Most agates occur as nodules in volcanic rocks or ancient lavas where they represent cavities originally produced by the disengagement of volatiles in the molten mass which were then filled, wholly or partially, by siliceous matter deposited in regular layers upon the walls.

The recorder consists of a float in a sealed chamber partially filled with water.

During a siege by Parthian troops in A. D. 257, the buildings in the outermost blocks of the city grid were partially destroyed and filled with rubble to reinforce the city wall.

Only atoms with partially filled shells ( i. e., unpaired spins ) can have a net magnetic moment, so ferromagnetism only occurs in materials with partially filled shells.

The original form of the device was just a glass bottle partially filled with water, with a metal wire passing through a cork closing it.

The composite cone of Nevis volcano has two overlapping summit craters that are partially filled by a lava dome, created in recent, pre-Columbian time.

Although sections of the main Führerbunker were found, partially destroyed or filled in, another bunker complex was found further north that even the East German authorities had apparently missed, plus other cavities beneath land bordering the east side of Ebertstraße, although these turned out to be underground garages belonging to a former SS accommodation block.

Another heat transfer application is in high-performance internal combustion engines with poppet valves, where valve stems partially filled with sodium are used as a heat pipe to cool the valves.

Conduction can only occur with partially filled bands.

Instead of the movable hafnium-based control rods used in all of the other United States Naval reactors, reactivity in the S7G core was controlled by stationary gadolinium-clad tubes partially filled with water.

Philo of Byzantium and Hero of Alexandria knew of the principle that certain substances, notably air, expand and contract and described a demonstration in which a closed tube partially filled with air had its end in a container of water.

* In the PC game Dark Age of Camelot, Lyonesse is a partially inundated zone at one end of the land of Albion, filled with ruins and dangerous monsters, many of them undead.

The dish is partially filled with warm liquid containing agar and a mixture of specific ingredients that may include nutrients, blood, salts, carbohydrates, dyes, indicators, amino acids and antibiotics.

The bag or syringe is partially filled with icing which is sometimes colored.

His barometer consisted of a glass tube that was partially filled with mercury.

Any additional periods are expected to contain a larger number of elements than the seventh period, as they are calculated to have an additional so-called g-block, containing 18 elements with partially filled g-orbitals in each period.

According to the orbital approximation in quantum mechanical descriptions of atomic structure, the g-block would correspond to elements with partially filled g-orbitals.

If conditions are partly cloudy, the circle is partially filled in.

These protostomes have a fluid filled main body cavity unlined or partially lined with tissue derived from mesoderm.

Pressure in the primary circuit is maintained by a pressurizer, a separate vessel that is connected to the primary circuit and partially filled with water which is heated to the saturation temperature ( boiling point ) for the desired pressure by submerged electrical heaters.

The molecular bond formation is a rapid process and as a result it is seen that 2s orbitals come to totally filled condition whereas the 2p orbitals only partially filled during that time span, and the remaining part of the 2p orbitals remain empty ( no electron ).

The natural falls were replaced by a concrete overflow spillway ( also called an " apron ") after it partially collapsed in 1869.

Further competition over the power of the falls on both banks of the river led to its eventual downfall when it partially collapsed in 1869 and was reinforced and subsequently sealed by a concrete overflow spillway ( or " apron ").

The partially channelled and straightened Limmat does not flow in the central part of the valley, but always along its right ( northeastern ) side.

According to legend, when the Mexicans arrived in the Anahuac valley around Lake Texcoco, they were considered by the other groups as the least civilized of all, but the Mexican / Aztec decided to learn, and they took all they could from other people, especially from the ancient Toltec ( whom they seem to have partially confused with the more ancient civilization of Teotihuacan ).

As a result the new sea will evaporate ( partially or completely ) several times before the elevation of the rift valley has been lowered to the point that the sea becomes stable.

Pushed by these twin forces, the Greco-Bactrian kingdom reoriented itself around lands in what is now Afghanistan, while the new invaders were partially assimilated into the Hellenistic culture left in Ferghana valley.

The partially excavated civic-ceremonial center of the Monte Albán site is situated atop an artificially-leveled ridge, which with an elevation of about above mean sea level rises some from the valley floor, in an easily defensible location.

After Kate drives the RV away, the camera pans back to reveal that the " Titty Twister " bar is the top of an Aztec temple partially sunk into a valley wall, most like the source and true home of the vampire monsters who've been spreading their curse for centuries, with many abandoned motorbikes and trucks seen around it which means many people met a horrible end.

was partially the result of the petition sent by the Mormon pioneers who had settled in the valley of the Great Salt Lake starting in 1847.

the tops of these mountains were yet partially covered with snow while we in the valley.

The western slopes are relatively shallow, and partially forested, with many gills leading down to the Thirlmere valley.

Another example is the delta of the Tagus river in Portugal, although due to sedimentation this delta is now only very partially inverted, with the valley now mostly filled with sediment.

It could also have encouraged the Canadian Pacific Railway to seek a more northerly route for its transcontinental railway that went through the well-mapped and partially settled valley of the North Saskatchewan River, touching on Prince Albert, Battleford and Edmonton, and through the Yellowhead Pass, as originally proposed by Sandford Fleming.

Throughout the late 19th century, farmers in the valley attempted various flood control efforts that eventually allowed the White River to partially flow into the Stuck River in 1899.

The Toronto and Region Conservation Authority had final say on the matter since the site was partially on the floodplain of the valley.

This tectonic activity produced the basis of Scotland's topography: ancient mountains in the North and South of the country, partially eroded by 400 million years of water and ice with a wide fertile valley between them, and a newer, wilder western terrain.

In 865 he led the partially failed campaign against King Ordoño I of Asturias, in the Duero valley.

At one time, probably when the valley was partially filled by a glacier, the level of Flathead Lake was about 500 feet ( 150 m ) higher and drained through the valley west of Elmo, Montana which is at the end of Big Arm Bay, bottom center in the aerial photo above.

Cayuga Lake and Montezuma Marsh were partially created by the damming effect of huge quantities of glacial drift brought from the Laurentian Shield of Canada and the deepened Ontario valley.

Today, the landslide is partially reclaimed by the surrounding forest but is still an obvious landmark from many vantage points in the Jackson Hole valley.

Geulhem is situated partially in a valley and partially on a hillside known as the Geulhemmerberg.

Because Tunks Park is at the bottom of a valley and partially enclosed by bushland, it has several short, easily navigable bushwalking trails that lead up to Naremburn to the west and Northbridge to the east.

A calanque is a steep-sided valley formed within karstic regions either by fluvial erosion or the collapse of the roof a cave that has been subsequently partially submerged by a rise in sea level.

Scenery along the highway features important cultural monuments, the upper valley of the Yarlung Tsangpo ( Brahmaputra ) River, vast grasslands and meadows, and mountain vistas including five of the world's highest peaks: Everest, Lhotse, Makalu, Cho Oyu and Shishapangma as well as partially unexplored and unclimbed peaks east of Tong La reaching 7, 367 meters at Labuche Kang.