Tag: Mathematics
Mathematical game: Aristotle’s wheels
Aristotle’s paradox of two wheels, also called Aristotle’s wheel paradox, has given rise to many questions. What’s the problem ? In ” The Mechanics », a text attributed to Aristotle…
Math game: controversy at the cash register
Do you have to be an expert at mental arithmetic or write down all the prices to check a bill at the supermarket? Maxime bought two pens, € 1.20 each,…
Math game: sheet thieves
A certain number of mathematical problems and puzzles come to us from the Middle Ages like the one explained below. It is about theft and sharing. Algebra simplifies its resolution…
Mathematical game: what is the weight of the cork?
Behind a mathematical riddle often hides a more or less deep mathematical question, the question posed being a dressing. This is the case with first degree equations. A father is…
Mathematical game: will you be able to discover the scrambled number?
In the vocabulary of cryptography, to encrypt is to scramble. It does not matter whether we are dealing with Arabic numerals or not. But, of course, it is not forbidden…
Mathematical game: Notre-Dame de Paris and the fourth dimension
A monument almost disappeared and the hearts of the French are touched. Money is pouring in to fix it to the point that some are shocked. Wouldn’t it be better…
Mathematical game: this number is possible, this other impossible!
What is more difficult: to show that something is possible or to show that it is impossible? the professor Phi asks his Alpha students and Beta : – Take a…
A mathematical model to explain the coiling of mollusc shells
What do a snail shell, climbing vines and ram’s horns have in common? All of these biological structures have a spiral shape. To understand the formation of this geometry, a…
What are your chances of winning the lottery?
Winning the lottery, everyone dreams of it. But few are the chosen ones. Because, mathematics confirms it, your chances of winning the lotto when you validate a grid are extremely…
Mathematics: what is a pseudo-random sequence?
In several branches of mathematics, we use random sequences. The problem is that it is difficult to manufacture them automatically. We then use sequences built from a deterministic algorithm which…