Ecology

What do shoe sizes correspond to?

What do shoe sizes correspond to?

Have you ever wondered what do European shoe sizes correspond to? For example, if you have a foot size of 39, what does the number 39 correspond to? They are certainly not centimeters, otherwise you would have a rather long foot… The unit of measurement used in Europe for footwear, in fact, corresponds to French pointsa parameter that corresponds to ...

Antarctica: drilling of the SWAIS2C project begins to reconstruct the climate of the past

Antarctica: drilling of the SWAIS2C project begins to reconstruct the climate of the past

The Ross Shelf, Antarctica. Credit: USGS In West Antarcticain a region of the Ross platform called “Crary Ice Rise”the third drilling campaign of the SWAIS2C project (Sensitivity of the West Antarctic Ice Sheet to two degrees of warming). The project involves researchers from 10 countries, including Italy, with the INGV (National Institute of Geophysics and Volcanology), the University of Siena, ...

What happens if I put toothpaste on my car mirrors: does the trick really work?

What happens if I put toothpaste on my car mirrors: does the trick really work?

With the start of the winter season and the arrival of bad weather, various tips for dealing with the rain and, above all, the wet windows: among these there is also the “toothpaste trick” which, if applied on mirrors of the car or motorbike, it would prevent raindrops from settling on the surface. But it really works? Indeed, doing a ...

Why is it said that touching iron brings good luck? Origin and meaning of the gesture

Why is it said that touching iron brings good luck? Origin and meaning of the gesture

Credits: Hamdigumus via Wikimedia Commons It must have happened to everyone at least once that they have touched the nearest metal object or heard something say “Knock on wood!” out of good luckafter doing something that could bring bad luck. But where does this custom so rooted in our culture come from and why does such an expression exist in ...

How air purifiers work, what they are used for and when they should be used in the home or office

How air purifiers work, what they are used for and when they should be used in the home or office

The closed environments they tend to accumulate dust, pollen, light chemicals, microorganisms and odors more than outdoors, because our own daily activity introduces and traps these contaminants. Those who suffer from allergies, asthma or have particular respiratory sensitivity may be more affected by unhealthy environments, and in these cases the reduction of particles through the use of air purifiers it ...

Weather warfare: can the climate be used as a weapon against the enemy?

Weather warfare: can the climate be used as a weapon against the enemy?

Graphical representation generated with AI Even if in a limited way, use the climate as a weapon of war it is possible. Techniques like cloud seeding (i.e. the seeding of clouds), born in the 1950s for cause rainthey have even been used for military purposes. The best known example is theOperation Popeye: Between 1967 and 1972, during the Vietnam War, ...

Is Simonetta Vespucci really Botticelli's Venus? The muse symbol of the Renaissance

Is Simonetta Vespucci really Botticelli’s Venus? The muse symbol of the Renaissance

Birth of Venus, Sandro Botticelli (Florence 1445 – 1510) There “Birth of Venus” by Botticelli, preserved in the Uffizi Galleries in Florence, it portrays Venus, the goddess of love and beauty, as she lands on Cyprus, with her long red hair and the grace that made her famous. Commissioned by Doctors and inspired by classical art, the work has fueled ...

Why the Citicorp Center skyscraper in New York risked collapsing: the secret plan to fix it

Why the Citicorp Center skyscraper in New York risked collapsing: the secret plan to fix it

In 1977 the skyscraper Citicorp Center – one of the most innovative engineering feats of the 1970s – fit into the already dense Manhattan skyline. However, one year after the inauguration, an alarming fact emerged: a sufficiently intense storm could have caused New York’s iconic skyscraper to collapse, putting thousands of people at risk. This is where the story of ...

Who is Nicolás Maduro: biography of the president of Venezuela ousted by the United States

Who is Nicolás Maduro: biography of the president of Venezuela ousted by the United States

Nicolás Maduro, the Venezuelan president ousted from power by the United States attack on January 3, 2026, is born in Caracas in 1962. Politically close to Bolivarian socialism Of Hugo Chavezbecame president of Venezuela in 2013. He held the office until 3 January 2026, always being re-elected in elections contested by his opponents and Western countries. Despite proposing to follow ...

The United States attacks Venezuela and captures Maduro: what the Venezuelan President risks

The United States attacks Venezuela and captures Maduro: what the Venezuelan President risks

The President Nicolás Maduro he was captured together with his wife by Delta Forcethe main one US Army special unit, following numerous air raids on the capital Caracas that hit the military base of Fuerte Tiuna and other military objectives. After the US attack the Venezuelan government declared it state of emergency. They had already been going strong for months ...