Ecology

Remove rust from surfaces effectively: mechanical and chemical remedies

Remove rust from surfaces effectively: mechanical and chemical remedies

When iron reacts with oxygen, a series of compounds are formed that accumulate on the metal surface, giving rise to what we know as rust. The best home methods for eliminating it include mechanical removal via abrasion and the use of chemical-based reagents acidssuch as citric and acetic acid present in lemon juice and in thewhite vinegarwhich interact with rust ...

Japan is aiming for solar energy from space: how it works and why it would be a turning point

Japan is aiming for solar energy from space: how it works and why it would be a turning point

Here is the challenge that the Japan decided to tackle: transform an idea of ​​Peter Glaser, which seemed too expensive and complex in 1968, into a concrete technology, capable of providing clean and continuous energy to the Earth. As? Capturing the sunlight not with the panels on the roof of the house, but directly into spacewhere the Sun never sets ...

Elderly and digital, a challenge in the use of the Internet: only 31.4% of over 75s use it

Elderly and digital, a challenge in the use of the Internet: only 31.4% of over 75s use it

Civic participation does not automatically grow with digital. This is shown by ISTAT data on Permanent population census 2024: 87.3% of older families responded to the questionnaire, compared to 75% of younger ones. A fact that denies the idea of ​​participation driven above all by the new generations. The difference is not so much in the willingness to participate, but ...

The skull of the ancient marine reptile found in the Bergamo Prealps: fossil similar to a turtle

The skull of the ancient marine reptile found in the Bergamo Prealps: fossil similar to a turtle

Generated with AI On the Italian Journal of Paleontology and Stratigraphy the discovery of new fossil remains on the Bergamo Alpsbelonging to Macroplacus raeticusa marine reptile lived approx 200 million years ago. This species, until now, was known only through fossils found in the Bavarian Alps. The fossil was found by Pio Carlo Brizzi in 2010 in the locality of ...

Why was water a strategic resource in medieval castles?

Why was water a strategic resource in medieval castles?

Image generated with AI. When we think of medieval castles, we imagine them as impregnable fortresses, perched on rocky spurs and protected by mighty walls. But behind this apparent solidity was hidden a crucial question: the water resources management. How was the water supply guaranteed in structures often built far from rivers and aquifers? And how did the inhabitants of ...

What is the difference between .com, .org and .net domains and what are they for?

What is the difference between .com, .org and .net domains and what are they for?

When we type an address into the browser search bar, we usually don’t pay too much attention to the three final letters that follow the period (i.e. “com”, “org” or “net”, as the case may be), and which make up the domain of many websites. What do they mean and what are the differences between them? Let’s start immediately by ...

The science behind ice hockey: the rules of the most fast-paced sport of the 2026 Olympics

The science behind ice hockey: the rules of the most fast-paced sport of the 2026 Olympics

Generated with AI THE’ice hockey it is one of the most intense and fascinating sports we will see at Winter Olympic Games. Speed, physical contact and tactics meet on a rectangular sheet of ice that hides the laws of physics and technical dynamics that make this sport unique. At the Milan-Cortina 2026 Olympics, hockey – on stage at the Milan ...

How cats' fur changes in winter and why they become more "furry"

How cats’ fur changes in winter and why they become more “furry”

Anyone who has a cat knows this – during the winter, their hair increases in mass and volumeparticularly in cat breeds with longer, thicker hair. This is a normal process which allows the cat to replace old and damaged hair and replace them with new ones when the seasons change, and is activated by changes in living conditions lighting And ...