Ecology

The history of the island of Tabarka in Tunisia, when the Genoese migrated for coral

The history of the island of Tabarka in Tunisia, when the Genoese migrated for coral

In the mid-sixteenth century a group of Genoese moved to the island of Tabarkaa short distance from the coast of Tunisia, to cultivate coral and control the trade route. Before them, for four hundred years, the island had been the territory of the Pisans. At the end of the eighteenth century, the Genoese left Tabarka because the coral had run ...

Which came first, the combustion engine or the electric one?

Which came first, the combustion engine or the electric one?

Image edited with AI. In the collective imagination the Electric cars are an extremely recent technologybut historically the electric motor arrived much before the thermal one. The correct timeline is in fact this: invention of the electric motor, discovery of the first productive oil field, invention of the internal combustion engine. 1832, Robert Anderson invents the “Electric Carriage” The central ...

All the colors of animal blood, from blue to green: which ones are the most unusual

All the colors of animal blood, from blue to green: which ones are the most unusual

Generated with AI. An ancient saying that is still very famous, widespread in various parts of Europe, claims that people of noble origin have the “blue blood“, different from that of normal people. If the origin of this adage has typically human and imaginative roots, In nature there really are animals with blue bloodlike the horseshoe crab, a characteristic common ...

There's a Soviet ghost town in Svalbard - here's what it looks like today

There’s a Soviet ghost town in Svalbard – here’s what it looks like today

Source By Zairon – Own work, CC BY–SA 4.0, https://commons.wikimedia.org/w/index.php?curid=52387844 Pyramiden is a former mining settlement dating back to the Soviet era, today considered one of the ghost town best preserved in the world. Located on the island of Spitsbergen, the only inhabited island of the Svalbard islands, about 1000 km from the North Pole, it is a place suspended ...

How tall is the turtle? The solution to the riddle that drove the web crazy

How tall is the turtle? The solution to the riddle that drove the web crazy

THE’Turtle height riddle went around the web driving everyone crazy. What is your solution? We see it in this article The situation is this: a rThe bowl with a turtle on it is 230 cm highwhile the distance between the turtle’s head and the top of the rock is 200 cm. So how tall is the turtle? The vast majority ...

December 8, 2025, how many °C was there today in previous years? Let's compare temperatures

December 8, 2025, how many °C was there today in previous years? Let’s compare temperatures

Many times we find ourselves wondering “But was it that cold last year?” or “But was it this hot in other years?”. These are questions that can be answered by searching through the meteorological archives, and that’s what we did: we bring you the temperatures ofDecember 8 scheduled for Milan, Rome, Naples And Palermocompared with those of the same date ...

Milgram's experiment, how willing are we to obey authority even against our morals?

Milgram’s experiment, how willing are we to obey authority even against our morals?

Would we really be willing to go against our morals if an authority ordered us to do so? That’s what he tried to understand Stanley Milgram through an experiment. His clearly affirmative answer to this question, however, has raised many doubts in other scholars who over time have discovered methodological flaws and publications of partial results. In short, according to ...

Is lemon a good disinfectant? The true effects and properties

Is lemon a good disinfectant? The true effects and properties

Many see lemon juice as a natural super-disinfectantbut is it really like that? Molecules like the limonene or the linalool, are present in large quantities in the juice, which also contains vitamin C, and especially in theessential oil of this citrus fruit and have been shown to damage bacteria and inhibit their growth. But there is an even more relevant ...