When Was the Ocean Floor First Mapped Accurately?
The earliest methods of depth measurement on record are the use of sounding poles and weighted lines, recorded from Egypt more than 3000 years…
TellMeWhy
A wonderful and marvelous collection of answers to intriguing questions everyone ask about the world covering almost every subject, from science and history to art, language, mathematics, technology, and homeschooling
Where Is the Northwest Passage?
The Northwest Passage (NWP) is a sea route along the north coast of North America between the Atlantic and Pacific oceans. For centuries, European…
How Can We Use Water as a Fuel to Run Vehicles?
In order to find cleaner fuels, scientists around the world are trying to find a fuel or source of energy which produces little or…
How Many Ocean Currents Are There?
There are many types of great ocean currents or drifts. They are caused by three main forces: the prevailing winds, the earth’s rotation and…
What Distinguishes Isolation from Quarantine?
What Happens When You Are Quarantined? Governments use quarantines to stop the spread of contagious diseases. Quarantines are for people or groups who don’t…