Ecology

The Greenland shark lives over 300 years with a diseased heart: the study on its resilience

The Greenland shark lives over 300 years with a diseased heart: the study on its resilience

Generated with AI for illustrative purposes only. The Somniosus microcephalusit Greenland sharkis the longest-lived vertebrate known on Earth capable of swimming in the freezing waters of the North Atlantic and the Arctic Ocean for 300 years. A feature that fascinates researchers in biology of aging. How does a heart beat for centuries? It must be a healthy heart, free of ...

The shopping cart was invented by trader Goldman in 1937, but no one wanted to use it

The shopping cart was invented by trader Goldman in 1937, but no one wanted to use it

The shopping cart it is one of the most widespread objects in the world, which we now use without even thinking about it. It was invented in 1937 by Sylvan Nathan Goldman for its supermarkets Humpty Dumpty in Oklahoma City and improved by Orla Watsonwhich added the basket and rear opening. The history of this object is also the history ...

The sky of December 2025, the last astronomical events of the year between the Supermoon and the Geminids

Why the water of comet 3I/ATLAS is so different from ours: the discovery of the ALMA radio telescope

Amateur photo of 3I/ATLAS taken with a Celestron EdgeHD 800 telescope on November 16. Credits: Satoru Murata, Wikimedia Commons. There interstellar comet 3I/ATLASdiscovered in July 2025 and already at the center of a media case due to the statements of Avi Loeb on its alleged alien origin, widely denied by the scientific community, continues to prove of enormous scientific interest ...

The "fake snow" in spring is not pollen, but paps from poplars: they do not cause allergies

The “fake snow” in spring is not pollen, but paps from poplars: they do not cause allergies

The streets and parks of many Italian cities are invaded these days by “spring snow”, those white puffs that resemble cotton that fly out of control. But what is it? Often confused with “pollens” and called “poplars” or “pioppini”, they actually are pappi and are used to transport with the wind poplar seedsa very widespread plant in the Po Valley. ...

Why wavy lines appear in photos of PC screens and what is the moiré effect

Why wavy lines appear in photos of PC screens and what is the moiré effect

The arrows and yellow curved lines indicate the obvious moiré effect present in the image. By pointing our smartphone camera at the computer or television screen, they will almost inevitably appear strange streaks or waves in the captured image. But why does this happen? For a very specific phenomenon, known as moiré effect. And no, it is not due to ...

High school students are not as anxious as psychiatric patients of the 1950s: we explain Twenge's study

High school students are not as anxious as psychiatric patients of the 1950s: we explain Twenge’s study

In recent days, the news has been circulating on social media and various information sites that today’s high school students have levels of anxiety comparable to those of patients admitted to mental asylums in the 1950s. This statement, however, is incorrect: it derives from an excessive simplification of a study published by the psychologist J.M. Twengea meta-analysis from which it ...

Salaries in Italy are stable compared to 1990 net of inflation: OECD and Istat data

Salaries in Italy are stable compared to 1990 net of inflation: OECD and Istat data

Those who work in Italy today earn, in real terms, less than they did in 1990. It is not a sensation, and it does not depend only on the inflation of recent years. This is data certified by the OECD, confirmed by Istat and reiterated by the Bank of Italy: Italian wages have been stagnant for over thirty yearsin a ...