(/) This is the phenomenon whereby certain chemical elements – such as phosphorus – emit light in the dark. Due to a special configuration of their electrons, they absorb energy from visible light or ultraviolet light. When atoms receive this…
ILLUSTRATIONS: Rafael Sarmento The neighborhood friend created one of the most revolutionary devices in history with just a workshop in his room. READY FOR ANOTHER The belt is basically a web cartridge holder. It holds up to 30 units, which…
»> In the Bible, creation begins with light, which inaugurates the universe by separating day from night. It is what allows us to see the world and yet it is almost impossible to visualize its true nature. As if that…
In the region of Netherlands, in Europe. In fact, this Danish island, dating back to the 1300s, does not have the «old» in front, but is called Zealand. Along with the Netherlands, they were the two largest maritime provinces of…
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TdF suggested – Eduardo Victor She has a stomach, yes! The trap that captures prey acts as a digestive chamber. Most of the more than 700 identified species of carnivorous plants feed on insects, which is why they are also…
»> Everything indicates that this strange nickname was born on the streets of France. In the 12th century, the word camelot – probably a modification of the Arabic khmalat, which meant “rustic and plush fabric” – entered the French vocabulary…
It all starts with the yolk, which is nothing more than a large chicken egg. And make it big! At about 4 centimeters in diameter, the hen’s egg is the largest in the animal kingdom. The yolk is released from…
(/) This answer is simple: chicken is nothing more than the name given to young roosters. “Drawing a parallel with the human race, the chickens would be the young men and the roosters the adult men”, says zootechnician Edivaldo Antônio…
One of the “secret weapons” of the Viet Cong, tunnels were excavated by hand or with the help of shovels, reaching up to 20 m deep and 120 km long. While US troops and helicopters occupied the skies and forests…