Barringer Crater on Earth

Explanation: What happens when a meteor hits the ground? Usually nothing much, as most meteors are small, and indentations they make are soon eroded away. 49,000 years ago, however, a large meteor created Barringer Meteor Crater in Arizona, pictured above. Barringer is over a kilometer across. In 1920, it was the first feature on Earth to be recognized as an impact crater. Today, over 100 terrestrial impact craters have been identified. Recent computer modeling now indicates how some of the Canyon Diablo impactor melted during the impact that created Barringer.

The flashlight fish

The flashlight fish are a family, the Anomalopidae, of beryciform fish. There are some unrelated fish with similar features, some of which are also called flashlight fish. Notable among these are the deep sea lanternfish, of the family Myctophidae, of which there are over 200 species.
Flashlight fishes live in tropical waters across the world. Some species move to shallow waters or coral during the night, but otherwise, they are exclusively deep water fish. They are typically about 14 centimetres (5.5 in) in adult length, although some species reach twice this size. They feed on small crustaceans.

Flashlight fish are named for their large bioluminescent organs. These are located beneath the eyes and contain luminous bacteria. Two methods are used by different species for controlling light emission, either a shutter-like lid is raised over the organ or the organ is turned downward into a pouch. The light is used for predator avoidance, to attract prey, and for communication.

The Importance & Advantages of Learning Computer Technology Read more: The Importance & Advantages of Learning Computer Technology | eHow.com http://www.ehImportance advantages learning computer technology

Computers are an integral part of professional environments in the 21st century and not knowing how to do basic troubleshooting can be a drawback for job seekers. In addition, specialized professionals in computer technology, who can design and program computers and fix complicated problems, are imperative for any organization relying heavily on computers. Therefore, basic or advanced knowledge of computer technology can have a number of advantages for your career.