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Great Sand Dunes National Park - HowStuffWorks

Great Sand Dunes National Park's dunes are the product of competing elements: wind and water. Winds of more than 13 miles per hour from the southwest and northeast shake loose available sand, blowing it into one of three deposits in the valley: the cementlike sabkha, the outer sand sheet, and the inner dunefield (home of the biggest dunes).

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How Sand Dunes Work | HowStuffWorks

The texture of a grain of sand provides clues about how far it has traveled. The smaller the grain, the farther it's probably come and the easier it …

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How Dune Buggies Work | HowStuffWorks

Sand Rails. Dune buggies are also called sand rails by some enthusiasts, but technically both names describe the same thing: a bare-bones vehicle designed to traverse sand dunes and beaches where ordinary cars cannot. Sand rails describe a broad category of vehicle that comes in all shapes and sizes.

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The Snowy Dunes of White Sands National ... - HowStuffWorks

The dunes start out as small, snowy mounds bristling with clumps of scruffy vegetation. But the farther you drive into the heart of New Mexico's White Sands National Monument, the more impressive the dune field becomes. It's here, several miles along Dunes Drive, that the bright-white gypsum sand piles into massive, undulating mounds that stretch …

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The Ultimate Great Sand Dunes National ... - HowStuffWorks

The highest sand dunes in North America are found in the Great Sand Dunes National Park of Colorado. Take this quiz for a virtual tour of one of America's …

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Sand Dune Formation - HowStuffWorks

A wind or breeze to move the grains of sand An obstacle that causes the sand to lose momentum and settle. This obstacle could be as …

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How Sand Dunes Work | HowStuffWorks

Sand forms from the erosion of rocks. As rocks break down, the resulting materials are transported by wind, water or ice ( glaciers) and end up as sediment in the sea or -- as we'll learn in this article -- as sand dunes. For …

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Are sand dunes really alive? - HowStuffWorks

A sand dune can start out as small as a few hundred grains of sand settled against a pebble. And, with the right wind conditions, it can grow to several hundred feet tall. Depending on wind direction and velocity, a sand dune can spread out to form lovely ripples and patterns. The wind also causes some dunes to migrate. That's right -- a sand ...

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The Ultimate Great Sand Dunes National ... - HowStuffWorks

They are formed when vegetated sand prevents parts of the dune from migrating. They were formed when rain coming from the opposite direction to the wind eroded the dunes. Advertisement How were the Barchan dunes formed? winds blowing in different directions followed by rain in a single direction winds blowing in all directions

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Types of Sand Dunes - HowStuffWorks

The lineardune is straighter than the crescentic dune with ridges as its prominent feature. Unlike crescentic dunes, linear dunes are longer than they are wide -- in fact, some are more than 100 miles (about 160 kilometers) …

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What Are the 5 Hottest Deserts on Earth? | HowStuffWorks

Maybe you see sand dunes and cacti, maybe some rocks and the skeleton of a deceased animal, circled patiently by a vulture. Perhaps you can feel your skin burning just standing there under that intense imaginary sun. Desert ecosystems are inhospitable places to most organisms — they're always dry and often hot, at least some of the time.

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Types of Sand Dunes - HowStuffWorks

The crescenticdune, also called the barchand dune, is the most common type of sand dune. As its name suggests, this dune is shaped like a …

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Sand Dune Formation - HowStuffWorks

HSW. A sand dune needs the following three things to form: A large amount of loose sand in an area with little vegetation -- usually on the coast or in a dried-up river, lake or sea bed. A wind or breeze to move the grains of …

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Dune Bashing | HowStuffWorks

Dune bashing involves guiding your off-roading vehicle over sand dunes. In technique, it's like a combination of driving in mud and driving over hills. It's a popular tourist activity in parts of Saudi Arabia and the United Arab Emirates, where sand dunes are plentiful and organized dune bashing excursions are available, but is illegal in many places where off …

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Who calls the sand dune home? - Sand Dune | …

Called booming dunes, these sand dunes emit loud, deep hums that can last for several minutes. Dunes produce these bizarre sounds when very dry sand slides over itself, like an avalanche. You can make it happen by sliding down the slip face of a dune. As the sand begins to vibrate, you'll hear the singing. How Desert Survival Works

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The Ultimate Dune Buggies Quiz | HowStuffWorks

Dune buggies symbolize fun and sun for many who grew up during the '50s and '60s. You can keep the good times going with a dune buggy and some dunes. Take this quiz to learn more about the history and the fun of dune buggies.

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Great Sand Dunes National Park - HowStuffWorks

As water flows across the sand, sand dams, or antidunes, form beneath the surface of the water. The antidune is slowly built up as more sand collects on it, and the volume of water dammed behind the antidune increases accordingly.

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Who calls the sand dune home? - Sand Dune | HowStuffWorks

Sand snakes and lizards also call sand dunes home. These reptiles burrow rapidly through the sand, an action known as sand swimming. Hundreds or even thousands of types of insects also make their habitats in sand dunes. Beetles, moths, wasps, flies, crickets and spiders all live in the sand. Many of these insects prey on each other as well as ...

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Are sand dunes really alive? - HowStuffWorks

Sand dunes do sing. They also grow, migrate and reproduce. This behavior can make these otherwise colorless piles of grains seem almost lifelike. A sand dune forms when wind blows a large amount of loose sand into an obstacle, like a rock or a tree. The heaviest grains of sand settle against the obstacle and start to form a small ridge or bump.

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Sand Is in Such High Demand, People Are ... - HowStuffWorks

And concrete uses a whole lot of sand. It takes 30,000 tons (27,216 metric tons) of sand to construct 1 kilometer (0.62 mile) of highway and 200 tons (181 metric tons) to built the average concrete house reports Coastal Care, a non-profit foundation dedicated to beach conservation. According to a report from the International Monetary Fund, the ...

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How Desert Survival Works | HowStuffWorks

How Desert Survival Works. The Sahara Desert in Morocco. A stranger sets off across the desert in search of rescue. The sun beats down as he trudges up and over endless sand dunes. Up ahead an oasis appears, but it's only a cruel mirage. Eventually, the hapless victim succumbs to the elements and collapses to the sand.

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