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At liquid level in the top reservoir, the liquid is under atmospheric pressure, and as one goes up the siphon, the hydrostatic pressure decreases ( under vertical pressure variation ), since the weight of atmospheric pressure pushing the water up is counterbalanced by the column of water in the siphon pushing down ( until one reaches the maximum height of a barometer / siphon, at which point the liquid cannot be pushed higher ) – the hydrostatic pressure at the top of the tube is then lower than atmospheric pressure by an amount proportional to the height of the tube.
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At and liquid
At that temperature, the vapor pressure of the liquid becomes sufficient to overcome atmospheric pressure and allow bubbles of vapor to form inside the bulk of the liquid.
At room temperature, honey is a supercooled liquid, in which the glucose will precipitate into solid granules.
At it melts into a cloudy liquid, and at it melts again and the cloudy liquid becomes clear.
At high temperatures used to prepare glass, the material is a viscous liquid.
At the critical point, the liquid and gas become indistinguishable.
At the point where liquid begins to condense, the direction of the temperature and pressure curve will abruptly change to trace along the phase line until all of the water has condensed.
At temperatures just below the triple point, compression at constant temperature transforms water vapor first to solid and then to liquid.
At temperatures above 273 K ( 0 ° C ), increasing the pressure on water vapor results first in liquid water and then a high-pressure form of ice.
At the melting point the solid and liquid phase exist in equilibrium.
: At constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.
At higher altitudes, the boiling point of liquid in the pressure cooker will be slightly lower than it would be at sea level.
At the phase transition point ( for instance, boiling point ) the two phases of a substance, liquid and vapor, have identical free energies and therefore are equally likely to exist.
* 2005 At the RHIC accelerator of Brookhaven National Laboratory they have created a quark-gluon liquid of very low viscosity, perhaps the quark-gluon plasma
At a very basic level hydraulics is the liquid version of pneumatics.
At some point of low temperature and high pressure, real gases undergo a phase transition, such as to a liquid or a solid.
At Fairchild AFB, support facilities, including a liquid oxygen plant, were completed by January 1961.
At a given temperature a lipid bilayer can exist in either a liquid or a gel ( solid ) phase.
At first, pectin was sold as a liquid extract, but nowadays pectin is often used as dried powder that is easier to store and handle than a liquid.
At present, however, the superconducting magnets that are used in the process have to themselves be cooled down to the temperature of liquid nitrogen, or with even colder, and relatively expensive, liquid helium.
At steady state conditions, the vapor and liquid on each tray are at equilibrium.
At and level
At the national and international level, then, what is the highest kind of morality for the private citizen represents an instance of political immorality.
At the central level the scrutin uninominal voting system was selected over some form of the scrutin de liste system, even though the latter had been recommended by Duverger and favored by all political parties.
At the policy level, common goals of agriculture include:
At this level we do not need to mention how the machine manages its tape or head.
At this level we do not give details of states or transition function.
At the molecular level, an antigen can sometimes be characterized by its ability to be " bound " at the antigen-binding site of an antibody.
At a schematic level, that basic worm-shape continues to be reflected in the body and nervous system architecture of all modern bilaterians, including vertebrates.
At high levels of play, the backhand serve has become popular to the extent that forehand serves have become fairly rare at a high level of play.
At the start of 2007, the BWF introduced a new tournament structure for the highest level tournaments aside from those in level one: the BWF Super Series.
At the time of his retirement from the England team in 1970, he was the nation's most capped player, having turned out 106 times at the highest level.
At the broadest level Micah can be divided into three roughly equal parts:
At this level students could start to move on their own.
At the lowest level, executable code consists of machine language instructions specific to an individual processor.
At the level of the individual, pressing psychological needs may influence the process, and certain of our universal mental tools may impose epistemic ' blind spots '.
At the group or sociological level, historic factors may make the process of assigning satisfactory meanings more or less problematic.
At the Master's level and higher, students tend to specialize in a particular field.
At a deeper level, there are still basic conceptual issues that remain unresolved.
At the most basic level, this involves establishing what form of currency the country may have, whether a fiat currency, gold-backed currency ( disallowed for countries with membership of the International Monetary Fund ), currency board or a currency union.
At the federal level, it forms a common ' CDU / CSU ' faction in the Bundestag with the CDU, which is frequently referred to as the Union Faction ( die Unionsfraktion ).
At, the Channel Tunnel possesses the longest undersea portion of any tunnel in the world, although the Seikan Tunnel in Japan is both longer overall at and deeper at below sea level.
At the simplest level, the process of composting simply requires making a heap of wetted organic matter ( leaves, " green " food waste ) and waiting for the materials to break down into humus after a period of weeks or months.
At the end of glacials with sea level rapidly rising, corals become major sinks for Carbon dioxide as the reefs grow up to the new sea level.
At the circuit level, there are various techniques that can be used to measure current:
0.671 seconds.