Ecology

Pesciolini d'argento

Silverfish at home: what they are, why they are attracted to books and how to keep them away

It sometimes happens to find the so-called silver fish (Lepisma saccharina) in the books in our libraries at home. This insect completely harmless it is a regular resident of many homes, especially in damp and dark environments. It is called a silverfish due to its rapid movements and its oblong, silvery appearance which actually resembles the appearance of a miniature ...

tatuaggi italia record

Are there really more tattooed people in Italy than in the rest of the world? It seems so: 48% have it

For millennia, i tattoos they were a form of social, personal and artistic expression in different areas of the world: we have archaeological evidence of tattoos already in the ancient Egyptiansas well as in the most remote Polynesian populations. Over the last century they have become increasingly popular, and although estimates of the percentage of the population tattooed in different ...

Immagine

UAP sightings in New Jersey: what we know and the FBI statements

In recent weeks the news of numerous sightings of UAP – that is, unidentified aerial phenomena – in New Jersey. The fact became of international interest after December 13thwhen Trump on his social network Truth published a post saying that they had been spotted “mysterious drones” and – if you can’t understand what it is – you will have to ...

Immagine

Julia Butterfly Hill, the extraordinary story of the girl who lived 738 days on a redwood

Julia Butterfly Hill on the tree. Credits: Ethos Before Greta Thunberg there was another environmental activist who catalyzed the world’s attention on important environmental causes: Julia Butterfly Hill. The very young American activist, born on February 18, 1974 in Missouri, in December 1997 he climbed a thousand-year-old Californian redwood named “Luna” 61 meters high to prevent the logging of it ...

Mangiare in inverno

Why do we eat more in winter? What happens in the brain and body when it’s cold

The fact that in winter we tend to be hungrier and eat more is not only due to psychological, social, cultural factors, but also to one specific brain nucleus of the thalamus called xiphoid nucleus (Xi). This nucleus is activated after a long stay in the cold because the energy expenditure in our body it becomes noticeable and needs to ...

lievito di birra al microscopio immagini

How brewer’s yeast is made and how it looks under a microscope

When we think about the yeast of beerthe first image that might come to mind is that of small dry granules or a loaf soft and humiduseful for making dough rise. From a scientific point of view, brewer’s yeast is composed of colonies of unicellular fungi (Saccharomyces cerevisiae). But if we looked at it under a microscope, what would we ...

indovina citta dallo skyline quiz geopop

Can you guess Italian cities from its skyline? Test yourself in the Geopop quiz!

The skyline (in Italian translatable as “sky line”) is the profile or panoramic view of a city seen from afar, as if it were on the horizon line. From his observation one can easily derive aimage in two dimensions which, like the plant, is one of the most distinctive elements of a city, as if it were afingerprint of its ...

sale lavastoviglie

What is dishwasher salt used for? Here’s how it reduces limescale

Contrary to what you might think, the dishwasher salt It’s not meant to make plates and glasses shinier, but to avoid limescale encrustations which tend to deposit on the dishes during washing. In fact, home water contains calcium salts (especially the limestonewhich is essentially calcium carbonate) e magnesium which can form clearly visible encrustations especially on pans and pots. To ...