Why don’t old bald men have wrinkles on their heads? Jonas Michelon, Ijuí, RS Because of less flaccidity and lack of contraction of the scalp musculature. “With baldness, there is atrophy and retraction of the skin tissue of the scalp,…
It can be said that two cities compete for this unfortunate title: the small Juruena, in Mato Grosso, and Serra, one of the largest municipalities in Espírito Santo. In pure and simple statistics, Juruena would be the most violent: she…
»> This is the name given to persuasion messages made to be perceived only in the subconscious. The first experiment of the kind was carried out in 1956, in New Jersey, in the United States, by publicist Jim Vicary. During…
O vitiligo It is a disease characterized by white spots on the skin and mucous membranes. They arise after the disappearance of cells called melanocytes, which produce melanin (substance that gives ′′ color ′′ to our skin). In fact, some…
In Brazil these stars do not have a unique meaning. Teams put them on uniforms for a variety of reasons. They are almost always used to remember great titles conquered, but there are also those that mark the foundation date…
Termites form a highly organized society and spend most of their day working in their nest. “The population of a termite mound can reach millions of individuals and is divided into three basic castes: a royal couple, soldiers and workers”,…
Reader Question – Eduardo Apolinario Fumagalli, Ronda Alta, RS From the color of your eyes to the texture of your earwax, chromosomes are responsible for controlling every function in your body. They are formed by DNA, a chemical code composed…
The secret is a complex combination of special coating and smart design. The purpose of a stealth plane is to enter hostile territory, carry out its mission, and return safely undetected by the enemy. To achieve this, it is not…
(/) For starters, water doesn’t wet everything. “There are very wet things, like paper. Others less so, like glass (it gets wet but doesn’t soak) and some that simply don’t get wet, like some types of plastic”, says chemist Watson…
ILLUSTRATES Icarus Yuji With small motors activated by remote control, which move every detail of the figure’s expression. This type of puppet was widely used before the popularization of computer graphics, in films such as ET – The Extraterrestrial (1982),…