The Professional Card, which originated the current Work and Social Security Card (CtPs), was created during the Getúlio Vargas government, in March 1932. It is a document that records professional history and guarantees rights such as salary, vacation, 13th salary,…
If we take into account the rapidity of the toxic effects on the organism, the most poisonous are the gases used as chemical weapons. In the chart below, we’ve rounded up four super-damaging substances that take a maximum of five…
FUTURE MARKET The robots and microscopic machines of nanotechnology will not only change medicine, engineering or informatics. You will be able to feel them in everyday life, even when you go shopping. At least, that’s what the designer claims. Koert…
It is the use of living organisms in medical treatments. Although there are indications that the Maya, in Central America, and the Australian aborigines were pioneers of biotherapy, the first official record is the application of larvae in wounds of…
Reliable records say yes. Hypnosis is now recognized as an important tool to treat pain and overcome fears, and can be used to ease the suffering of patients with terminal cancer, reduce fear of dental treatments or face phobias and…
These aviators were not crazy people ready to kill themselves, but an effective weapon of the Japanese Army and Navy. They were part of groups of pilots organized to carry out suicide attacks against American and British ships in the…
“Brigadeiro” is also an aeronautical patent – and the name of the sweet is a tribute to Brigadier Eduardo Gomes, candidate for the presidency of the Republic in 1945. According to reports from people who followed his campaign, Gomes, who…
With machines that produce images of the eyes in very high resolution and compare the information with a database. But the identification processes are different: the retinal reading analyzes the formation of blood vessels that irrigate the back of the…
golf The basic objective of the sport is to hit the ball in all 18 holes on the course in as few strokes as possible. No one is quite sure how this refined game came to be. The main clue…
Every stone used as an ornament, because of its beauty, durability and rarity, should only be called a gem. The beauty of a gem is determined by a set of factors such as color, transparency, brightness, special optical effects (color…