Did you know that octopuses can distinguish geometric shapes (squares, rectangles, circles ...), open cans with screw caps and go through complicated mazes? The latest studies on these invertebrates reveal some amazing resemblances to humans.
When we shower, the plastic in the shower curtains is usually absorbed into the shower tray or bathtub and adheres to our body. This annoying phenomenon could be explained by the pressure difference that appears due to the fact that the air is lighter when it is humid or hot (inside the shower), and tends to rise, while on the other side of the curtain it is colder, drier. and heavy, so that it is shifted inward by the pressure difference.
Sand dunes hum in some areas of the planet, and their "melodies" - always a low sound, similar to a buzzing - have aroused human curiosity for centuries. Marco Polo spoke of them, and also Charles Darwin in his "Voyage of the Beagle". The sound is a soft hum at a frequency equivalent to the lower half of the musical range of a cello.
Dung beetles in Africa feed on the droppings of large mammals, usually forming a huge ball that they roll over the ground. Now a team of researchers from South Africa and Sweden has identified a practical use for transporting these wastes: keeping your body cool, as it allows you to stand at a distance from the hot sand.
When someone sits down and we ask them to cross their legs, 62% place the right over the left, 26% cross the left over the right, and the rest have no preference, according to a study carried out some years by Professor M .Reiss, from the University of Dresden (Germany).
Although twins share many characteristics, the fingerprint is not one of them. This is because the fingerprint patterns are not fully determined by the information in the genes, which is shared by identical twins.
It has a very strange name, but most of us have played or built one on occasion. The thaumatrope is an optical toy that is used to produce a sensation of movement in images. It consists of a disk with an image on each of its faces. Two strings or rubber bands are placed at the ends of the disc that twist a lot, so that, when stretched, the disc begins to rotate at full speed. The rapid turn creates in the viewer the optical illusion that both images are together.
It is the unpleasant habit of compassionately and furiously picking one's nose. Although according to a study carried out in Wisconsin in 1991, this form of obsessive compulsive disorder only affects 1% of the population, which usually ends up damaging the nasal mucosa, the rest of human beings also do it occasionally.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
