Categoría Oddities

Why does magnet attract iron?

In atoms, the electrons and the nucleus are always in a rotational movement called spin. If they rotate in different directions, one movement offsets the other and there is no magnetism. This is what happens in most materials. In magnets,…

What is the death train?

This is the name of the train that runs between the Bolivian cities of Puerto Quijarro, on the border with Brazil, and Santa Cruz de la Sierra. A kind of initiation rite for every self-respecting backpacker, the train covers part…

How long did the last Ice Age last?

(/) QUESTION Vinicius Rodrigues, Florianopolis, SC Although it is difficult to determine an exact number, it is known that it occurred about 60 million years ago, in the period known as the Upper Tertiary of the Cenozoic Era. The ice…

The Tree of Life for Dogs

ILLUSTRATIONS: Alexandre Jubran No, he didn’t come from the wolf! Check the cladogram of canis familiaris and learn how a prehistoric creature became your best friend. But beware: the evolutionary tree of dogs is still very inexact. This flowchart brings…

22 curious proverbs from other countries

ILLUSTRATIONS Leandro Lassmar 1. “The devil’s favorite piece of furniture is a long stool” Original Des Teufels liebstes Möbelstück ist die lange BankCountry GermanyIt is a criticism of idleness or laziness — in the original language, the bench is the…

7 bizarre facts about Poland

(MarcoMileu, Wikipedia/) From villain to idolLegend has it that the country was founded after Prince Krakus killed the dragon that lurked on Wawel Hill. Today, the creature has become one of the country’s icons, with a statue in Wawel Cathedral…