Tag Archives: Canary Islands

Sandstone


Sandstone

Sandstone is a sedimentary rock formed when

English: A classification chart of sedimentary...

English: A classification chart of sedimentary rocks. (Photo credit: Wikipedia)

grains of sand have been cemented together by a material such as silica, iron oxide, or calcium carbonate. It usually consists mainly of quartz and can vary in color from yellow or red to gray or brown. Sandstone’s porous nature makes it ideal for aquifers, and it is also widely used in construction and industry. Why is sandstone commonly used for decorative features in buildings? More… Discuss

this pressed for your curious mind: 13 of the Most Amazing Things Discovered in Space This Year | WIRED (I thought they found Santa too, or did they?)


In April, astronomers discovered the first Earth-size planet within a star’s habitable zone, the region where liquid water can exist. This artist’s concept shows the planet, dubbed Kepler-186f, which is 1.1 times the size of Earth. The ultimate goal is to find another planet just like Earth, and this one—although more like a cousin than a twin—is close. NASA Ames/SETI Institute/JPL-Caltech

Scientists discovered some pretty amazing things in space this year. There were yet more planets, including the first Earth-like one in a star’s habitable zone. Astronomers found what might be a black-hole triplet, stars in the midst of merging into one giant one, and a star made of diamond.

More Best of 2014:

The Best and Worst of Science in 2014

These Are Our Favorite Maps of the Year

The Best Science Visualizations of 2014

But some of the most exciting things were found right in our own solar system. These discoveries include the first rings ever seen around an asteroid, plumes of water vapor spewing out from the dwarf planet Ceres, a disintegrating asteroid, and what appears to be a new dwarf planet billions of miles away. Oh, and we landed on a comet for the first time. Here are some of the most fantastic

via 13 of the Most Amazing Things Discovered in Space This Year | WIRED.

this day in the yesteryear: Columbus Makes Landfall in the Caribbean (1492)


Columbus Makes Landfall in the Caribbean (1492)

Believing that Asia could be reached by traveling westward, Columbus’s three-ship expedition set sail from Palos, Spain, in 1492. After a stop at the Canary Islands, Columbus sailed due west, turning in a more southerly direction after about a month at sea. Shortly thereafter, Columbus quelled a small mutiny, and, on October 12, landed at an island in the Bahamas. Columbus also explored nearby Cuba and Hispaniola before returning to Spain. How many ships set sail with his second expedition? More… Discuss