Ecology

How many submarines does Italy have: from the “Delfino” submarine to today's Navy fleet

How many submarines does Italy have: from the “Delfino” submarine to today’s Navy fleet

There Italian Navy currently has 8 submarines in service: the national fleet is made up of 4 units of the “Sauro class” and 4 of the “Todaro class”. However, “underwater boats” have always been “submarines” before and “submarines” then they captured the imagination of the general public and, at the same time, thanks also to the results obtained during several ...

The era of the athlete connected with wearables: what they are and what they are for

The era of the athlete connected with wearables: what they are and what they are for

Generated with AI Today sport is experiencing a silent revolution dictated by continuous technological evolution. The laboratory goes from being a physical place to a “second skin” to wear. The Polytechnic of Milan is at the center of projects that drive this transition and at the event Winter Sports Techthe professor Giuseppe Andreoni – Teacher of Industrial design studio for ...

What does “Supercalifragilisticexpialidocious” mean and who invented the Mary Poppins song

What does “Supercalifragilisticexpialidocious” mean and who invented the Mary Poppins song

“Supercalifragilisticexpialidocious” (in English Supercalifragilisticexpialidocious) is a made-up word of 33 lettersfamous for being the protagonist of the most iconic song – written by the Sherman brothers – of the film 1964 Disney Mary Poppins. The term, apparently meaningless, is actually synonymous with something wonderful, surprising, extraordinary – just like the magical world created by Walt Disney. The word can be ...

The trick of making objects hang on the wall with friction really works - here's why

The trick of making objects hang on the wall with friction really works – here’s why

You know those videos that every now and then go viral on social media and show a trick in which someone rubs some objects (pens, remote controls, pencils) with decision and speed and these, in an apparently magical way, they remain attached to the wall overcoming the force of gravity? Well, unlike many things that go around on social media, ...

The deepest emission of gas hydrates on the planet discovered in the Greenland Sea: why it is important

The deepest emission of gas hydrates on the planet discovered in the Greenland Sea: why it is important

During the recent international research expedition Ocean Census Arctic Deep – EXTREME24were discovered on Molloy Ridgean underwater ridge in the Greenland Sea, the deepest gas hydrate emissions (mainly methane) known so far. They originate around 3640 m depths below sea level and are associated with conical deposits known as Freya Hydrate Mounds. The discovery published on Nature Communications is very ...

The Niscemi landslide continues, new failures in the red zone: the before and after video

The Niscemi landslide continues, new failures in the red zone: the before and after video

The comparison of Niscemi before the landslide (left) and after the landslide (right). Credit: Fire Brigade There Niscemi landslide continues to advance: the town in the province of Caltanissettain Sicily, is still in the midst of the emergency after the landslide event that began last January 25th, which led to over 1,500 displaced. In fact, over the last few hours, ...

Who is the Blackbird, symbol of the coldest days of the year?

Who is the Blackbird, symbol of the coldest days of the year?

The last three days of January are known as “the days of the Blackbird” and there are many traditions and legends linked to this period: for this reason it comes naturally to ask who the blackbird is. In a few words one could simply say that the blackbird is nothing other than the female of the blackbirdbut in reality there ...

What does "Candlemas Day" mean: origins and proverbs of the celebration of February 2nd

What does “Candlemas Day” mean: origins and proverbs of the celebration of February 2nd

There Candlemas celebrates, through the blessing of candles in churches, the presentation of Jesus at the templewhich took place, according to tradition, 40 days after birth. This is why it is celebrated 40 days after Christmas, that is February 2. Lighting candles, in this tradition, is a metaphor for the revelation of Jesus. The occasion also celebrates another event, the ...