Ecology

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The Monty Hall paradox: the explanation of the three doors game and the calculation of probabilities

With “Monty Hall problem” (or paradox of Monty Hall) refers to a famous and only apparent enigma which falls within the scope of probability calculation. This paradox takes its name from the conductor of game shows American Let’s Make a Deal in which participants must make agreements – deals – right with Monty Hall (pseudonym of Maurice Halprin).The wording “paradox” ...

Fastweb + Vodafone

Swisscom acquires Vodafone Italia, the giant Fastweb+Vodafone is born: what changes for users and numbers

Credit: Fastweb + Vodafone. There merger between Fastweb and Vodafone Italia is official. With the closing of the operation taking place on December 31, 2024the Swiss giant Swisscom completed the acquisition of Vodafone Italia for 8 billion eurosgiving life to a new corporate brand renamed very simply Fastweb + Vodafonewhich will manage 20 million mobile users and 5.6 million fixed ...

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The Quadrantids meteor shower arrives on January 3, 2025: where and how to see the show

Credits: Mike Lewinski, CC BY 2.0 The first astronomical show of 2025 is coming with the Quadrantid meteor showergenerated by debris from asteroid 2003 EH1. So keep an eye on the sky to enjoy these spectacular meteors burning in the Earth’s upper atmosphere at an even faster rate 120 meteors per hour at the peak of the swarm, thus becoming ...

2025 curiosita matematiche

2025 is a “mathematical” year: here are some mathematical curiosities about the number 2025

Because the arrival of the 2025 Has it been greeted with particular enthusiasm by mathematicians? Well, because the number 2025 it is decidedly particular and full of curiosity. Using only the basic notions of arithmetic, in fact, we can write this number in several truly remarkable ways! First, the number 2025 is a perfect squareor the product of an integer ...

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Plane crash in Kazakhstan, the possible causes and the hypothesis of the surface-to-air missile

The December 25, 2024 a occurred plane crash in Kazakhstan which continues to raise big questions: theEmbraer 190 of Azerbaijan Airlines, in service from Baku to Grozny, crashed near Aktau and from the first moments it was assumed that it was not a technical failure but a disaster caused by a surface-to-air missile. We therefore analyze the information at our ...

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Why cell phones don’t take trains: causes and possible solutions

Everyone will have come across a frequent problem at least once when traveling by train: the poor reception mobile phone signal while traveling. This aspect, which some may appreciate, makes the travel experience less pleasant for many passengers, especially when they need to stay connected for personal or professional reasons. But why don’t cell phones work well on trains? We ...

acqua deuterata pesante affonda

Sinking ice: a phenomenon linked to the density of heavy water

We all know it: ice it floats on the water. This happens because the density of ice is smaller than liquid water. However, there is a form of ice which, on the contrary, sinks into water: this type of ice is formed from water deuteratedalso called water heavywhich instead has one higher density of normal water. Let’s see what this ...

colosso di rodi

Colossus of Rhodes, history and legend of one of the seven wonders of the ancient world

Among the seven wonders of the ancient world (term used by ancient writers to indicate the seven most important monuments ever built, including the Library of Alexandria) The Colossus of Rhodes it was the last to be built but also the first to collapse. It was a mammoth bronze statue with the features of HeliumThe god of the sun of ...

Reconquista copertina

History of the Reconquista, the Christian expulsion of the Arab Muslims from the Iberian Peninsula

There Reconquest is the process by which i Christian kingdoms they reconquered the Iberian Peninsula, previously almost completely controlled by Muslim dynasties. The Reconquista took place between the 8th and 15th centuriesbut the most intense and important phase developed between the 11th and 13th centuries. It wasn’t a continuous processbecause the relations between Christian and Muslim kingdoms were not always ...