Arid and semi-arid ecosystems occupy vast regions in many countries in the world. In these regions, edaphic and climatic conditions impose important restrictions on agriculture….
Read more
The birds-of-paradise are a charismatic, colorful family of birds found primarily on the island of New Guinea. The elaborate plumage of many species from this…
Read more
Metalloids are elements found between the metals and nonmetals on the periodic table of the elements. They are also called semimetals. Metalloids have properties that…
Read more
In addition to the seven continents, there are five oceans and: the Atlantic Ocean, the Arctic Ocean, the Pacific Ocean, the Indian ocean, and the…
Read more
What is the difference between a solvent and a solute? Both solvent and solute are parts of a solution. Solutions are mixtures of two or…
Read more
Over 4.5 billion years ago, our solar system formed from a giant molecular cloud that collapsed under its own tremendous gravity. The hot stew of…
Read more
What is energy? There are many different kinds of energy, kinetic energy, chemical energy, heat energy, and electromagnetic energy, but fundamentally all energy is the…
Read more
What is work in thermodynamics? This basic question is still debated nowadays, especially when dealing with small quantum systems. In 1824, Sadi Carnot defined work…
Read more
The Asian continental collage was formed by the assembly of several continental fragments through multiple subduction-accretion-collision processes. These prolonged tectonic cycles left their imprints on…
Read more
Can we “slice” a spiral arm into its components and order the slices? The Moon orbits around the Earth on a rough circle, the Earth…
Read more
Mobile phones have quickly become a fundamental part of our life and, thus, an important element of our culture. As a cultural object, the mobile…
Read more