By: Bob Schmidt
Acid rain is both a manmade, and a natural process. We cannot stop volcanoes from erupting, but we can reduce emissions from industries that are the greatest contributors to the problem. Sulfur and nitrogen emissions are the demonic gasses that begin the cycle we...
By: Richard Serra
Of all the mysteries that we have on this planet, one that stood out for centuries, is what is it that really affects our weather? As more and more research on the subject took place, this mystery of how the ocean's currents affect our weather...
By: Ian Loft
The major form of international imports, exports and travel in the 19th century was by sea. A journey from Baltimore in the United States to Brazil was an arduous sea voyage of more than 120 days using the fastest clipper ships of the day. This...
By: Ian Loft
In 1838, Lt Charles Wilkes of the US Navy embarked on an historic mission to explore the Pacific Ocean commanding a fleet of six vessels that carryied leading edge scientific instruments, and with experts in the fields of botany, horticulture, conchology (study of shells), mineralogy...
By: Ian Loft
Recent scientific discoveries revealed the presence of vast frozen reserves of water around the Martian Polar Regions, and these appear to be showing signs of melting. Irrespective of this amazing discovery, it is only this small blue-green planet of ours that we know for certain...
By: Ian Loft
A rip current is perhaps one of the most dangerous phenomenon responsible for hundreds of drowning deaths every year worldwide. With more than 80% of beach rescues occurring because of rip currents, surprisingly few swimmers understand the dangers or heed warnings. A rip current is...
By: Christine Anderson
The National Geographic Magazine is published by the National Geographic Society, which describes itself as a nonprofit scientific and educational association. The magazine is published monthly; and is a unique publication with high standards of writing, photography, and graphics. The 7 X 10 inch size...
By: Bob Trowbridge
The moon may be for lovers after all because it is so attractive to the earth. The moon has many subtle gravitational effects but the most obvious in our experience is the movement of the tides. The moon exerts an attraction to the earth and...
By: Bob Trowbridge
All rain is acidic because it binds with carbon dioxide, but acid rain is caused by pollutants in the form of sulfur dioxide and nitrogen oxides, which combine with oxygen to create sulfuric and nitric acid. The sulfur dioxide tends to come from coal burning...
By: Allen Teal
Without the moon, the earth would probably still have some tidal action because of its rotation on its axis and the way the tilt of the earth causes it to face the sun differently in the changing seasons. No one would ever build a surfboard...

 

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