The engineering of the Machu Picchu water drainage system
By: Blaise Pascal
Situated above the Urubamba Valley and Urubamba River in Peru is a 15th century Inca site called Machu Picchu, and it is one of the most familiar and visited sites of the Inca. While the exact reasoning for its construction and its later abandonment are...
By: Sam Madsen
We all love the beauty and wildness of our natural forest and as a whole try to preserve it. The biggest threat to a forest is a “wildfire” and it is our job as humans to take responsibility for it and try to ensure...
How summer weather increases the risk of wildfires
By: Bema Self
Unless your home is surrounded year round by an icy landscape, then summer brings with it certain risks. Specially, fire hazards abound when the summer comes around, and this means that one of your biggest risks are going to be potential wildfires. Why does summer...
How summer weather increases the risk of wildfires
By: Sharon Yeates
Massive wildfires in Texas, Arizona and New Mexico during the summer of 2011 have highlighted the fact that summer heat brings summer wildfires. Why is summer fire season though? The best answer is that fire loves heat. In summer a glass pane leaning against a...
By: Nan C Avery
Californians are aware of wildfires. Wildfires burn acres and acres of land. Wildfires encroach and place family homes in danger. Wildfires are seasonal.There are two types of wildfires in California. One type is the natural cycle of lightning strikes that burn old growth away...
By: Lenna Gonya
Wildfires spread through dry forests, brush, and grasslands at terrific speed, destroying thousands of acres of timber, homes, and everything else in their paths. All of this can result from a mere spark, sometimes from an act of nature, such as a lightening strike, but...
By: Blaise Pascal
Magma is a molten material that is present beneath the surface of the Earth. As a result of volcanic activity, magma is extruded to the surface and once this material reaches the surface, it is known as lava. The lava will eventually cool on the...
By: Deneice Arthurton
Although the collection and subsequent study of seashells is a serious scientific field known as conchology, most shell collectors are of the casual variety. Some people find it impossible to pass by a seashell which has caught their eye without stooping to pick it up...
By: Janet Grischy
An overview of the common seashells of the United States might begin with the state shells of fourteen coastal states. However, California and Hawaii, where shells are abundant and admired, lack designated state shells. Also, many state shells are the shell of more than one...
By: Donna Fallis
Chile has had three tsunamis since 1868, all occurring after major earthquakes. On the 13th of August, 1868 a 9.0-magnitude earthquake struck, offshore, between the borders of Peru and Chile creating a massive tsunami. It was 4:45 in the afternoon and the first tsunami...

 

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