Ecology

Why they say "it's freezing cold": the origin and meaning of the expression

Why they say “it’s freezing cold”: the origin and meaning of the expression

Every winter the expression punctually returns: “It’s freezing cold“. The expression does not arise from legends or historical episodes, but from the role that the word dog has had for centuries in Italian: a strengthener with a negative flavorthe same as “dog’s life” or “dog’s life”. Over time, popular explanations have been woven around this saying – dogs left out ...

Why the Asian brown bug is dangerous for Italian crops: how it damages agriculture

Why the Asian brown bug is dangerous for Italian crops: how it damages agriculture

At this time of year, autumn, the Asian stink bug (Halyomorpha halys), completely harmless to humans and domestic animals, can create quite a few nuisances and inconveniences in our homes: adults nest in warm, sunny places, seeking shelter in homes to spend the winter and if disturbed they let themselves fall to the ground, pretending to be dead or, in ...

What happens when we flush the toilet? Where poop and other waste ends up

What happens when we flush the toilet? Where poop and other waste ends up

Have you ever wondered where everything we throw down the toilet ends up after flushing? Every day, millions of liters of waste water – which includes not only feces and urine, but also water from the sink, shower and household appliances – leave our homes and arrive in a place that is fundamental for the environment: the purifier. As you ...

A video shows the visible colors of the plasma inside the ST40 Tokamak for the first time

A video shows the visible colors of the plasma inside the ST40 Tokamak for the first time

In the heart of Oxfordshire, Tokamak Energy is carrying out Research&Development within the scope of nuclear fusion. He recently published an article on his site that includes a video which portrays the plasma and its various colors. Let’s see together why this video is interesting and what impact it can have for research and the future of fusion in the ...

Why the gecko is said to bring good luck: the meaning in different cultures

Why the gecko is said to bring good luck: the meaning in different cultures

The gecko it is a small reptile widespread throughout much of the world, in different species and variations. Its presence is culturally associated with luck, abundance, adaptability and affection: this symbolism, present since ancient times, is present because the gecko eats harmful insects and purifies the environment where it is found, but also to the fact that it regenerates its ...

What is the state of health of press freedom in Italy: the 2025 global ranking

What is the state of health of press freedom in Italy: the 2025 global ranking

There freedom of the press in Italy has worsened over the last year: globally, we have in fact gone from 46th positionwith a ranking of 69.8 out of 100, at 49th position and a score of 68.01 according to the 2025 ranking drawn up by the NGO Reporters without borders. The problem is tangible, especially after an attack on the ...

Greenland is getting smaller and moving northwest: the scientific explanation

Greenland is getting smaller and moving northwest: the scientific explanation

There Greenlandlocated near the North Pole, is changing shape, size and geographical position. The earth’s crust that constitutes it is compressing in some areas and stretching in others, with the result that the island has become smaller overall. Besides, yes it is moved towards the north-west at the pace of about 2 cm per year over the last twenty years. ...

Why the flame of gas stoves is blue and what it means when it turns yellow-red

Why the flame of gas stoves is blue and what it means when it turns yellow-red

Anyone who has one gas cooker at home knows that, once turned on, i stove one is formed immediately blue/light blue flamevery different from the red/orange one generated by a candle or a wood-burning fireplace. We might think that the color of the flame depends on its fuel, which in the case of stoves it is typically methane gas or ...