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: 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...
By: Krystle Hernandez
Born in June of 1942, Robert Duane Ballard was raised in Wichita, Kansas, far from the vast oceans that would one day become his biggest passion. As a boy, however, Ballard was always interested in the deep underwater cultures of the sea. After scuba diving...
By: Vicky Cheshire-Wade
The main difference between spring, well and running water is the TASTE.Spring water seeps from the ground, either a flat area or up a hillside. Springs can be dug out to promote flow of water. A spring on flat ground usually seeps through blue-gray...
By: Sandra Petersen
Until the voyage of the United States Exploring Expedition led by Lieutenant Charles Wilkes, the United States government had not funded exploration except the overland expedition of Lewis and Clark to the Pacific Northwest from 1804-1806.In 1822, an Ohio newspaper editor and journalist by...
By: Ian Loft
Little thought was given concerning the relationship between global weather patterns and ocean currents until the 1960's. With the increasing use of computer modelling to construct scenarios spanning many thousands of years by extrapolation of limited raw data, a picture began to emerge in the...

 

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