By: D. Vogt
An ichthyologist is a scientist who specializes in studying fish, including rays and sharks. There are currently about 30,000 known fish species, making this group larger in terms of total number of species than all birds, reptiles, and mammals put together. - About Ichthyology...
Why the ocean at the North Pole doesn't drip
By: D. Vogt
The Arctic Ocean does not drip downwards from the North Pole for the same reason that the Antarctic ocean does not pool downwards towards the South Pole: Earth's gravity pulls all surface objects down towards the core of the planet, not down from the northern...
What are metallic nodules on the sea-bottom?
By: D. Vogt
Since the 19th century, we have been aware that the sea-bottom is littered with layers of metallic nodules, also known as manganese nodules, which are generally small but extremely metal-rich rocks containing large quantities of valuable manganese and smaller amounts of iron, copper, zinc, cobalt...
Ocean dead zones explained
By: D. Vogt
Ocean dead zones are ocean regions where the amount of oxygen dissolved in the water has fallen so low that most or all marine life is incapable of surviving and has either died or fled to nearby, more oxygen-rich areas. There are currently several hundred...
Which is the widest waterfall and where can you find it?
By: D. Vogt
Waterfalls are among the most striking scenes one can find in nature: vast volumes of water plunging over a rocky abyss, producing clouds of vapour and a roar that can be heard for miles. For most people in North America, the famed Niagara Falls, lying...
What is an oceanographer?
By: D. Vogt
Oceanography is the science of the oceans, including marine life and ecology, sea waves and currents, sea-floor geology, and ocean chemistry. Oceanographers study a wide variety of issues within these general subject areas. - About Oceanography - Human societies have a long history of interactions...
What is the origin of water, and how it was created?
By: D. Vogt
Scientists are generally confident that they know where water came from originally, but the origin of the water on Earth itself is more of a mystery. Indeed, the Biblical book of Genesis itself, though offering a detailed account of some other aspects of the Judeo-Christian...
By: Lillyswawa
With the hurricane season upon us, you will want to begin preparation early, stocking up on supplies, digging out that generator, and checking out those storm shutters for viability. Safety being your first concern, there are numerous things you can do to shield your family...
How the Dead Sea got its name
By: D. Vogt
The Dead Sea is a large salt lake which lies between present-day Israel and Jordan, and is famous for its appearance and role in the Biblical narrative of Jesus Christ. It gets its name because, as the lowest-lying lake in the world, it has a...
By: Michael Totten
A champagne diamond is a diamond which has a light yellow color tint to it. Most champagne diamonds are simply white diamonds rated below K on the color scale, with D being a white diamond that is perfectly colorless. Such tinted diamonds are less...

 

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