Ecology

camaleonte

The chameleons do not change color to camouflage themselves, because and how they do it

THE chameleons they are reptiles belonging to the family Chamaeleonidae With unique characteristics: the twisted tail, the rotating eyes, the very long tongue to catch the insects and the color of the changing skin. It is in the common imagination to think that the chameleons, from the Greek “Chamai” And “Leon” -” Lion of earth “, change color For camouflage ...

Fave e favismo

Why can’t some people eat beans? What is and how Favism works

May is the month of the beans and in supermarkets it is easy to find signs with writing “ATTENTION: fresh broad beans are exhibited in this place”. Have you ever wondered why? It is a notice for those suffering from favismThat It is not an allergy to the beans But a very widespread genetic syndrome in the human population, present ...

lago ninfee indovinello

The riddle of the lake and the water lilies, what it is and how it resolves

The situation of theRiddle of the lake nymphs It is this: in a lake there is a water lilies. This plant grows at a precise speed: every day the patch formed by its Leaves doubled of size. This means that – if we take it for granted that the size of the leaves is always the same – if the ...

festa della mamma

History and origins of Mother’s Day: because in Italy it is no longer celebrated on May 8th

The proposal to officially celebrate the maternal figure with the “Mother’s Day“, already celebrated by ancient times from Greek And Romansofficially dates back to mid -1800swhen the American pacifist Ann Reeves Jarvis He tried to bring together the Northist and South History Mothers after the Civil War, organizing for their opportunities for meeting. His daughter, at the beginning of the ...

roulette russa

The uncertain origins of Russian roulette, one of the most dangerous “games” in the world

There Russian roulette It is a gambling frompotentially fatal outcomewhich consists in bringing the temple a pistol loaded with fewer bullets than those that the drum could contain (generally, with a single bullet) and press the trigger. In this way, the possibility that the weapon disappears – and therefore kills the “player” – is completely random. Russian roulette, despite the ...

Alexandre Marius Jacob, l’uomo che potrebbe avere ispirato il "ladro gentiluomo" nato dalla penna di Leblanc.

The “real” Arsenio Lupin, the French anarchist Alexandre Marius Jacob

Alexandre Marius Jacob, the man who could have inspired the “gentleman thief” born from Leblanc’s pen. Arsenio Lupinethe “gentleman thief” conceived by the writer Maurice Leblancis the protagonist of numerous novels of the French novelist, whose first (Arsenio Lupin’s arrest) was published in 1905 in the magazine Je sais tout. Although everyone knows Lupine, not everyone knows that it could ...

monete

What coins were there in Italy before the lira? The currencies of the Italian States

Each of the main Italian pre -unity states had its own currency, understood as account unit: the Lira Sabauda It was used in the Kingdom of Sardinia; there Austrian lira in Lombardo-Veneto; The florin in the Grand Duchy of Tuscany; the shield in the Papal States; The duchy in the kingdom of the two Sicilies. Each kingdom also established its ...