Ecology

The 10 heaviest animals in the world: the ranking between sea and land

The 10 heaviest animals in the world: the ranking between sea and land

To equal the weight of a African elephant we would have to put about 130 people on a huge scale (average weight 62 kg). Yet we wouldn’t even be on the podium of the heaviest animals on the planet. To understand who the giants that populate our planet are, we must look at them mainland but above all in oceanswhere ...

Are there maps that lie? From ghost islands to false toponyms and intentional cartographic errors

Are there maps that lie? From ghost islands to false toponyms and intentional cartographic errors

Draw a map it does not exclusively mean describing the world: it means choose what to show, what to simplify and what to hide. For this reason, for centuries, maps have not only been tools for orientation, but also weapons, deception and instruments of power. Sometimes cartographers made mistakes by mistake, but very often, they lied on purpose. Imagine following ...

Convert miles to km with the Fibonacci numbers trick

Convert miles to km with the Fibonacci numbers trick

When traveling in countries such as the UK or USA you may come across distances, or speed limits, expressed in miles instead of in kilometers, and sometimes it can be useful to have a quick method to convert from miles to km and vice versa. In these cases, the Fibonacci number trick with which to convert from miles to km ...

It's true that 21 days are enough to create a habit: let's dispel the false myth

It’s true that 21 days are enough to create a habit: let’s dispel the false myth

There is a promise that comes back cyclically when it comes to personal change: resist for twenty-one days and then everything becomes easy. The idea is seductive because it offers a clear boundary between effort and lightness, between “I’m trying” and “it comes naturally to me now”. But it’s a false myth: when scientific research observes how habits are really ...

How many aircraft carriers does Italy have? From historic ships to those in service today in the Navy

How many aircraft carriers does Italy have? From historic ships to those in service today in the Navy

The Italian aircraft carrier Cavour, which entered service in 2009. Credit: Ministry of Defence, Navy From the moment they made their debut during the First World War, the aircraft carrier have gradually established themselves as a irreplaceable element of naval strategies of all those countries that, from time to time, have had the technical capabilities and political will–strategic to deploy ...

Does the foil "trick" to keep the freezer from frosting work?

Does the foil “trick” to keep the freezer from frosting work?

Have you ever heard of the tinfoil trick In the freezer to prevent the annoying one from forming frost on the walls? According to this “method”, lining the walls and drawers of the freezer with aluminum foil would cause the ice to deposit only on the foil, thus keeping the appliance clean and more efficient. But works Really? Spoilers: No, ...

The science behind ski mountaineering, data analysis and monitoring in the new Olympic sport

The science behind ski mountaineering, data analysis and monitoring in the new Olympic sport

Generated with AI. The ski mountaineering will make its debut as an Olympic sport in Milan-Cortina 2026. We had the opportunity, during the event Winter Sports Techto attend a unique demonstration that transformed the Aula Magna of the Polytechnic University of Milan into a research laboratory. The demonstration session was described by Professor Carlo Gorla – professor of the Department ...

The longest sea bridge in the world is the 55 km Hong Kong Zhuhai Macao Bridge in China: how it is made

The longest sea bridge in the world is the 55 km Hong Kong Zhuhai Macao Bridge in China: how it is made

The Hong Kong-Zhuhai-Macau Bridge (HZMB), in China, is the longest sea bridge in the world, stretching for approximately 55kmconnecting these three important cities. The work includes an underwater tunnel and two artificial islands to manage maritime and air traffic. To build this colossal infrastructure, which represents a milestone in civil engineering, it took approx 9 years of work and an ...

What are the 8 largest and most powerful land armies in the world: the ranking

What are the 8 largest and most powerful land armies in the world: the ranking

In the historical era in which we live, unfortunately characterized by the multiplication of armed conflictsknowledge has once again become of primary importance classify in an ordered hierarchy land armies and the armed forces of individual countries. In particular the great powers they have this need, in order to understand who could emerge victorious in a direct military confrontation. In ...