During the last decade, neurodegenerative diseases have often been described as fires spreading silently from one neuron to another. We knew that misfolded proteins such as alpha‑synuclein could travel across neural circuits, igniting new pathological hotspots along the way. What we did not know is that, behind the scenes, astrocytes —those tireless caretakers of the […]
Chemistry • DIPC Biochemistry • Evolution • Geosciences • Materials
The classic chemical garden experiment is a staple of introductory chemistry, where colorful, plant-like structures sprout from metal salt crystals dropped into a solution of sodium silicate. While these vibrant tubes look like biological life, they are entirely inorganic, driven by the physics of osmosis and the chemistry of precipitation. For decades, scientists have admired […]
Author: Jordi Diaz Marcos, CCiTUB , Universitat de Barcelona As good citizens, we diligently fill the recycling bins provided by our local authorities with all manner of plastic trays, boxes, bottles and bags. But as these bins fill up quicker and quicker each week, an awkward question arises: is all this effort actually doing any […]
Imagine cooling a liquid so fast it turns into glass: a solid that’s jumbled inside, unlike neat crystal lattices. In 1948, Walter Kauzmann noticed a puzzle. As liquids cool, their entropy (a measure of disorder) drops faster than in crystals. Below a certain temperature, a supercooled liquid would have less entropy than the crystal, implying […]
Have you ever wondered how your ears can pick up the faintest whisper yet also handle loud music without damage? Scientists at Rockefeller University have achieved a remarkable feat : they kept a tiny piece of cochlea alive and working outside the body, allowing them to witness the hearing process in unprecedented detail. Building a […]
When we peel a crystal down to its very last layer, the physics governing its behavior undergoes a radical shift. This transition from the bulk (three-dimensional) to the two-dimensional limit is where some of the most exotic phenomena in condensed matter physics emerge. Among these, Titanium Diselenide, or TiSe₂, has long fascinated researchers because of […]
Author: Steven Gillespie, Senior Lecturer in Clinical Psychology, University of Liverpool Psychopaths might account for only about 1% of the general population, but they account for a disproportionate share of violent crime. Distinct from other conditions like sociopathy and antisocial personality disorder, psychopaths tend to show traits such as an absence of remorse or guilt […]
Traditional chemistry textbooks present a tidy picture: Atoms in molecules occupy fixed positions, connected by rigid rods. A molecule such as formic acid (methanoic acid, HCOOH) is imagined as two-dimensional—flat as a sheet of paper. But quantum physics tells a different story. In reality, nature resists rigidity and forces even the simplest structures into the […]
We finish this series with the most influential author of our trio (together with Bacon and Descartes) in shaping the scientific method: the Italian Galileo Galilei, who was also, not coincidentally, the most brilliant and prolific scientist of the three. He shared with Descartes the ambition of reducing the phenomena to be investigated to a […]
When we look at the night sky, we see a scattered collection of stars and galaxies, but to an astrophysicist, these are merely the glowing foam on the crest of a much deeper, invisible ocean. The vast majority of the matter in our universe is dark matter, a substance that does not emit, absorb, or […]