They are huge areas which have been swept by winds for so many centuries that there is no soil left, but only deep bare ridges fifty or sixty yards apart with ravines between them thirty or forty feet deep and the only thing that moves is a scuttling layer of sand.

The main question raised by the incident is how much longer will UN bury its head in the sand on the Congo problem instead of facing the bitter fact that it has no solution in present terms??

Falling somewhere in a category between Einstein's theory and sand fleas -- difficult to see but undeniably there, nevertheless -- is the tropical green `` city '' of Islandia, a string of offshore islands that has almost no residents, limited access and an unlimited future.

Other natural features which can be of high interest are the forests, canyons, mountains, deserts, seacoast, beaches, sand dunes, waterfalls, springs, etcetera with which the area is blessed.

Some of the Island is sand and is not suitable for living.

Adobe (, ; Arabic: الطوب ) is a natural building material made from sand, clay, water, and some kind of fibrous or organic material ( sticks, straw, and / or manure ), which the builders shape into bricks ( using frames ) and dry in the sun.

The mixture is roughly half sand ( 50 %), one-third clay ( 35 %), and one-sixth straw ( 15 %) by weight.

It receives its name from its soil ( weathered from the weak underlying limestone ), which is black in colour, almost destitute of sand and loam, and rich in limestone and marl formations, especially adapted to the production of cotton ; hence the region is also called the Cotton Belt.

The area around Abensberg, the so-called sand belt between Siegburg, Neustadt an der Donau, Abensberg and Langquaid, is used for the intensive farming of asparagus, due to the optimal soil condition and climate.

The mushroom anchor is suitable where the seabed is composed of silt or fine sand.

Baltic amber or succinite ( historically documented as Prussian amber ) is found as irregular nodules in marine glauconitic sand, known as blue earth, occurring in the Lower Oligocene strata of Sambia in Prussia ( in historical sources also referred to as Glaesaria ).

If the shore is the Campo dell ' Oro ( gold because of the sand?

The weir across the Yamuna was the first attempted in Upper India upon a foundation of fine sand ; it is about 800-yard long, and rises seven-feet above the summer level of the river.

Botswana is affected by periodic droughts, and seasonal August winds blow from the west, carrying sand and dust, which can obscure visibility.

In the hypothetical situation that a given coastline has this property of self-similarity, then no matter how greatly any one small section of coastline is magnified, a similar pattern of smaller bays and promontories superimposed on larger bays and promontories appears, right down to the grains of sand.

The aggregate is generally a coarse gravel or crushed rocks such as limestone, or granite, along with a fine aggregate such as sand.

When lime is mixed with sand, it hardens into a mortar and is turned into plaster by carbon dioxide uptake.

However, the story is not yet quite finished: " When the thousand years have expired, Satan will be released from his prison and will go out to deceive the nations which are in the four corners of the earth, Gog and Magog, to gather them together to battle, whose number is as the sand of the sea.

Heavier particles settle out first, so gravel will be on the bottom, sand above, silt above that and very fine clay and organic matter will stay in suspension for days.

Soil samples show fine wind-blown sand, no trace of earthworm activity, reduced rainfall and indications of a drier and windier climate.

In an hourglass, fine sand pours through a tiny hole at a constant rate and indicates a predetermined passage of an arbitrary period of time.

There are no fewer than 152 beaches along its coastline — 50 kilometres of fine, white sand and 25 kilometres of black volcanic shingle.

The wind brings in fine white sand, visibility can drop to between or even lower and can even bring African locusts to the island.

Sites of interest include Corralejo and El Jable to the north which are made up of fine sand dunes whilst the south is filled with long beaches and remote bays.

The word " grits ", referring to a food, should not be confused with " grit ", which can mean either " courage " or " a small particle, like fine sand ".

This process involves sintering a mixture of clay and limestone to about, then grinding it into a fine powder which is then mixed with water, sand and gravel to produce concrete.

Floor paints that will be subjected to abrasion may contain fine quartz sand as a filler.

In the west, the elevation is about 600 meters, and the sand is fine and soft ; in the east, the elevation drops to about 180 meters, and much of the surface is covered by relatively stable sand sheets and salt flats.

Clay, fine sand and silt, and fine-grained, pyroclastic material are all susceptible to earthflows.

* Aeolian processes ( movement by wind ) are capable of moving silt and fine sand many hundreds of miles, forming loess soils ( 60-90 percent silt ), common in the Midwest of North America and in Central Asia.

The fine particles that compose shale can remain suspended in water long after the larger and denser particles of sand have deposited.

Behind the beach, there can be dunes ( where the dominant deposition is well sorted sand ) or a lagoon ( where fine clay and organic material is deposited ).

" Ultramarine rich in silica " is generally obtained by heating a mixture of pure clay, very fine white sand, sulfur and charcoal in a muffle-furnace.

It was considered impassable by tanks and most other military vehicles because of features such as salt lakes, high cliffs and / or escarpments, and Fech fech ( very fine powdered sand ).

Concrete is a mixture of coarse ( stone or brick chips ) and fine ( generally sand or crushed stone ) aggregates with a binder material ( usually Portland cement ).

Most of these landscapes alternate between rough cliffs and fine sand beaches ; the region of the Algarve is recognized for its tourist-friendly sand beaches, while at the same time its steep coastlines around Cape St. Vincent is well known for steep and foreboding cliffs.

The turbine blades are highly sensitive to dust and fine sand, so that in desert operations air filters have to be fitted and changed several times daily.

Visitors are mainly attracted to its long beaches, many of fine white sand, bathed by a calm sea, and the region ’ s pleasant climate.

Those who are keen of pleasant beaches with sand and given the characteristics of the estuary-the soil is bay mud instead of sand or pebbles-must reach its south east limits located about 100 km ( 62 mi ) away by road, where Pehuén-Có and Monte Hermoso are located.

Tamarama Beach is a small beach between two prominent headlands, with a sand filled valley to the back, surrounded by pleasant parkland and picnic areas.

Kuraman island has two main beaches and is noted for its fishing, large sand spit and pleasant tropical island atmosphere.