The measured brightness temperature is a good approximation to the brightness temperature at the center of the lunar disk because of the narrow antenna beam and because the temperature distribution over the central portion of the moon's disk is nearly uniform.

A sufficiently good approximation for determining the end reflection losses R can be obtained from the angle independent Fresnel formula: Af.

A value of h close to zero gives a good approximation to the slope of the tangent line, and smaller values ( in absolute value ) of h will, in general, give better approximations.

A good approximation is Ramanujan's:

An implication of Einstein's theory of general relativity is that Euclidean space is a good approximation to the properties of physical space only where the gravitational field is weak.

The formulas are approximate, but this rough approximation is in fact relatively good and gives the right intuition, with the notion of polarity of the bond and some theoretical grounding in quantum mechanics.

The generalization of this statement, namely that the laws of special relativity hold to good approximation in freely falling ( and non-rotating ) reference frames, is known as the Einstein equivalence principle, a crucial guiding principle for generalizing special-relativistic physics to include gravity.

The coordinate transformation between these two systems is described to good approximation by ( apparent ) sidereal time, which takes into account variations in the Earth's axial rotation ( length-of-day variations ).

It is more like a physical quantity, and though it can be tempting to treat height as the vertical coordinate, in addition to the horizontal coordinates and, and though this actually is a good approximation of physical reality in small areas, it quickly becomes invalid for regional considerations.

The advances made in signal processors to synthesize an approximation of a good concert hall can now provide a somewhat more realistic illusion of listening in a concert hall.

Some eight decades later, Isaac Newton proved that relationships like Kepler's would apply exactly under certain ideal conditions that are to a good approximation fulfilled in the solar system, as consequences of Newton's own laws of motion and law of universal gravitation.

According to special relativity, the Galilean transformation is a good approximation only at relative speeds much smaller than the speed of light.

The presence of air resistance, for example, always distorts the shape, although at low speeds, the shape is a good approximation of a parabola.

A good first approximation of Wittgenstein's point is that meaning is a social event ; meaning happens between language users.

In the end, a fairly simple linear equation may suffice to give a good approximation of the bearing capacity of the soil.

Rayleigh scattering is a good approximation of the manner in which light scattering occurs within various media for which scattering particles have a small size parameter.

Contains a good description of the asymptotic behavior of Mie theory for small size parameter ( Rayleigh approximation ).

Yet for many practical purposes, the normal approximation provides a good approximation to the sample-mean's distribution when there are 10 ( or more ) independent samples, according to simulation studies and statisticians ' experience.

For processes that involve only suitably small and smooth spatial inhomogeneities and suitably small changes with time, a good approximation can be found through the assumption of local thermodynamic equilibrium.

Various heuristics and approximation algorithms, which quickly yield good solutions have been devised.

Perfect reconstruction is mathematically possible for the idealized model but only an approximation for real-world signals and sampling techniques, albeit in practice often a very good one.

However, if the separation between the massive bodies is much larger compared to their sizes, then to a good approximation, it is reasonable to treat the masses as point mass while calculating the gravitational force.

This simplification is often a good approximation in practice.

To a good approximation, the condition for the TE < sub > 11 </ sub > mode to propagate is that the wavelength in the dielectric is no longer than the average circumference of the insulator ; that is that the frequency is at least

( The best evidence is that he received a monthly wage of about $125, very good money in an era when top hands worked for $30 and found.

Seeing them waiting there at the foot of Emigrant Rock was so overwhelming that, for a good minute after they rounded the bend and started down the grade leading toward them, Matilda could not speak at all.

A card to Walter would get him an introduction to this Meredith, and that might be good for something.

Resisting the overwhelming temptation to flng himself out of that bristling death-trap, Tilghman deliberately engaged the nervous rancher in trivial conversation for a good ten minutes.

Something was beginning to stir and come alive in her, too ( it may have been there for a good while, since she was twenty now ; ;

These desires presuppose a sense of causally efficacious powers in which one is involved, some working for one's good, others threatening ill.

It ignores the sordid financial aspects ( quite conveniently, too, for his audience, who could indulge in moral indignation without visible, or even conscious, discomfort, their money from the transaction having been put away long ago in a good antiseptic brokerage ).

Not only did the ideal entrepreneur not produce the greatest good for the greatest number, he ended by destroying himself, by giving birth to monopoly capitalism.

They for their part are convinced that Holmes is too `` unorthodox '' and `` theoretical '' to make a good detective.

He is a dreamer of the good society with a plan to put into effect, and he is an individual craftsman with something to make for himself and the people of his time.

A smart, shrewd and ambitious young man, well connected, and with a knack for getting in the good graces of important people, he was bound to go far.

His father was a good friend of Rabbi Szold, and Joe lived with the Szolds for a while.

But both were high-spirited and vivacious, both had tempers to control, both loved languages, especially English and German, both were good teachers and wrote for publication.

Steele apparently professed his sentiments in this book too openly and honestly for his own good, since the government was soon to use it as evidence against him in his trial before the House.

Thoroughly modern in treatment, they are at the same time, full of simple sincerity which invariably characterizes genuine Negro folk-music and are by no means to be confused with the average ' Broadway Spirituals ' which depend for their racial flavor upon sundry allusions to the ' Amen Corner ', ' judgement Day, ' Gabriel's Horn, and a frustrated devil -- with a few random hallelujahs thrown in for good measure.

He also disliked Runyon, for no good reason other than the fact that the Demon's talent was so marked as to put him well beyond the Hetman's say-so or his supervision.

The second timely part of this sketch of literature and the search for identity has to do with the difference between good and enduring literary works and the ephemeral mass culture products of today.

There is a second feature of the influences of literature, good literature, on emotional life which may have some special value for our time.

Hearst hopped into a private railroad car with Max Ihmsen and made an arduous personal canvass for delegates in the western and southern states, always wearing a frock coat, listening intently to local politicians, and generally making a good impression.

`` It was mighty good for the old man to get out again ''.

He is uncompromising in assigning guilt to the man who finds it necessary to inflict or permit injury to one individual or group for the sake of a larger good.

All through The Republic, Plato attends to the way art relates to the general life and ultimately to a good life for his citizens.

There is impressive consistency between specific occupational preferences and the student's basic conception of what is for him a good way of life.

If the hardships of the winter at Valley Forge were trying for healthy men, they were, of course, much more so for those not in good health.