»> Have you heard of photons and gluons? Because they are the smallest components of the atom – formed by pure energy, they don’t even have mass. Photons are the particles of light baptized by Einstein, while gluons are called…
»> To improve your digestive process. “It is normal behavior and should not cause concern”, says veterinarian Mauro Lantzman, from the Pontifical Catholic University of São Paulo (PUC-SP). Although they are not vegetarians, dogs, as well as other carnivorous animals…
ILLUSTRATIONS João Pirolla In general, out of prejudice or implication. Although the association of red hair with the idea of danger already occurred in ancient Egypt, things turned ugly between the Late Middle Ages (from the 11th century) and the…
Invisible and elusive, music is certainly the most malleable of all forms of expression. These qualities make the task of describing, classifying and labeling it extremely difficult and thankless. It can be said, however, that its basis is rhythm, or…
(/) Because there is the sanctuary of Ka’bah, built in the second millennium BC. According to Islamic tradition, Ka’bah is the only place on Earth touched by celestial forces. It was also in Mecca that Mohammed (570-652), founder of the…
It is not a specific date, but one of the most important inventions of humanity: writing. “History has as its main object of study societies that possess or possessed writing, while pre-historians dedicate themselves to obtaining information about human groups…
The largest is that of the ostrich and the smallest is that of a tiny species of hummingbird. Not coincidentally, the ostrich (Struthio camelus) is the largest bird in the world and measures up to 2.7 meters in height. Its…
There are several icons on the one dollar bill. They represent concepts such as war, peace, Congress and the original 13 US colonies. The symbology of the ballot is usually a source of discussion and mystery. There is evidence linking…
The abbreviations that name the roads have embedded codes that explain what type of road each one is. The two letters indicate whether it is federal (in this case, the name starts with BR) or state (names starting with state…
McGonagall’s mother ran away from home as a young girl – (strange world/strange world) Isobel Ross, Minerva’s mother, fell madly in love with Robert McGonagall, a Presbyterian minister who lived in the same village. Knowing that her parents would not…