Previously it was believed that the material inside stars is mixed in a homogeneous and predictable way, bringing matter from deep inside the core to the surface and vice versa. Read more »

Capacitors are similar in a way to batteries, but have different construction and characteristics. Read more »

This is the recipe used by most commercials: put a hot babe near the product, everything from cars to pencils, and the men will buy it. Is it that easy? Read more »

In a press statement released yesterday, the aircraft manufacturer Boeing revealed that it had built the first airplane in the world running on power supplied by hydrogen-cell batteries. Read more »

The human skin contains millions of sweat glands, connected to the pores at the surface through tiny sweat ducts, which could reveal the emotional state of a person without making physical contact by Read more »

The Hawaii islands is the product of the volcanoes. Read more »

The Solar Dynamics Observatory is expected to become the next space device to monitor solar flares, sunspots and coronal mass ejections in order to make accurate predictions on solar weather. Read more »

Aztecs may be more famous for their bloody rituals, but they were one of the most advanced civilizations of America, with cities as larger as those of contemporaneous Europe, and formed perhaps the mo Read more »

Blue or almost black, slate-gray, golden or violet or fainted green. Our eye color depends on that of our parents or grandparents. This is one of the strictest genetically inherited traits. Read more »

It is one of the weirdest fish of the ocean: it has a human-like face, it sees binocularly (just like us) and it rather crawls into crevices than swims. Read more »