How does the electric shower work?
»> 1. The first secret of the electric shower is how the faucet turns it on. It all starts with the water released by the faucet, which enters the shower box with a lot of pressure. As the water that…
How did the matchstick come about?
»> It was an alchemist from Hamburg, Germany, called Henning Brandt, who accidentally discovered, in 1669, the chemical element named phosphorus (from the Greek phos, light, plus phoros, carrier), while trying to obtain gold from urine. The discovery came to…
The biggest memes of 2015, part 1
illustrates William D’Arezzo LADY, LADY, YOU COULD SWITCH THAT BORING RETROSPECTIVE ON TV FOR OUR 547* FACTS OF THE YEAR ON POP CULTURE, SCIENCE AND – WE DOUBLE THE GOAL! – EVEN IN POLITICS * lie RETROSPECTIVE 2015 – Great…
How many people have lived in the world?
About 107 billion – roughly 16 times the current population of the planet. The calculation was made by researchers at the Population Reference Bureau website (www.prb.org), which gathers data on demography. The numbers are obviously very approximate, starting with the…
How did ballet come about?
Classical ballet emerged in the Italian courts at the beginning of the 16th century, although it is not known for sure where the inspiration for its first steps and choreographies came from. It was the Italian term balletto (“little dance”,…
What are the biggest cats in the Americas?
The three largest cats on the American continent are the jaguar (Panthera onca), the puma (Puma concolor) and the ocelot (Leopardus pardalis). All of them can be found in the Brazilian forests, which are also home to five other felines,…
What was trench fighting like in World War I?
It was a real quagmire, where the two rival sides in the conflict spent years immobilized without being able to advance into enemy territory. Started in 1914 because of economic and geopolitical disputes, World War I pitted the Central Powers…
The most powerful women in history
ILLUSTRATIONS Alexandre Jubran 10. Mary Stuart Country you ruled – Scotland Period – 1542-1567 It had to fight a lot to stay in power. Enthroned at just a week old, she married Francis II and reigned in France at his…
Why does the Earth rotate west-east?
(/) ILLUSTRATES: Raphael Mortari Because that’s how the great cloud of dust and gases that gave rise to the Solar System 5 billion years ago rotated. Our planetary system was formed by the condensation of a cloud of gas and…
What is the difference between dial-up and broadband Internet connection?
The dial-up connection necessarily uses the telephone line to transmit the data, while the broadband uses different systems, in addition to the telephone, which allow much faster transmissions. On dial-up internet, data is transmitted in the same way as voice,…