A diode is an electronic device with two electrodes. In the obsolescent thermionic diode a heated cathode emits electrons, which flow across the intervening vacuum to the anode when a positive potential is applied to it. The device permits flow of current in one direction only as a negative potential applied to the anode repels […]
The protein “MIPS” changes its internal structure when it becomes active. Its disordered active centre becomes a defined structure with special functions. The protein plays a key role in the production of inositol, which is also known as vitamin B8, and fulfils important tasks in the body. A team of researchers has succeeded for the […]
In my past entry I commented on the problems that Angela Potochnik’s Idealization and the Aims of Science contains regarding her analysis of idealization. Now I will look at the question of truth. My main argument is that neither the widespread use of blatant falsities in science, nor the existence of other goals different from […]
Catalysis in industry is often driven by empirical investigations and, eventually, by unexpected discoveries. Frequently, the scientific understanding of the process takes much longer to develop. Ideally, it would be preferable to reverse this timeline, where scientific insights precede application. Nonetheless, even when the scientific explanation takes more time, a deep understanding of the underlying […]
Author: Ramón Muñoz-Chápuli has been Professor of Animal Biology in the University of Málaga until his retirement. He has investigated for forty years in the fields of developmental biology and animal evolution. Lungfish (Dipnoi) are fascinating animals. Despite having gills, they can breathe atmospheric air thanks to a pair of lungs. Their geographic distribution aligns […]
Liquid crystals are all around us, from cell phone screens and video game consoles to car dashboards and medical devices. Run an electric current through liquid crystal displays (LCDs) and they generate colours, thanks to the unique properties of these fluids: rearrange their shape, and they reflect different wavelengths of light. As the lab of […]
A strange seismological signal that persisted for nine days in 2023 explained Melting glacial ice set off a cascade of events in Greenland in September, ending in tsunami waves bouncing back and forth in a fjord for nine days, with waves reaching heights of 110 meters. The research describes the ice melt triggering a landslide […]
Chromatin is a complex of DNA and histone, a protein, in the nucleus of a cell. One of the main functions of chromatin is to help DNA packing. Cellular phenotypic heterogeneity is a key determinant of many biological functions; yet, it is still not clear whether it stems from the modifications of the chromatin structure […]
What would happen if humans dried out the Mediterranean sea, turning it into a giant salt lake? Would its wildlife survive, and if so, how long would it take to recover? These may seem like wildly theoretical questions, but not for Herman Sörgel, a Bavarian architect who dedicated much of his life to this exact […]