-batman?

Before traveling around in time, it is recommended that you purchase a good divergence meter.

We have reached the hundredth post! (considering posts in Portuguese and English)

(Traduzir) Puella Magi Madoka Magica, simply referred to as Madoka Magi, is an anime series that aired in 2011. The

We circled the Earth without gravity with string. How much more do we need to increase its circumference so that a cat goes through it?

I wanted to play that board, but I can’t find the dice … with math you can solve this crisis!

There are 3 doors, behind one is the prize and in the goat. You chose one and the presenter opened another with a goat, do you want to change the door?

After drawing “safe” cards, there is only one left in the pile, which by elimination is the card of defeat. Is the last to draw more unlucky?

Apparently some players just want to see the world go up in flames, but there is a clear goal to it, and it may not be defeat …

In a recent game, I was asked how to calculate the probability that in a play we will obtain resource at a vertex. The solution is quite simple …

What is the chance of reaching the age of 110? We can estimate this based on life expectancy if we assume some functions for its behavior.

The “Seven Bridges of Königsberg” is a historically notable problem in mathematics, however its solution requires the destruction of several bridges.

What would chess look like in which the outcome of the actions was uncertain? What would change, would the usual strategies remain?

Have you ever thought of playing Pokémon Red without capturing or buying pets, just making them up? Would it be cool, is it feasible to win like that?

The confrontation between Yugi Muto with his Exodia and Seto Kaiba with his White Dragons with Blue Eyes in the game Duel Monsters is an epic but very improbable.

How many Snimon would need to team up to fight against a BlackWarGreymon?

Death Notes present several logical inconsistencies linked mainly to digital photos.

Have you ever thought about a single classic chess game with 3, 4, 5 … 10 people? If we have enough chess boards for this, the solution is “simple”

I bet you’ve already asked yourself, how many degrees have a regular infinitone … in this post we’ll find out the answer to this question that plagues your daily life

Tired of losing at RoShamBo? Here you will learn the best way to play.

A historic dispute ends with a conflicting result that leads to a tie, would a mathematical analysis lead to the same verdict?

What is the chance of choosing 50 Jupiterians at random and 2 of them having a birthday on the same day?

There is a meme on the internet that explains how to build a “circle” with a diameter of 1, but with a perimeter of 4.

Although some things seem to us to be indisputable truths, supposing that they are false can lead us to new ways of seeing the world.

Lord Boros choose the “invincible” Saitama as his opponent … but that was not his greatest bad luck

When choosing an alternative in luck, counting the characters of the answers can be a strategy.

Why do automatic translations mess up the text so much and how can we use it to our advantage?

If you like to play chess you can imagine that it is impossible to give a triple check, but could you explain why?

How is it possible for Leliel’s shadow to be a sphere while he himself is a black spot on the ground?

You who use secret locks, be careful! Because with the basics of Combinatorial Analysis it is possible to discover the password in several models!

More than 2.000.000 confirmed to invade Area 51 on 20/09/2019 running in the Naruto style … this could work if they used a logarithm function.

Can optimization help you buy more tasty pizzas while spending less, did you feel hungry for knowledge? Come and taste …

Did you know that Dragon Ball’s Fight Power can be explained with the Vector Product?

In the last of the challenges, the Man who Counted was saved not only by his Calculus, but by his luck.

Did you know that with any basic operation we can start at Irrationals and end up outside of them?

Who starts at Chess has an advantage? Is this true or is it just an estimate?

Have you ever heard a dull math joke? Did you know that there are infinite of them?

In Greek mythology the hydra is a monster that when it loses a false head, others are born in its place … where will the conditional probability appear?

What is the best number? By the way, there’s only one correct answer. The best number is 73.

No matter how far you run in the positive Reals, this series will grow until find you.

This post can literally save your life if you get involved in an old-west triel in which the order of shots and hit frequency is well defined!