Between the 12th and 19th centuries, families of warriors formed Japan’s elite soldiers – training began at age 3. Samurai emerged during the consolidation of the country’s feudal system and peaked in the 15th century, when the archipelago had 260…
ILLUSTRATIONS Evandro Bertol Yes. About 250 people are preserved in nitrogen tubes at extremely low temperatures, and more than 2,000 living people are waiting to be frozen after death in order to awaken in the future. Whether the experiment will…
»> In certain cases, yes. In fact, the flight height of swallows is guided by appetite: they go where there are more insects, their favorite dish. It turns out that the rain really influences the displacement of the meal of…
To detect prohibited substances, such as explosives and drugs, there are three basic pieces of equipment: a metal detector, an X-ray and a trace detector, which indicates traces of explosives and drugs on the passengers’ bodies and clothes. “In Europe…
Because their residues rise with much more force than most conventional bomb explosions, forming a kind of jet of matter. When an atomic bomb is detonated, it produces a bubble of very hot gas, violently heating the air around it.…
(Márcio L. Castro/) question Robson Vilanova Island, Sao Sepe, RS 1) A BUG’S LIFEO bugsilk (bombyx mori) it is the caterpillar of a moth. The female of the animal, domesticated more than 3 thousand years ago in China, lays up…
Tickling is the body’s defense system. Scholars believe they arose in prehistoric times. Its function was not to make people laugh, but identify problems, like venomous insects. The animal’s rubbing against the skin provoked an unpleasant sensation of alertness, forcing…
(Verdant/Weird World) Reader Question Kleber Ruiz, Sao Paulo, SPIllustrates Raphael MortariEdition Felipe van Deursen It is a movement that preaches total abstinence from alcohol, drugs and cigarettes. It emerged in the early 1980s as a response to the excesses of…
SEEING IS BELIEVING Who has the biggest wardrobe in Belgium? The Manneken Pis, a famous statue of a little boy peeing, in Brussels. Following a tradition that began in 1698, the city’s residents have dressed it in more than 850…
Yes. The Hague Conventions and the Geneva Protocol – not to be confused with the Geneva Conventions –, drafted by various countries from 1899 to the late 1990s, restrict the use of eight types of weapons on the battlefield. In…