Author: Rachel Gordon, Massachusetts Institute of Technology In 1994, Florida jewelry designer Diana Duyser discovered what she believed to be the Virgin Mary’s image in a grilled cheese sandwich, which she preserved and later auctioned for $28,000. But how much do we really understand about pareidolia, the phenomenon of seeing faces and patterns in objects […]
Many large mammals have lost genetic diversity, often thanks to the actions of people shrinking their populations. The implications can be severe because without genetic diversity, a population does not have a “genetic database” to fall back on to adapt to environmental change. The Iberian lynx (Lynx pardinus) is no stranger to this reduction in […]
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 […]
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 […]
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 […]
Author: Leah Burrows, Harvard John A. Paulson School of Engineering and Applied Sciences The earliest blacksmiths in the Bronze and Iron Ages figured out that when they deformed metal through bending or hammering, it became stronger. This process, known as work or strain hardening, is still used widely in metallurgy and manufacturing today to increase […]