Ecology

An artificial island perhaps older than Stonehenge discovered in Scotland: it is a 5000-year-old crannog

An artificial island perhaps older than Stonehenge discovered in Scotland: it is a 5000-year-old crannog

Overview of Loch Bhorgastail, with the crannog. Credit: Blankshein et al. In the Loch Bhorgastailon the Isle of Lewis in the Outer Hebrides, in Scotlandthere is a small island that at first glance seems like a natural accumulation of stones. It is instead a so-called “crannog“, aartificial island built by man beyond 5,000 years agoIn the Neolithic. The archaeologists ofUniversity ...

All the gold in the world: how much we have mined and where it is today

All the gold in the world: how much we have mined and where it is today

About 219,890 tons of gold were extracted throughout the entire history of humanitystarting from beyond 6000 years ago until today. Of these, beyond the80% it has been undermined over the last century. If you stacked every single coin, jewel, ingot or any other form of gold, you would get a cube with a side of approximately 22 meters. Gold has ...

The geometric magic of the Noperthedron: why this figure cannot pass through

The geometric magic of the Noperthedron: why this figure cannot pass through

There is a new geometric figure, the Noperthedron, a convex polyhedron that defies the laws of geometry because it cannot pass inside itself. In mathematics, it is said that the Nopethedron has disproved the Rupert’s propertywhich we will see shortly. But what does it mean that it can’t pass through? Let’s try to understand it with an example. Let’s imagine ...

When nodding means “no”: why do gestures sometimes deceive us?

When nodding means “no”: why do gestures sometimes deceive us?

There human communication it is a complex interweaving between words and the gestures of body. Much of what we transmit, in fact, does not pass through the voice, but through postures, head movementsfrom the hands and of body entire. However, what it may seem spontaneous and universal in a culture it can be interpreted completely different in another. In general, ...

Burps are caused by the noisy expulsion of excess air in the stomach: what the Cleveland Clinic says

Burps are caused by the noisy expulsion of excess air in the stomach: what the Cleveland Clinic says

Generated with AI for illustrative purposes only. The burp or belchingto use the medical term, is often considered an embarrassing gesture by social convention, but it is actually a shared bodily mechanism. As the Humanitas clinical institute explains, burping consists of the noisy emission of gas from the stomach through the mouth. This is a completely physiological mechanism that our ...

It looks like Claude's AI site, but it's a fake: how to recognize the hacking attempt

It looks like Claude’s AI site, but it’s a fake: how to recognize the hacking attempt

Screenshot of the fake site that imitates the official Claude download page. Credit: Malwarebytes. Claudethe artificial intelligence of Anthropicis becoming more and more popular. According to some estimates, it reached 290 million monthly visits. This has made the model a very attractive target for cybercriminals. Security researchers from Malwarebytes have identified a counterfeit website that closely imitates the official Claude ...