Ecology

How will Jeddah airport become one of the largest in the world? The expansion project

How will Jeddah airport become one of the largest in the world? The expansion project

As part of the revolutionary project Vision 2030which is redesigning the face of Saudi Arabia, one of the most ambitious projects is the expansion ofKing International Airport Abdulaziz of Jeddah. This airport is at the center of a massive project which aims to increase its annual capacity to 150 million passengers by 2050. The goal is to transform Jeddah into ...

Heavy metals in drinking water: how they are analyzed and quantified

Heavy metals in drinking water: how they are analyzed and quantified

If we evaporated a liter of water, a thin layer would remain at the bottom white powder: it is the so-called fixed residuecomposed of mineral salts and traces of heavy metals. Precisely the latter – lead, mercury, cadmium and others – are at the center of the chemical analyses which, as you can see from the video, guarantee the safety ...

Fossils from 300 million years ago discovered in the Alps in rocks from the Earth's mantle: it is the first time in the world

Fossils from 300 million years ago discovered in the Alps in rocks from the Earth’s mantle: it is the first time in the world

In the Dora-Maira massifin Piedmont in the Western Alps, have been found fossils dating back to around 300 millions of years ago within metamorphic rocks coming from the earth’s mantle. Making the discovery, published in a study in the journal Naturewas a team of researchers from the Universities of Turin and Perugia. Fossils, which consist pollen, spores and microscopic marine ...

Who was Jasper Maskelyne, the war wizard who made the port of Alexandria "disappear".

Who was Jasper Maskelyne, the war wizard who made the port of Alexandria “disappear”.

Jasper Maskelyne, Public domain, via Wikimedia Commons The English illusionist Jasper Maskelyne it was famous in England in the 1930s. In 1939, at the outbreak of the Second World War, he decided to volunteer for the army to make his skills available to the English troops. camouflage and camouflage skills: according to some sources, thanks to him major war misdirections ...

What is the "rinse aid" in the dishwasher used for, how it works and the effects on health

What is the “rinse aid” in the dishwasher used for, how it works and the effects on health

Use one dishwasheran appliance owned by almost 40% of Italian families, is a common gesture for many Italians, an increasingly appreciated help in household chores and which also allows us to reduce water consumption daily. The dishwasher, in addition to water and soap, uses an additional ingredient, unknown to those who wash their dishes by hand, to try to improve ...

Because women's dresses almost never have pockets

Because women’s dresses almost never have pockets

The missing pockets in women’s clothes they are a topic that is much discussed among women, and if they are almost never found in trousers for sale there is one cause, and it is very simple: patriarchal machismo which has also dictated the law in terms of fashion. The absence of pockets, or their reduction to small decorative ornaments that ...

Where did the idea of ​​the "evil eye" come from and why we still believe in it today

Where did the idea of ​​the “evil eye” come from and why we still believe in it today

The “evil eye” is one of popular beliefs more widespread and resistant to time. This is not a local phenomenon, but a universal imagination that crosses continents, religions and systems of thought. From Mesopotamia to the Mediterranean, from Africa to Latin America, the eye was a symbol of vital energy and protection, but also of envy and danger. Today, despite ...