The secret for these objects to remain in space, revolving around the Earth, is the “push” given by the rockets that put the satellites into orbit. After ascending into space, a thruster stage accelerates the satellite to a speed that…
»> Incredibly, they like to stay that way to save energy when taking off for a flight. “This way of sleeping has been very useful for bats. Flying uses a lot of energy and one of the moments when more…
»> Most lizards reproduce just like this. The most curious case lives in the southwest of the United States and in the north of Mexico: it is Cmenidiphorus uniparens, a species of lizard formed only by females that reproduce without…
It is a sodium derived from glutamic acid, used as a flavor enhancer in industrialized foods, such as crackers and snacks. It can also be used as a type of seasoning. It is made of hydrolyzed vegetable protein or glucose…
BUILD YOUR OWN CAR Using a carcass sold at a bargain price and scrap metal parts, a group of 15 high school students in Philadelphia (USA) built a vehicle powered by biodiesel for an automobile contest. The team didn’t take…
»> The most common reasons are cold and fear. “We get goosebumps because our hairs are raised by the action of tiny muscles in the skin. These muscles come into action under the command of certain parts of the brain,…
To go up and stay suspended in the sky, the airship relies on helium gas, which is lighter than air; already in the forward displacement, motorized propellers come into action. This is basically how this strange vehicle, which appeared in…
»> It is a literal translation of the English honeymoon. In Ireland, newlyweds had the custom of having a low-alcohol drink called mead – or mead -, basically composed of fermented honey and water. The potion was supposed to be…
(Andrey Zhuravlev/iStock) There are five different processes. They all start with the same step: pouring the coffee beans into hot water to soften them, then soaking them in a solvent. One of the more traditional methods uses methylene chloride, a…
Reader Question – Samuel Nakahara, Sao Bernardo do Campo, SP Relating the trade to those who drive poorly has to do with the multiple functions carried out by barbers until the end of the 19th century. At that time, both…