»> It depends on the angle at which the gun is pointed, but a bullet falling from the sky can even kill! In the case of a shot fired precisely upwards, at an angle of 90 degrees, the projectile can…

Reader’s question Clara Frischeisen, Brasilia, DFIllustrates Izzie PaschoalEdition Felipe van Deursen – (Izzie Paschoal/Strange World) BABY FOODIt is a process that if starts in the embryonic stage of coconut tree. Soon after fertilization, the future tree creates a food reserve…

Gone are the days when an electricity company employee needed to light pole by pole: today, this job is done automatically, respecting the decrease in natural light. The poles are equipped with sensors known as photocells or photoelectric relays, which…

It is a system for recycling household organic waste, with worms transforming food scraps into fertilizer. This process – called vermicomposting – takes place inside plastic boxes filled with soil, where the “workers” gobble up leftover food, digesting this material…

Blank bullets are like regular bullets, except for one crucial detail: they don’t have a projectile, the part of the ammunition that hits the target. Therefore, they are often used as a special effect in movie and soap opera scenes…

«> The largest is, by far, the Caspian Sea, which has almost 400,000 km2, a size that surpasses the territory of Japan. Wow, but is it a lake? Yes, this generates controversy among geologists, but despite the name, most…

It was a radioactive disaster that happened in Goiânia, in 1987. It occurred after two garbage collectors came into contact with a portion of cesium chloride, cesium-137. The chemical component was inside a cancer treatment device, which was in an…

»> By the definition that experts in sexuality give to orgasm, yes, it is true. No female in the animal world experiences the same delicious pleasure as women. “It’s not just a physical sensation, but also an emotional one, and…

ILLUSTRATES Jonathan Sarmento Cultural habits and different rules of behavior make many people burn the film in other countries. See some of the most common mistakes made by Brazilians who go abroad! 1. Use left hand to greet others Country…

»> They arise mainly due to the action of rainwater. Part of them infiltrates through the most permeable areas and another part runs down the surface towards the lower ground, forming small rivulets that, as they come together, create larger…