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News tagged with islands

Climate skeptic admits he was wrong to doubt global-warming data

Remember when scientists who had cast doubt on global temperature studies boldly embarked on an effort to "reconsider" the evidence?

Space & Earth / Environment

created Oct 25, 2011 | popularity 4 / 5 (36) | comments 108

Virus-eating virus identified in Antarctic lake

(PhysOrg.com) -- Deep within the waters of Antarctica's Organic Lake an Australian research team, led by microbiologist Ricardo Cavicchioli from the University of New South Wales, have discovered a new virophage, or virus ...

Biology / Cell & Microbiology

created Mar 29, 2011 | popularity 5 / 5 (20) | comments 4 report

West Antarctic ice shelves tearing apart at the seams

A new study examining nearly 40 years of satellite imagery has revealed that the floating ice shelves of a critical portion of West Antarctica are steadily losing their grip on adjacent bay walls, potentially ...

Space & Earth / Earth Sciences

created Mar 27, 2012 | popularity 4.9 / 5 (18) | comments 2 | with audio podcast

Pentagon successfully tests hypersonic flying bomb

The Pentagon on Thursday held a successful test flight of a flying bomb that travels faster than the speed of sound and will give military planners the ability to strike targets anywhere in the world in less than a hour.

Technology / Engineering

created Nov 17, 2011 | popularity 4.1 / 5 (21) | comments 180

Evidence suggests Neanderthals took to boats before modern humans

(PhysOrg.com) -- Neanderthals, considered either a sub-species of modern humans or a separate species altogether, lived from approximately 300,000 years ago to somewhere near 24,000 years ago, when they inexplicably ...

Other Sciences / Archaeology & Fossils

created Mar 01, 2012 | popularity 4.9 / 5 (15) | comments 31 | with audio podcast report

500 million-year-old super predator had remarkable vision

South Australian Museum and University of Adelaide scientists working on fossils from Kangaroo Island, South Australia, have found eyes belonging to a giant 500 million-year-old marine predator that sat at ...

Other Sciences / Archaeology & Fossils

created Dec 07, 2011 | popularity 4.1 / 5 (17) | comments 4 | with audio podcast

Apple 'avoiding billions in global taxes,' report claims

Gadget giant Apple is avoiding billions of dollars in taxes by setting up small offices around the world to collect and invest the company's profits, according to The New York Times.

Technology / Business

created Apr 29, 2012 | popularity 4.9 / 5 (14) | comments 68

Director Cameron reaches bottom of Mariana Trench

"Titanic" director James Cameron reached the deepest part of the Pacific Ocean in his solo submarine, mission partner the National Geographic said Sunday.

Space & Earth / Earth Sciences

created Mar 25, 2012 | popularity 4.5 / 5 (12) | comments 0

Genetic analysis shows tortoise species thought to be extinct for 150 years still lives

Dozens of giant tortoises of a species believed extinct for 150 years may still be living at a remote location in the Galapagos Islands, a genetic analysis conducted by Yale University researchers reveals.

Biology / Plants & Animals

created Jan 09, 2012 | popularity 4.6 / 5 (11) | comments 2 | with audio podcast

The oldest farming village in the Mediterranean islands is discovered in Cyprus

The oldest agricultural settlement ever found on a Mediterranean island has been discovered in Cyprus by a team of French archaeologists involving CNRS, the National Museum of Natural History, INRAP, EHESS ...

Other Sciences / Archaeology & Fossils

created May 15, 2012 | popularity 4.1 / 5 (12) | comments 3 | with audio podcast

As seen from space: Volcanic eruption creates new island in the red sea

Looking for some new lake-front property? Here’s the newest available on the planet. Volcanic activity in the Red Sea that started in mid-December has created what looks like a new island. The Advanced ...

Space & Earth / Earth Sciences

created Dec 28, 2011 | popularity 4.7 / 5 (10) | comments 6

Image: Crack discovered in Pine Island Glacier

(PhysOrg.com) -- In mid-October 2011, NASA scientists working in Antarctica discovered a massive crack across the Pine Island Glacier, a major ice stream that drains the West Antarctic Ice Sheet. Extending ...

Space & Earth / Earth Sciences

created Feb 01, 2012 | popularity 4.7 / 5 (10) | comments 5

Killer whales migrate, study finds, but why?

Some killer whales, a study published Wednesday shows for the first time, wander nearly 10,000 kilometres (6,200 miles) from Antarctica's Southern Ocean into tropical waters -- but not to feed or breed.

Biology / Plants & Animals

created Oct 25, 2011 | popularity 4.5 / 5 (10) | comments 2

Scientists find odd twist in slow 'earthquakes': Tremor running backwards

Earthquake scientists trying to unravel the mysteries of an unfelt, weeks-long seismic phenomenon called episodic tremor and slip have discovered a strange twist. The tremor can suddenly reverse direction ...

Space & Earth / Earth Sciences

created May 22, 2011 | popularity 4.8 / 5 (9) | comments 2 | with audio podcast

Urban 'heat island' effect is a small part of global warming; white roofs don't reduce it

Cities release more heat to the atmosphere than the rural vegetated areas around them, but how much influence these urban "heat islands" have on global warming has been a matter of debate. Now a study by Stanford researchers ...

Space & Earth / Environment

created Oct 19, 2011 | popularity 2.9 / 5 (14) | comments 68 | with audio podcast

Island

An island (pronounced /ˈaɪlənd/) or isle (/ˈaɪl/) is any piece of land that is surrounded by water. Very small islands such as emergent land features on atolls are called islets. A key or cay is another name for a small island or islet. An island in a river or lake may be called an eyot, /ˈaɪ.ət/. There are two main types of islands: continental islands and oceanic islands. There are also artificial islands. A grouping of geographically and/or geologically related islands is called an archipelago.

The word island comes from Old English ī(e)gland (literally, "watery land"). However, the spelling of the word was modified in the 15th century by association with the etymologically unrelated Old French loanword isle.

There is no standard of size which distinguishes islands from islets and continents.

When defining islands as pieces of land that are surrounded by water, narrow bodies of water like rivers and canals are often, but not always, left out of consideration[citation needed]. For instance, in France the Canal du Midi connects the Garonne river to the Mediterranean Sea, thereby completing a continuous water connection from the Atlantic Ocean to the Mediterranean Sea. So technically, the land mass that includes the Iberian Peninsula and the part of France that is south of the Garonne River and the Canal du Midi is surrounded by water. For a completely natural example, the Orinoco River splits into two branches near Tamatama, in Amazonas state, Venezuela. The southern branch flows south and joins the Rio Negro, and then the Amazon. Thus, all of the Guianas (Guyana, Suriname, and French Guiana) and substantial parts of Brazil and Venezuela are surrounded by (river or ocean) water. These instances are not generally considered islands. However, small pieces of land bordered by rivers are considered islands.

This also helps explain why Africa-Eurasia can be seen as one continuous landmass (and thus technically the biggest island): generally the Suez Canal is not seen as something that divides the land mass in two. The mainland of Australia is often considered the largest island because it is covered on all sides by water while not being connected to another body of land.

On the other hand, an island may still be described as such despite the presence of a land bridge, e.g., Singapore and its causeway or the various Dutch delta Islands, such as IJsselmonde. Some places may even retain "island" in their names after being connected to a larger landmass by a wide land bridge, such as Coney Island. The retaining of the island description may therefore be to some degree simply due to historical reasons - though the land bridges are often of a different geological nature (for example sand instead of stone), and thus the islands remain islands in a more scientific sense as well.

For more information about Island, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: species