All it takes are three actions: collect, remove and treat the sewage before releasing it into the river. The recipe is simple, but most countries fail to apply it. A report by the World Water Commission, an international entity linked…
https:////o-que-ei-ching
With this report, we blow up our trilogy on the hierarchy of the Armed Forces. Let’s fly: just like the Army and Navy, the Air Force has more than 20 posts, spread across 22 different groups. Among these groups, those…
The laser beam is formed by light particles (photons) concentrated and emitted in the form of a continuous beam. To do this, it is necessary to stimulate the atoms of some material to emit photons. This light is channeled with…
There is no specific reason. Everything indicates that the very evolution of the species is responsible for the profusion of colors on the face and buttocks of mandrills, a group of baboons found only in the tropical forests of African…
QUESTION Cristiano Sales, Fatima do Sul, MS – (Ricardo Sanches/) – (Ricardo Sanches/) pawsThe thorax is divided into three rigid chitinous segments, each with a pair of legs. In many butterflies, the first pair is so tiny that it looks…
Such delicacies are traditional in eastern countries. In Brazil, there is no specific regulation on consumption, but there are those who say that it is an environmental crime. Would you dare to try it? Check arguments for and against Yes…
Here, there is no unified special force like in the United States, but several groups are trained to act in risky situations. Most are concentrated in Rio de Janeiro and São Paulo, states that have better equipped police forces and…
ILLUSTRATES Rafael Sica QUESTION Yasmin Lima, Florianopolis, SC No one dies because of the stench itself. But many substances with an unpleasant odor can be fatal due to the biochemical reactions they cause in our body. This is the case…
Skull Biblical reports indicate that, since antiquity, the Middle East already suffered from this deadly disease, whose name comes from the dark blisters that it causes to appear on the skin. The famous medieval outbreak of the Black Death would…