CERN's Neutrino Platform houses a prototype of the Deep Underground Neutrino Experiment (DUNE) known as ProtoDUNE, which is designed to test and validate the technologies that will be applied to the construction of the DUNE ...
General Physics
Apr 12, 2024
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107
Coastal transgressive dunefields are on the march in South Australia—retreating inland from an angry ocean at an alarming rate. Yet while this occurs in plain sight, communities are largely oblivious to long-term coastal ...
Earth Sciences
Apr 2, 2024
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28
A researcher at Colorado State University has developed a potential approach for identifying and understanding dark matter using the soon-to-be-built gigantic particle detectors at the international Deep Underground Neutrino ...
Astronomy
Mar 29, 2024
2
286
In some parts of Australia, coastal dunes are retreating from the ocean at an alarming rate, as waves carve up the beach and wind blows the sand inland. But coastal communities are largely oblivious to the changes.
Earth Sciences
Mar 28, 2024
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52
From eye level, the wisps of green emerging from sand dunes up and down Pinellas County's barrier islands look sparse, stubby, almost tentative as they peek at the sun. Below the surface, though, they are spreading out, trapping ...
Plants & Animals
Mar 25, 2024
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9
"Dune," widely considered one of the best sci-fi novels of all time, continues to influence how writers, artists and inventors envision the future.
Environment
Mar 17, 2024
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77
On Jan. 16, 2020, the Mars Reconnaissance Orbiter (MRO) captured this image of two types of sand dunes on Mars: barchan and linear dunes.
Planetary Sciences
Mar 11, 2024
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6
Scientists have solved the mysterious absence of star-shaped dunes from Earth's geological history for the first time, dating one back thousands of years.
Earth Sciences
Mar 4, 2024
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18
Excavation workers have finished carving out the future home of the gigantic particle detectors for the international Deep Underground Neutrino Experiment. Located a mile below the surface, the three colossal caverns are ...
General Physics
Feb 1, 2024
1
162
Of all the organisms that photosynthesize, land plants have the most complex bodies. How did this morphology emerge? A team of scientists led by the University of Göttingen has taken a deep dive into the evolutionary history ...
Plants & Animals
Jan 23, 2024
0
102
In physical geography, a dune is a hill of sand built by wind. Dunes occur in different forms and sizes, formed by interaction with the wind. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter "slip face" in the lee of the wind. The valley or trough between dunes is called a slack. A "dune field" is an area covered by extensive sand dunes. Large dune fields are known as ergs.
Some coastal areas have one or more sets of dunes running parallel to the shoreline directly inland from the beach. In most cases the dunes are important in protecting the land against potential ravages by storm waves from the sea. Although the most widely distributed dunes are those associated with coastal regions, the largest complexes of dunes are found inland in dry regions and associated with ancient lake or sea beds.
Dunes also form under the action of water flow (alluvial processes), and on sand or gravel beds of rivers, estuaries and the sea-bed.
The modern word "dune" came into English from French circa 1790. In ancient times, words cognate to "dune" probably had the meaning of a built-up hill or citadel fortification.
This text uses material from Wikipedia, licensed under CC BY-SA
