For a solid shape such as a sphere, cone, or cylinder, the area of its boundary surface is called the surface area.

Emulsions contain both a dispersed and a continuous phase, with the boundary between the phases called the " interface ".

Two regions are called adjacent if they share a common boundary that is not a corner, where corners are the points shared by three or more regions.

The first stratigraphic boundary was defined in 1977 by identifying the Silurian-Devonian boundary with a bronze plaque at a locality called Klonk, northeast of the village of Suchomasty in the Czech Republic.

Encyclopædia Britannicas 1956 article on " New York ( City )" ( subheading " Greenwich Village ") states that the southern border of the Village is Spring Street, reflecting an earlier understanding ( today, Spring Street might be considered the southern boundary of the neighborhood sometimes called the South Village, though some cite Canal Street as the furthest extent of the South Village ).

The boundary solution between an underdamped oscillator and an overdamped oscillator occurs at a particular value of the friction coefficient and is called " critically damped.

When the British again refused to accept the 49th parallel boundary proposal, Polk broke off negotiations and returned to the Democratic platform " All Oregon " demand ( which called for all of Oregon up to the 54-40 line that marked the southern boundary of Russian Alaska ).

In December 1969, Kuwait and Saudi Arabia signed an agreement dividing the Neutral Zone ( now called the Divided Zone ) and demarcating a new international boundary.

The effects of viscosity are contained within a thin layer of fluid called the boundary layer, close to the body.

The Origo Gentis Langobardorum tells the story of a small tribe called the Winnili dwelling in southern Scandinavia ( Scadanan ) ( The Codex Gothanus writes that the Winnili first dwelt near a river called Vindilicus on the extreme boundary of Gaul.

Here the flow is called laminar and the boundary layer is a laminar layer.

The upper ( Cretaceous ) boundary is set at the Cretaceous-Tertiary ( KT ) extinction event ( now more accurately called the Cretaceous – Paleogene ( or K – Pg ) extinction event ), which may have been caused by the impactor that created Chicxulub Crater on the Yucatán Peninsula.

One type, called pallasites, is thought to have originated in the boundary zone above the core regions where iron meteorites originated.

In the diagram, the blue line marking the boundary between liquid and gas does not continue indefinitely, but terminates at a point called the critical point.

Most geologists and paleontologists would probably set the Proterozoic-Phanerozoic boundary either at the classic point where the first trilobites and reef building animals ( archaeocyatha ) such as corals and others appear ; at the first appearance of a complex feeding burrow called Treptichnus pedum ; or at the first appearance of a group of small, generally disarticulated, armored forms termed ' the small shelly fauna '.

For compact space | compact 2-dimensional surfaces without boundary ( topology ) | boundary, if every loop can be continuously tightened to a point, then the surface is topologically Homeomorphism | homeomorphic to a 2-sphere ( usually just called a sphere ).

As goddess of death she was also called a daughter of Zeus and Styx, the river that formed the boundary between Earth and the underworld.

The Styx (, also meaning " hate " and " detestation ") ( adjectival form: Stygian, ) is a river in Greek mythology that formed the boundary between Earth and the Underworld ( often called Hades which is also the name of this domain's ruler ).

Without reinforcement, the geographic area of contact between different forms of the same species, called their " hybrid zone ," will not develop into a boundary between the different species.

Pre-Simla British map published in 1909 shows the so called " Outer Line " as India's northern boundary.

He called his leg break a " leg-tweeker " but he put very little break on the ball, just enough to bring it across from the batsman's legs to the wicket and he invariably posted a fielder in a strategic position on the square leg boundary, a trap which brought occasional success.

The eastern boundary of the Louisiana purchase was the Mississippi River, from its source to the 31st parallel, although the source of the Mississippi was, at the time, unknown.

However the purchase of a caravan ticket in addition to the main ticket allows access to fields just outside the boundary fence.

In 1817, the boundary line was established for the purchase of all lands east of the Chattahoochee River from the forks of the Soque and Chattahoochee Rivers in a direct northerly line to the Tallulah River.

The highest point is above sea level, at the northern corner of the purchase boundary.

The shifting of the Rio Grande would much later cause a dispute over the boundary between purchase lands and those of the state of Texas, called the Country Club Dispute.

