Humanities & Social Sciences • Science • Technology • Weekly Selection
Ancient grooves may be evidence of dinosaur mating ritual Four sites found in Colorado exhibit fossilized grooves that may have been made by dinosaurs doing a bird-like mating dance more than 100 million years ago. Scientists say the gouges could have been made by theropods performing a mating ritual common to modern birds. The Washington […]
Phragmosis is a method by which an animal defends itself in its burrow by using its own body as a barrier. This term was coined by W.M. Wheeler in 1927 to describe a cryptic defensive technique employed by arthropods that use specially modified body structures to block nest entrances. A well example is the mygalomorph […]
Electrical energy is now the dominant form of energy consumption in industrialized countries and is an essential element in the operation of many of the devices we use every day. For decades, one of the most poorly understood yet most practical properties of a piece of solid matter was its ability, or lack of ability […]
Bulldog ants ( Myrmecia pyriformis ) are the most dangerous ants on Earth. The name of these Australian native ants is due to the way they bite and hang off their victims using their mandibles: they sink their teeth and they keep gnawing at it. These mandibles were used by the Australian natives to temporarily […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Mystery of disappearing electrons may be solved A band of invisible meteor dust drifting to Earth may be behind the disappearance of electrons in the high atmosphere that’s had scientists baffled since the 1960s Electrons are produced high above Earth when the sun’s ultraviolet rays interact with atmospheric nitric oxide, but a big drop has […]
Unveiling the three-dimensional structure of proteins is one of the most useful strategies for understanding the molecular and cellular basis of human pathologies. Since proteins accomplish myriad cellular functions, but they are formed by combinations of only 20 different pieces, the way those pieces are coordinated is critical, and the tiniest difference can change forever […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
How information might be retrieved from a black hole There may be a way to retrieve a bit of information from inside a black hole. A team of physicists from the California Institute of Technology theorizes that the information can be gleaned by using Hawking radiation exiting the black hole and quantum teleportation. Science Crows […]
Recently, a new experiment has attracted a lot of attention. It was published in Nature and entitled as “Loophole-free Bell inequality violation using electron spins separated by 1.3 kilometres ” . Many scientific and non-scientific media took account of the results of the experiment and published short news with fancy titles as Quantum ‘spookiness’ passes […]
More than a hundred years have passed since the German physicist Alois Alzheimer associated the traits of dementia of one of her patients with morphological changes in her brain after her death. While we know a great deal about what today is known as Alzheimer’s disease, we still need to answer two fundamental questions: what […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Plesiosaurs swam ancient oceans like penguins Plesiosaurs swam much like penguins do, using their front flippers to propel themselves and their back ones to control their direction. How the ancient marine reptiles moved through water was unclear since its fossils were discovered about 200 years ago. Researchers developed a computer model based on a nearly […]