»> There is no question more puzzling than this! The vast majority of scientists believe in the Big Bang, or Big Bang, theory – but what came before it? Everything indicates that it is impossible to know for sure! The…
Illustrates Horacio GamaEdition Felipe van Deursen ATTENTION: Hidden images!Use red-lens glasses to see them REPORT “SUPERNATURAL RITUALS”– voodoo doll– Jewish Golem– Offering to the orixás– Wiccan ceremony– Islamic exorcism– Hindu black magic Necromancy Ritual In theory, any ritual of contact…
ILLUSTRATES Pedro D’Apremont became a young lady Balls in debutantes emerged in Europe in the 19th century, as form in nobles present their daughter to society, warning those interested that she was no longer a child and that could marry.…
Peppers burn because they have so-called capsaicinoids. These weirdly named substances have no smell or taste, but they stimulate the nerve cells in the mouth, producing that burning sensation, as if the mouth is on fire. Capsaicinoids are produced by…
READER QUESTION Guilherme Cardoso Lima, Sao Paulo, SPILLUSTRATES Marcos PennaEDITION Bruno Lazaretti The same geological processes that create, shape, and reshape the Earth also generate temperature and pressure situations that combine elements into stones precious. The exception is organic gems,…
Nobody knows for sure when man started chewing resins extracted from trees, but there are historical records that several ancient peoples, such as the Greeks, already had this custom. The habit was also common on the American continent, even before…
They prevent insects, especially mosquitoes, from finding us. For this, repellents use substances that have the ability to clog the microscopic pores of these little animals’ antennae when they approach us. It’s just that mosquitoes use their antennae to smell…
(Mariusika11/iStock) There are two types. The first uses sunlight only for heating, usually water. “This plate consists of a dark surface, which absorbs energy from the Sun and transforms it into heat”, says engineer José Kleber da Cunha Lima, from…
1. HEART OF THE MACHINEA pump makes the water move inside the coffee maker. First, the liquid goes from the reservoir to the boiler, and from there to the needle, where it penetrates the capsule. When you select whether to…
»> The secret of a caller ID is the modem it has, a device that converts telephone pulses into digital data and vice versa. When you make a call, your telephone handset transforms data such as your voice and your…