Ecology

The first cars were electric: their history and why they were abandoned for decades

The first cars were electric: their history and why they were abandoned for decades

The Bersey Cab electric taxi. Credit: London Science Museum It seems like a 21st century invention, yet theelectric car it’s almost as old as the car itself. At the end of the 19th century, before petrol dominated the streets, vehicles such as the electric taxi Bersey Cab they were already circulating around London and Ferdinand Porsche himself was designing advanced ...

What are Eureka moments and how the brain works when the brilliant idea arrives

What are Eureka moments and how the brain works when the brilliant idea arrives

It was 1951 when the astronomer William Wilson Morgan came out of the Yerkes observatory, after hours of calculations on star clusters. Looking up at the sky, he had a sudden intuition: the stars he was studying were not randomly distributed, but formed a spiral. In that instant he had “seen” the structure of the Milky Way. That moment of ...

How mandarin peels on the radiator make the house smell good and the differences with other citrus fruits

How mandarin peels on the radiator make the house smell good and the differences with other citrus fruits

Once peeled, the mandarin releases an intense aroma due to numerous volatile compounds. Among these prevail i terpeneshow limonene And linaloolresponsible respectively for the citrus and floral notes. These molecules spread rapidly in the air, stimulating the olfactory receptors and generating the typical tangerine smell. At home, when you place the peels on the radiator, heat accelerates the evaporation of ...

Immagine

The first social network was born in 1997: the story of SixDegrees

SixDegrees interface. Imagine being an Internet user browsing the Web in the late 1990s, when most people are still trying to understand what the Internet really is. Connections are slow, computers are cumbersome, and digital communication is mainly made up of emails and forums for nerds, passionate about the most disparate topics. The idea that the Internet could become a ...

How is the Mexican Dia de Los Muertos celebrated and what is its meaning

How is the Mexican Dia de Los Muertos celebrated and what is its meaning

The Día de los Muertosliterally “the day of the dead”, is one of the most emblematic holidays in Mexico, celebrated between November 1st and 2nd. Made increasingly famous and known by the Disney animated film, “Coco”, it is a joyful celebration of life and a tribute to deceased family memberswho are believed to temporarily return to the world of the ...

In Norway there are only 28: what are the stavkirker, the medieval wooden churches

In Norway there are only 28: what are the stavkirker, the medieval wooden churches

One of the 28 stavkirkers still present in Norway. Built entirely in wood more than 800 years ago, without the aid of nails, the stavkirker they are masterpieces of Norwegian ecclesiastical architecture. Built between the 12th and 14th centuries, after the country’s conversion to Christianity, until the 9th century dominated by the polytheistic paganism of the Vikingsthese medieval churches blend ...

The key mechanism for axolotl limb regeneration discovered: here's how it happens

The key mechanism for axolotl limb regeneration discovered: here’s how it happens

A group of biologists from the department of Harvard he amputated a limb from a axolotlthe Mexican salamander capable of perfectly regenerating legs, tail, heart and even parts of the brain, but what he discovered has pushed the boundaries of what was thought possible further. In the new study published on Cell Just this year, Jessica Whited’s team showed that ...

What is celebrated on All Saints' Day and why is November 1st called that in Italy?

What is celebrated on All Saints’ Day and why is November 1st called that in Italy?

All Saints’ Dayalso known as “All Saints”, is a holiday with which i Christians, Catholics and Orthodox, they celebrate saints for whom there is no specific day in the calendar. The festival, which occurs every year on November 1st, originates from cult of saintsattested since the first century AD and, to a more complete extent, since 4th centurywhen the veneration ...