Ecology

tetrapodi

Tetrapods, what are these concrete structures along the coasts and what are they for?

THE tetrapods They are hydraulic engineering works intended for the coastal defensemade of concrete, which act as breakwaters and are characterised by various geometric shapes which allow for optimization of hydraulic and structural performance. They can be partially submerged and have, specifically, the function of protecting the shore profile from the unwanted effects of the sea in adverse weather conditions. ...

talaiot maiorca minorca isole baleari nuraghi

Are there nuraghi in Mallorca and Menorca too? What are the “talaiot” of the Balearic Islands

THE talaiotfrom the Catalan “small tower”, are the prehistoric structures (dating back to 1200-1000 BC) most famous and particular of Majorca and above all Minorcathe two largest islands of the archipelago of Balearic Islandsin the Mediterranean Sea off the coast of Spain. These are structures “cyclopean” (term used to indicate ancient structures built with dry stonesince in ancient times they ...

Immagine

What Would Earth Look Like Without Oceans? NASA’s Reconstruction

What the Earth’s surface would look like without water. Credit: NASA’s Scientific Visualization Studio More than 70% of the Earth’s surface is covered by waterfall: but what would our planet look like if this disappeared? NASA has provided an answer with an ad hoc model that illustrates the progressive disappearance of the oceans And the emergence of valleys, volcanoes and ...

evoluzione e storia scuola

How education has changed from its origins in ancient times to the present day

There school It has existed since approximately 4th millennium BCbut originally it was a very different institution from the current one: in fact, it served to educate the small minority of the population who was supposed to take care of theState administration. Over the centuries, many educational systems have been established in the world, different according to civilization, but only ...

bicicletta leonardo

Did Leonardo Da Vinci Invent the First Bicycle? No, Let’s Get It Straight

In the second half of the 90s the news has been circulating that Leonardo DaVinciinside his Atlantic Codewould have created the design of the first bicycle model already in the sixteenth century, therefore 3 centuries before the invention of the bicycle. During a restoration of the code on sheet 133 a drawing has actually been found that seems to represent ...

Immagine

Underwater landslide mapped in Atlantic: significance for risks to Internet cables

The submarine landslide in the Atlantic Ocean 60,000 years ago. Credit: Dr. Christoph Bottner, Aarhus University. The researchers of theUniversity of Liverpool they managed to map and reconstruct the evolution of a giant underwater landslide happened about 60,000 years ago in the’Atlantic Ocean off the northwest coast of Africa. The landslide, with a volume of 150 km3has traveled 2000 km ...

freddo fa dimagrire

But is it true that cold makes you lose weight? Yes, but not appreciably.

You may have heard that cold weather makes you lose weight. In reality, as often happens with clichés related to health, this is not exactly the case. Several studies confirm that when we spend a lot of time in low-temperature environments, the body activates Brown Adipose Tissue (BAT) which increases energy expenditure using fat and glucose to produce heat (thermogenesis) ...

Jago scolpire il marmo

Sculptor Jago explains how to sculpt a 4-meter marble statue: the steps

There sculpture It is one of the oldest art forms, as we all know. But from the point of view technician, How is a marble statue made? To find out, we went to Naples to the studios of Iagoone of the most famous contemporary Italian artists and sculptors in the world, to witness the creation of the David, a statue ...

cemento fibrorinforzato

Fiber Reinforced Concretes: What They Are, What They Are Used For, and How They Are Different from Eternit

The fiber reinforced concrete (FCR) It is a particular type of concrete that contains inside special fibres which improve the overall mechanical characteristics, as well as reduce the amount of pollutants released during the production of this material. It is therefore a mix of innovative materials that aims to replace, at least in part, the reinforced concrete. But what types ...