Ecology

Why our mouths water when we see a pizza: the body prepares for the arrival of food

Why our mouths water when we see a pizza: the body prepares for the arrival of food

The sight of a steaming pizza, the smell of bread or a freshly baked croissant and we find ourselves with the famous “mouth watering”, which is nothing else than an increase in saliva. It is the sign that the brain is starting to prepare for the arrival of the foodin a process called cephalic phase. THE’increased salivation is among these ...

Doggerland, the submerged land of the North Sea was rich in forests in the last ice age: the study

Doggerland, the submerged land of the North Sea was rich in forests in the last ice age: the study

The map of the Doggerland territory. Credit: University of Bradford Submerged Landscape Research Center & Nigel Dodds. The land bridge known as Doggerlandwhich linked England to Germany and Denmark during thelast ice ageit was covered by forests when much of the northern hemisphere was instead occupied by ice. A new study from the University of Warwick, published in the journal ...

Why can't wind energy be produced at home like solar energy today?

Why can’t wind energy be produced at home like solar energy today?

Image generated with AI. Photovoltaic is now a household appliance: it is installed on the roof, produces predictable energy and requires relatively simple authorizations. THE’domestic wind powerhowever, much remains rarer. Yet the wind is a renewable source like the Sun. So why can’t we put a small turbine on the roof of the house and produce energy? The mini-wind farm, ...

Why you can't self-service LPG refueling in Italy: safety and risks of doing it yourself

Why you can’t self-service LPG refueling in Italy: safety and risks of doing it yourself

Anyone who has an LPG car in Italy knows very well that Self-service refueling is not permitted. This is actually only partially true. Within the decree of March 31, 2014 in fact it is said that it can be done autonomous refueling of LPG provided that a whole series of conditions are satisfied requirements. And this is precisely the crux ...

The trick of coffee grounds against bad odors: what the science behind the remedy says

The trick of coffee grounds against bad odors: what the science behind the remedy says

There are various household tricks circulating online featuring i coffee groundsthat is, the residues of ground coffee that remain in the filter of the coffee maker. It is often said that they are useful for eliminating unpleasant odors, but is this really the case? Coffee grounds can help eliminate bad odors thanks to them porous structure and the presence of ...

The gyres of the Naruto Strait in Japan, a marine phenomenon up to 1.5 km in diameter

The gyres of the Naruto Strait in Japan, a marine phenomenon up to 1.5 km in diameter

The Naruto’s tightin Japan, is famous for its marine vortices (Naruto-no-uzushio), natural phenomena capable of reaching dimensions greater than km in diameter and can also be photographed from space. Tidally tied, they spawn four times a day and individual vortices last just a few seconds or tens of seconds. But how exactly are they formed? Formation and characteristics of Naruto ...

Almost one in two births today occurs outside of marriage

Almost one in two births today occurs outside of marriage

THE children born out of wedlock they are becoming more and more a new normality: today they are almost one in twoespecially among mothers under 25 and among Italian couples. But the phenomenon is not uniform across Italy: the geographical area also makes a difference, and Sardinia is the region with the highest percentages. The most recent Istat data tell ...

Because Saudi Arabia and Pakistan are allies

Because Saudi Arabia and Pakistan are allies

The collaboration between Saudi Arabia and Pakistan is in the political, economic, religious-doctrinal and military fields. There Islamic Republic of Pakistan and the Kingdom of Saudi Arabia have maintained a for decades collaborative relationshipwhich saw the two countries getting ever closer on a political, economic, religious-doctrinal and, above all, military level. This closeness was undoubtedly favored by the common adherence ...

How the slope of a road or slope is calculated and why it is expressed as a percentage

How the slope of a road or slope is calculated and why it is expressed as a percentage

Who hasn’t happened to see, especially in the mountains, a road sign with a percentage which indicates the slope of the road? But what exactly does that number mean to us? How is it calculated, and to what angle does a 100% slope correspond? Let’s see the mathematical answers to these questions and what slope the steepest road and funicular ...