Categoría Oddities

Why is green corn yellow?

(/) Illustrates: Will Leite The term has nothing to do with the color, but with maturation: the corn is still “green”, that is, it is not ripe. Until it is at the right point to be harvested green, corn takes,…

How are rays formed?

so that they arise rays, it is necessary that, in addition to raindrops, storm clouds have three ingredients in their interior: ice crystals, almost frozen water and hail. Such elements are formed in the range between 2 and 10 kilometers…

How did the horoscope come about?

The first records about the horoscope appeared from the 7th century BC, when several ancient civilizations were dedicated to the observation of the sky. Its populations believed that the stars could influence human life – especially the fate of newborns.…

How does the electric repellent work?

Reader Question Erison Siqueira, Sao Paulo, SPIllustrates Maíra ValentimEdition Felipe van Deursen Made in ChinaThe device is a resistor, capable of transforming electrical energy into heat. The heat, in turn, causes the evaporation of a chemical compound that is toxic…