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It is recommended to use lens shade # 6 or darker for cutting to prevent the retina of your eye being " flashed " or burned.
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is and recommended
New obligational authority for 1961 recommended in this budget for aircraft procurement ( excluding amounts for related research and construction ) totals $4,753 million, which is $1,390 million below that enacted for 1960.
Of course, if you want to throw all caution to the winds and rent an Imperial or Cadillac limousine just for you and your bride, you'll have a memorable tour, but it won't be cheap, and it is not recommended unless you own a producing oil well or you've had a winner in the Irish Sweepstakes.
Therefore, it is recommended that in such cases the sample be replaced, or if used, the results of dimensional change or dimensional restorability tests be considered as indicative only.
Mr. Schaefer also recommended that the snow emergency route plan, under which parking is banned on key streets and cars are required to use snow tires or chains on them, should be `` strictly enforced ''.
The ANOVA F – test ( of the null-hypothesis that all treatments have exactly the same effect ) is recommended as a practical test, because of its robustness against many alternative distributions.
Following each individual brick should be a layer of adobe mortar, recommended to be at least an inch thick to make certain there is ample strength between the brick ’ s edges and also to provide a relative moisture barrier during the seasons where the arid climate does produce rain.
In the 1998 version, Alliaceae were a distinct family ; in the 2003 version, combining the Alliaceae with the Agapanthaceae and the Amaryllidaceae sensu stricto was recommended but optional ; in the 2009 version, only the broad circumscription of the Amaryllidaceae is allowed, with the Alliaceae reduced to a subfamily, Allioideae.
It is recommended to choose a family where the parents trust in the Dharma and to reincarnate with the will to care for the welfare of all beings.
The symbol ua is recommended by the International Bureau of Weights and Measures, and the international standard ISO 80000, while au is recommended by the International Astronomical Union, and is more common in Anglosphere countries.
In Portuguese, estado-unidense ( or estadunidense ) is the recommended form by language regulators but today it is less frequently used than americano and norte-americano.
: To continue to select and reinforce the often less dominant " good use ", it is recommended to repeatedly suggest, by thinking to oneself, a tailored series of " Orders " or " Directions.
Paracetamol has few side effects and is regarded as safe, although intake above the recommended dose can lead to liver damage, which can be severe and life-threatening, and occasionally kidney damage.
is and use
But apart from racial problems, the old unreconstructed South -- to use the moderate words favored by Mr. Thomas Griffith -- finds itself unsympathetic to most of what is different about the civilization of the North.
The sequence is determined by chance, and Mr. Cunningham makes use of any one of several chance devices.
This is the rhetoric of righteousness the beatniks use in defending their way of life, their search for wholeness, though their actual existence fails to reach these `` religious '' heights.
But what a super-Herculean task it is to winnow anything of value from the mud-beplastered arguments used so freely, particularly since such common use is made of cliches and stereotypes, in themselves declarations of intellectual bankruptcy.
`` The argument that is cutting most ice is that Hearst is the only candidate who is fighting the trusts fearlessly and who would use all the powers of government to disrupt them if he were elected.
for if this can be proved we shall surely be the gainers -- I mean, if there is a use in poetry as well as a delight ''.
It is even true that some among them use the sheer fact of conformity -- `` everyone does it '' -- as a criterion for conduct.
Without a precise knowledge of Germanic philology, however, it is debatable whether their use was not more often a source of confusion and error than anything else.
Often the historian must consider the use of intuition or instinct by those individuals or nations which he is studying.
Easily the best known of these three novels is The Space Merchants, a good example of a science-fiction dystopia which extrapolates much more than the impact of science on human life, though its most important warning is in this area, namely as to the use to which discoveries in the behavioral sciences may be put.
The narrator is an Alsatian serving with the French Army, and he has the same name ( Berger ) that Malraux himself was later to use in the Resistance ; ;
And by a skillful and unobtrusive use of imagery ( the enclosure is called a `` Roman-camp stockade '', the hastily erected lean-to is a `` Babylonian hovel '', the men begin to look like `` Peruvian mummies '' and to acquire `` Gothic faces '' ), Malraux projects a fresco of human endurance -- which is also the endurance of the human -- stretching backward into the dark abyss of time.
is and lens
The frequency used for these experiments is 15 mc. and the transducer is a specially cut crystal with an epoxy lens capable of providing beam diameters smaller than one millimeter.
Cascading single stages by coupling lens systems is rather inefficient as the lens systems limit the obtainable gain quite severely.
Each frame comes between the light and the lens and is individually projected on the screen, at the rate, for silent movies, of 16 frames per second, and, for sound films, 24 frames per second.
There is ongoing discussion among academics over the nature of the Nimrud lens, a piece of quartz unearthed by Austen Henry Layard in 1850, in the Nimrud palace complex in northern Iraq.
Monochromatic aberrations are caused by the geometry of the lens and occur both when light is reflected and when it is refracted.
If there is refraction at a collective spherical surface, or through a thin positive lens, O ' 2 will lie in front of O ' 1 so long as the angle u2 is greater than u1 ( under correction ); and conversely with a dispersive surface or lenses ( over correction ).
This hole is termed the stop or diaphragm ; Abbe used the term aperture stop for both the hole and the limiting margin of the lens.
The laser light is emitted ( 1 ) through the front lens ( 6 ) of the anemometer and is backscattered off the air molecules ( 7 ).
A burning glass or burning lens is a large convex lens that can concentrate the sun's rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface.
In simple craters, the original excavation cavity is overlain by a lens of collapse breccia, ejecta and melt rock, and a portion of the central crater floor may sometimes be flat.
The lens is almost spherical, which is most efficient at focusing the minimal light that reaches deep water.
Generally, an image of a small object is made using a lens to focus the illuminating radiation, as is done with the rays of the visible spectrum in light microscopy.
In 1772, Antoine Lavoisier used a lens to concentrate the rays of the sun on a diamond in an atmosphere of oxygen, and showed that the only product of the combustion was carbon dioxide, proving that diamond is composed of carbon.
Although a lens can precisely focus at only one distance at a time, the decrease in sharpness is gradual on each side of the focused distance, so that within the DOF, the unsharpness is imperceptible under normal viewing conditions.
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