the mill-pond is quiet, its surface dark and shadowed, and there does not seem to be much water in it.

In view of the increasing shortage of usable surface and ground water in many parts of the Nation and the importance of finding new sources of supply to meet its present and future water needs, it is the policy of the Congress to provide for the development of practicable low-cost means for the large-scale production of water of a quality suitable for municipal, industrial, agricultural, and other beneficial consumptive uses from saline water, and for studies and research related thereto.

This shelter could be built in regions where water or rock is close to the surface, making it impractical to build an underground shelter.

These are particularly suitable for regions where water or rock is close to the surface.

Then pour water or light oil from a graduated beaker into the chamber to fill the chamber to its gasket surface.

This is possible with water and other liquids that have a high surface tension.

Check thickness of clay and build up thin areas by moistening surface with a little water and adding small pieces of clay.

After selecting a sheet and inspecting it for flaws ( even the best sometimes has foreign ' nubbins ' on its surface ), I sponge it thoroughly on both sides with clean, cold water.

In an essentially static system, an oil cannot be replaced by water on a surface unless the interfacial tensions of the water phase are reduced by a surface-active agent.

The best chance, of course, is offered by gently sloping terrain where the water remains close to the surface and where the air is dry, so that a high evaporation leaves salty deposits which permit only sparse plant growth.

A most useful tool for wetting the surface without running down was made from a greenhouse `` mist spray '' nozzle welded to a hose connection, to be used at low water pressure.

It consists of a series of pipes and a pressure-measuring chamber which record the rise and fall of the water surface.

Gas exchange can take place through the skin and this allows adult amphibians to respire without rising to the surface of water and to hibernate at the bottom of ponds.

On the surface of the ground or in water they move by undulating their body from side to side.

Newly hatched tadpoles soon develop gill pouches which cover the gills and their lungs develop early and are used as accessory breathing organs, the tadpoles rising to the water surface to gulp air.

With a total area of about, it covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area.

On average, the Atlantic is the saltiest major ocean ; surface water salinity in the open ocean ranges from 33 to 37 parts per thousand ( 3. 3 – 3. 7 %) by mass and varies with latitude and season.

Climate is influenced by the temperatures of the surface waters and water currents as well as winds.

Aegean surface water circulates in a counter-clockwise gyre, with hypersaline Mediterranean water moving northward along the west coast of Turkey, before being displaced by less dense Black Sea outflow.

The actual surface becomes both ground and background, and it turns out -- suddenly and paradoxically -- that the only place left for a three-dimensional illusion is in front of, upon, the surface.

In the event of heavy precipitation, the load on the sewage treatment plant at the end of the pipe becomes too great to handle and raw sewage is dumped into holding tanks, and sometimes into surface water.

A second aspect of printer technology that is often forgotten is resistance to alteration: liquid ink, such as from an inkjet head or fabric ribbon, becomes absorbed by the paper fibers, so documents printed with liquid ink are more difficult to alter than documents printed with toner or solid inks, which do not penetrate below the paper surface.

In certain situations, not commonly considered in the analysis of the mechanical behavior or materials, it becomes necessary to include two other types of forces: these are body moments and couple stresses ( surface couples, contact torques ).

The shape of the surface becomes concave to balance the centrifugal force against the other forces upon the liquid.

Commercially, the term filter is applied to membranes where the separation lattice is so thin that the surface becomes the main zone of particle separation, even though these products might be described as sieves.

* Within the region where radiative effects are important the description given by the idealized greenhouse model becomes realistic: The surface of the Earth, warmed to a temperature around 255 K, radiates long-wavelength, infrared heat in the range 4 – 100 μm.

A hydrophobic surface ( one that has an original contact angle greater than 90 °) becomes more hydrophobic when microstructured – its new contact angle becomes greater than the original.

However, a hydrophilic surface ( one that has an original contact angle less than 90 °) becomes more hydrophilic when microstructured – its new contact angle becomes less than the original.

This becomes a problem with disks that are a significant distance apart on the Ringworld surface, as they will have different velocities: same speed, different direction.

The lower part passes beneath the glans clitoridis and becomes united to its under surface, forming, with the inner lip of the opposite side, the frenulum clitoridis.

However, the distinction between mass and weight becomes important for measurements with a precision better than a few percent ( because of slight differences in the strength of the Earth's gravitational field at different places ), and for places far from the surface of the Earth, such as in space or on other planets.

In more complex profiles, the MPEG-4 decoder effectively becomes a rendering processor and the compressed bitstream describes three-dimensional shapes and surface texture.

As the number of degrees of freedom becomes arbitrarily large, a system approaches continuity ; examples include a string or the surface of a body of water.