However, whether the western boundary of the purchase was the Humber River or the Etobicoke River ( now, Etobicoke Creek ) was disputed.

In 1853, Gadsden was appointed by the U. S. Government as the new American minister to Mexico, with instructions to purchase more land from Mexico for the prospective railroad route across southernmost New Mexico and Arizona, and to clear up the possibility of disputes over the location of the boundary between the two countries.

Gadsden successfully carried out this mission by negotiating with the Mexican government in Mexico City for the purchase of more land from Mexico for southmost New Mexico and Arizona, and by establishing the boundary between the United States and Mexico as two long line segments between the Rio Grande at the westmost tip of Texas all the way to the Colorado River at the eastern boundary of California.

The purchase would allow a runway either parallel to the main runway along the southern end of the eastern boundary of the airport, or a cross runway towards the southern end of the main runway.

Lake Avenue defines the eastern boundary of the original Woodbury Ranch purchase of.

In 1949 the Tennessee Game and Fish Commission, now the Tennessee Wildlife Resources Agency ( TWRA ), established a tentative purchase boundary encompassing some 90, 000 acres ( 360 km² ) within which they began to eliminate interior holdings through a land acquisition program.

He gave advice on where the international boundary should be established for Oregon, and also may have planted the seeds that led to the purchase of Alaska from Russia.

What may be acceptable in one state may be strictly prohibited across the boundary line.

By its terms the boundary between Alfred ’ s and Guthrum ’ s kingdoms was to run up the River Thames, to the River Lea ; follow the Lea to its source ( near Luton ); from there extend in a straight line to Bedford ; and from Bedford follow the River Ouse to Watling Street.

This line, the Durand Line, is named after Mortimer Durand and which still remains as an unrecognized boundary by the Government of Afghanistan.

In doubles, the service court is also marked by a long service line, which is 0. 76 metres ( 2 ft 6 inch ) from the back boundary.

; 3. 1: To test a shuttlecock, use a full underhand stroke which makes contact with the shuttlecock over the back boundary line.

; 3. 2: A shuttlecock of the correct speed will land not less than 530 mm and not more than 990 mm short of the other back boundary line.

The corresponding form of the fundamental theorem of calculus is Stokes ' theorem, which relates the surface integral of the curl of a vector field to the line integral of the vector field around the boundary curve.

where is a line integral along the boundary of the area in question, and | A | is the magnitude of the area.

" Attacking " balls on the boundary line to bring them into play is thus far more challenging.

The A-baulk coincides with the western half of the yard line along the south boundary ; the B-baulk occupies the eastern half of the north boundary yard line.

* Yard line: An imaginary line one yard from the boundary.

Balls that go off the boundary are generally replaced on the yard line ( but if this happens on a croquet stroke, the turn ends ).

The dotted line marked A represents the southern boundary of the Kingdom of Alba, circa | c. 890 – 950.

The dotted line marked B represents the southern boundary of the Kingdom of Strathclyde, c. 925 – 945.

DiameterIn geometry, the diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the boundary of the circle.

The boundary with Iran was firmly delineated in 1904, replacing the ambiguous line made by a British commission in 1872.

The Honduras-El Salvador Border Protocol ratified by Honduras in May 1999 established a framework for a long-delayed border demarcation, which is currently underway ; with respect to the maritime boundary in the Golfo de Fonseca, the ICJ referred to the line determined by the 1900 Honduras-Nicaragua Mixed Boundary Commission and advised that some tripartite resolution among El Salvador, Honduras and Nicaragua likely would be required.

The matter was resolved with a compact between the states, ratified by U. S. Congress in 1834, which set the boundary line between them as the middle of the Hudson River and New York Harbor.

He says that if a figure be any how divided and the compartments differently coloured so that figures with any portion of common boundary line are differently coloured — four colours may be wanted but not more — the following is his case in which four colours are wanted.

Typical aerodynamic teardrop shape, assuming a viscous medium passing from left to right, the diagram shows the pressure distribution as the thickness of the black line and shows the velocity in the boundary layer as the violet triangles.

Gates in a peace line in West Belfast, marking the boundary between Segregation in Northern Ireland | segregated communities in Northern Ireland.