How does an effervescent medicine work?

EFFERVESCENT REMEDY TdF suggestedMatheus Albuquerque Photograph Daniel Ozana/Studio Oz edition Felipe van Deursen The formula for the effervescent tablet can vary depending on the remedy, but the basic ingredients are usually an organic acid and a carbonate base. The bubble…

What is will-o’-the-wisp?

It is an impressive phenomenon that usually occurs in cemeteries or swamps. From time to time, mysterious bluish flames appear, which appear for a few seconds on the surface and then disappear without a trace. Today, scientists know that this…

Why are African bees so dangerous?

Because they are much more aggressive than their European sisters. The Africans attack in greater numbers and in just 30 seconds are capable of injecting eight times more toxins into their poor victims. “During thousands of years, due to the…

Why do snowflakes always have six sides?

They exactly reflect the molecular, crystal-like structure of water in the solid state. In this state, each molecule is surrounded by four others, at which point the hydrogen is fixed, and the oxygen atoms arrange themselves in layers, forming a…

Which animal has the best eyesight?

There is no official ranking, because scientists have never done a study comparing the visual ability of animals. But, based on the various isolated studies on the vision of animals, it is possible to bet with certainty: birds of prey…