Because obsidian is metastable at the Earth's surface ( over time the glass becomes fine-grained mineral crystals ), no obsidian has been found that is older than Cretaceous age.

Ozone is transparent to most UV-A, so most of this type of longer wavelength reaches the surface, and becomes the primary type of UV from the Sun to do so.

After a while, as the bucket continues to spin, the surface of the water becomes concave.

It later becomes the first spacecraft to successfully transmit data from the surface of another planet.

This lowering becomes a funnel, which continues descending while winds build near the surface, kicking up dust and other debris.

It extends into a star's surface until the gas becomes opaque, equivalent to an optical depth of approximately 2 / 3.

Reflectivity is the limit value of reflectance as the surface becomes thick ; it is the intrinsic reflectance of the surface, hence irrespective of other parameters such as the reflectance of the rear surface.

Don't fail to shorten cooking time by the use of aluminum foil cut slightly larger than the surface of steaks and chops.

It is believed that the surface of the star oscillates slightly, a common feature of red giant stars.

The seeds are long and thick, and straight to slightly curved with a longitudinally ridged surface.

Precision backgammon dice are made the same way ; they tend to be slightly smaller and have rounded corners and edges, to allow better movement inside the dice cup and stop forceful rolls from damaging the playing surface.

The vertical entry achieved by expert divers is largely an illusion created by starting the entry slightly short of vertical, so that the legs are vertical as they disappear beneath the surface.

A correctly seated primer will sit slightly below the surface of the case.

The height of falling water column maintains compression of the air in the top of the chamber, while an outlet, submerged below the water level in the chamber allows water to flow back to the surface at a slightly lower level than the intake.

25 minutes — sub-orbital spaceflight in an elliptic flightpath ; the flightpath is part of an ellipse with a vertical major axis ; the apogee ( halfway through the midcourse phase ) is at an altitude of approximately 1, 200 km ; the semi-major axis is between 3, 186 km and 6, 372 km ; the projection of the flightpath on the Earth's surface is close to a great circle, slightly displaced due to earth rotation during the time of flight ; the missile may release several independent warheads, and penetration aids such as metallic-coated balloons, aluminum chaff, and full-scale warhead decoys.

It is the second largest of the Great Lakes by volume and the third largest by surface area, after Lake Superior and Lake Huron ( and is slightly smaller than the U. S. state of West Virginia ).

To print an image lithographically, the flat surface of the stone plate is roughened slightly — etched — and divided into hydrophilic regions that accept a film of water, and thereby repel the greasy ink ; and hydrophobic regions that repel water and accept ink because the surface tension is greater on the greasy image area, which remains dry.

In 1791, the French Academy of Sciences selected the meridional definition over the pendular definition because the force of gravity varies slightly over the surface of the Earth, which affects the period of a pendulum.

Typically, gravitational fields change only slightly over short distances, and the Earth ’ s field is nearly uniform at all locations on the Earth ’ s surface ; therefore, an object ’ s weight changes only slightly when it is moved from one location to another, and these small changes went unnoticed through much of history.

The Earth's axis of rotation – and hence the position of the North Pole – was commonly believed to be fixed ( relative to the surface of the Earth ) until, in the 18th century, the mathematician Leonhard Euler predicted that the axis might " wobble " slightly.

When the water in paint media touches parchment's surface, the collagen melts slightly, forming a raised bed for the paint, a quality highly prized by some artists.

The strips are then placed side by side on a hard surface with their edges slightly overlapping, and then another layer of strips is laid on top at a right angle.

At the very end of the stroke, with the blade still in the water, the hands drop slightly to unload the oar so that spring energy stored in the bend of the oar gets transferred to the boat, which eases removing the oar from the water and minimizes energy wasted on lifting water above the surface ( splashing ).

( As measured on the geoid surface, the rate of TCG is very slightly faster than that of TT, see below, Relativistic relationships of TT.

From the point of view of an observer on the Earth's surface the second of TCG passes in slightly less than the observer's SI second.

It is composed of over 80 islands with 2, 528 km of coastline and a total surface area of 14, 760 km², making it slightly larger than the state of Connecticut.

In some cases, the grill can also function like a bakery oven by putting a drip pan below the cooking surface rack of a barbecue grill, as well as a baking sheet pan on top, combining two techniques simultaneously, or one right after the other, cooking twice, with a duration slightly longer than grilling.

The surface of the block is then inked with the use of a brayer, and then a sheet of paper, perhaps slightly damp, is placed over the block.

When a heat source's minimum temperature is high, the glassware can be suspended slightly above the surface of the plate.