Advantages of a mild winter
By: Sam Smart
What comes to mind when you think of winter? Snow and cold may be first. Blizzards, too. Coping with months of high heating bills is something most people dread as well. Depending on where you live, remember that not all winters are considered “cold...
How Britain's elm trees were ravaged by Dutch elm disease
By: Allienne Becker
Cause of Dutch Elm Disease A fungal disease, affecting Britain’s trees, Dutch Elm Disease, so named by a Dutch scientist, is caused by two European bark beetles—the the Scolytus scolytus and the Scolytus multistriatus—that feed upon the bark of the elms, transmitting...
By: Blaise Pascal
The formation of coaloccurs over the course of a very long period. Most of the coal that people mine and use today was formed around 300 to 400 million years ago. Coal is basically the decayed remains of plant matter that was once thriving and...
By: Julie Thomas-Zucker
The ways that mountains form is the geologic process called orogeny. . Different types of rock determine how high the rocks will rise. Two main branches of science concerned with orogeny are geology and geochronology. The movement of tectonic plates through earthquakes and volcanoes accelerate the...
By: Morgan Carlson
The scientific explanation of the occurrence of floods is simple; an excessive presence of water that overwhelms the absorption rate of the ground. All floods follow this principle, though many cases are due to large amounts of water that already exist before the flooding rather...
By: Cameron Scott
Ice fog is a special type of fog which forms when the humidity is close to 100% and the temperature is below freezing. The suspended water which makes up the fog can be in either supercooled liquid or ice form. When that moisture-laden air touches...
By: B. J. Deming
Chile has a long history of tsunamis, so when a magnitude 9 earthquake struck far-away Japan on March 11, 2011, residents of this beautiful country that stretches along the Pacific coast of South America were quick to evacuate low-lying areas. Fortunately, that tsunami’s energy...
How Britain's elm trees were ravaged by Dutch elm disease
By: Maria F. Garcia
The English elm, once a common sight in the European, North American and Asian countryside, was ravaged in the late 20th century by an aggressive strain of the Dutch Elm Disease (DED). The English elm is one of the main native elms of Britain. The...
By: Toni Macdonald
Hoar frost is a layer of frost that collects on the surfaces of objects. Imagine a winter scene in which all of the trees and anything outside has a layer of frost over it. That is hoar frost. Hoar frost is comparable to dew in...
Geography: What is a second order stream
By: Nick Ford
A second order stream is a term are used primarily in physical geography and hydrology. It describes a watercourse which is fed by two other streams. Second order streams are typically shallow, fast flowing and found in upland areas. Arthur Newell Strahler introduced the idea...

 

1 439 440 441 442 443 533