Ecology

What are TAN and APR and what is the difference: a simple explanation

What are TAN and APR and what is the difference: a simple explanation

Whenever we need to ask for a financing to buy something in installments, TAN and APR indicate the interest rates, i.e. the cost of the loan we are contracting. The TAN (Nominal Annual Rate) is the actual interest cost which must be paid on the sum lent, while the APR (Global Effective Annual Rate) is the total and real cost ...

Why do Japanese people make the V (or peace) finger sign in photos?

Why do Japanese people make the V (or peace) finger sign in photos?

Taking a photo in Japan often means showing two fingers at “V” (with index and middle fingers raised with palm facing outwards): the famous sign of peace. This gesture, born in the 1960s, but widespread from Tokyo to Osaka especially since the 1980s, draws inspiration from the Western “victory” sign which later spread in pop culture to indicate friendship, joy ...

USA and Israel attack Iran, the Islamic country counterattacks US bases: the reasons for the attack

USA and Israel attack Iran, the Islamic country counterattacks US bases: the reasons for the attack

The February 28, 2026around 7:30 local time, the US and Israel launched ajoint offensive to Iran, with at least 30 attacks by air and sea. The operation, called Roaring Lion (“Roaring Lion”), would have second Axios as targets the leaders of the Iranian military apparatus but also the supreme leader Al Khamenei and the President Masoud Pezeshkian. Numerous missiles caused ...

Particle accelerators cannot create black holes: let's debunk the hoax

Particle accelerators cannot create black holes: let’s debunk the hoax

Every time a great particle accelerator comes into operation, a question that fascinates and scares returns: “What if it created a black hole?It’s an idea that has been around for years, fueled by films and science fiction, but which has no basis in real physics. Understanding why helps us distinguish between what is possible and what is just imagination. Because ...

Over 97% of cars in the world will be digitally connected by 2027: risks and solutions

Over 97% of cars in the world will be digitally connected by 2027: risks and solutions

Image generated with AI. According to some projections, in 2027 beyond 97% of cars sold globally will be digitally connected. This is an epochal change, because it transforms the very concept of mobility: each of these vehicles becomes a network node, capable of exchanging data, updating remotely, communicating with energy systems and, in the future, becoming increasingly integrated with autonomous ...

What is the difference between native praying mantis and Asian "alien" mantis and how to recognize them

What is the difference between native praying mantis and Asian “alien” mantis and how to recognize them

Image generated with AI. A recent study published in Journal of Orthoptera Research analyzes the impact of two species of mantises also arrived in Italy from Asia: la Asian giant mantis (Hierodula tenuidentata) and the Indochinese giant mantis (Hierodula patellifera). The entomologists who authored the research demonstrated that the two Asian mantises have a remarkable reproductive capacity, compete with praying ...

What is bisphenol A from cans and why Europe has decided to ban it

What is bisphenol A from cans and why Europe has decided to ban it

The debate on the use of the bisphenol A (BPA) in products in contact with foods and drinksafter Professor Matteo Bassetti (director of the Infectious Diseases Clinic of the San Martino Polyclinic in Genoa) returned to discuss the topic in a post on Facebook. The European Union, in reality, had already prohibited the use of this substance in December 2024: ...

Origin and geological history of Italy: a 250 million year long journey

Origin and geological history of Italy: a 250 million year long journey

Why does Italy have such a peculiar shape? Why are there fossils of marine animals in the Alps? Italy has not always existed: it is the result of the very long action of tectonic forces that date back to about 250 million years ago, when the supercontinent Pangea began to fragment. It all started with a microplate that geologists call ...