Help


[permalink] [id link]
+
Page "Snell's law" ¶ 25
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

Since and propagation
Since then, there has been a notable increase in the number of stations and also the accumulation of additional data and the development of new techniques for using it, leading to a better understanding of propagation phenomena.
Since the two parents were genetically distant, many of the crosses showed hybrid vigour and were selected for further propagation.
Since the gaussian beam model uses the paraxial approximation, it fails when wavefronts are tilted by more than about 30 ° from the direction of propagation.
Since the propagation constant is a complex quantity we can write:
Since the geometric line of sight passes at varying heights over the Earth, the propagating radio wave encounters slightly different propagation conditions over the path.
Since cores are often struck on an edge with a suitable angle ( x < 90 °) for flake propagation, the result is that only a portion of the Hertzian cone is created.
Since these frequencies propagate by ground wave only, the precision of time signals is not affected by varying propagation paths between the transmitter, the ionosphere, and the receiver.
Since precipitation exists in those circumstances, the abnormal propagation echoes are then mixed with real rain and / or targets of interest, which make them more difficult to separate.
Since radio propagation is not fully predictable, such services as emergency locator transmitters, in-flight communication with ocean-crossing aircraft, and some television broadcasting have been moved to communications satellites.
Since sine waves propagate without changing form in distributed linear systems, they are often used to analyze wave propagation.
Since the UHF band has different radio propagation characteristics, short-range use of FRS may be more predictable than license-free radios operating in the HF CB band.
Since f < sup > 0 </ sup >< sub > k </ sub > is a constant it does not contribute to the error on f. Therefore, the propagation of error follows the linear case, above, but replacing the linear coefficients, A < sub > ik </ sub > and A < sub > jk </ sub > by the partial derivatives, and.
Since many bio-agents reproduce rapidly and require minimal resources for propagation, they are also a potential danger in a wide variety of occupational settings.
Since SMS messages only require an instant to send, a brief peak in radio propagation ( such as due to changing cloud cover ) is often enough to get a message sent.
Since propagation from seed has not yet been successful, all Double Chaconias have been propagated by cuttings from this individual.
Since are mass eigenstates, their propagation can be described by plane wave solutions of the form
Since the spontaneous rise and propagation of Liquid throughout the rave culture in the 1980s and early 1990s, the root origins of the dance have ultimately remained a source of contention between both those involved directly with the dance as well as those outside of the immediate culture.
Since they don't have to wait for a clock pulse to begin processing inputs, asynchronous circuits can be faster than synchronous circuits, and their speed is theoretically limited only by the propagation delays of the logic gates.
Since the mantle is known to be solid ( it supports the propagation of shear waves ), it must be behaving as a rheid.
Since the electrical impulse can no longer use the preferred pathway across the bundle branch, it may move instead through muscle fibers in a way that both slows the electrical movement and changes the directional propagation of the impulses.
Since its rediscovery seeds have been collected for controlled propagation and preservation.
Since its rediscovery on the BBC2 documentary Funk Me Up Scotty and propagation over the Internet, it has become a relatively well-known example of 1960s camp.
Since there are very little or no pressure differences between the different regions of the gas, there is no shock wave propagation and hence no knocking.

Since and vector
Since we are assuming circular motion, let r ( t ) = R · u < sub > r </ sub >, where R is a constant ( the radius of the circle ) and u < sub > r </ sub > is the unit vector pointing from the origin to the point mass.
Since at a minimum the starting code address vector must always be valid on reset, systems commonly included some nonvolatile memory ( e. g. ROM ) starting at address zero to contain the vectors and bootstrap code.
Since the diagonal vector has a vertical component, the drive phase continues to provide some support against gravity and can be regarded as an extension of the support phase.
Since this construction works for any vector space V, we conclude that T is a functor from K-Vect to K-Alg.
Since the physicist's concept of force has a direction and a magnitude, it may be seen as a vector.
Since the typical vector operation would involve loading a small set of data into the vector registers and then running several operations on it, the vector system of the new design had its own separate pipeline.
Since this is an electromagnetic wave each electric field vector has a corresponding, but not illustrated, magnetic field vector that is at a right angle to the electric field vector and proportional in magnitude to it.
Since the Poynting vector only occurs in Poynting's theorem as a divergence ∇ • S, the Poynting vector S is arbitrary to the extent that one can add a curl of a field F to S,
Since elements of W are necessarily elements of V, axioms 1, 2 and 5-8 of a vector space are satisfied.
Since then, the supercomputer market has focused much more on massively parallel processing rather than better implementations of vector processors.
Since a vector field is quite difficult to visualize at first, in elementary physics one may instead visualize this field with field lines.
Since the intensity or irradiance, I, of light is proportional to the square of the electric-field vector, the ellipticity becomes:
Since all these values are distinct, this is usually done using a bit vector.
However, the more difficult proof of the converse ( see below ) makes use of the vector space structure: Since both of the factors are vector spaces over Q, the tensor product can be taken over Q.
Since version 3. 0, Leveller includes vector shapes, which can be used for both modeling and coloration.
The set of ( p < sub > i </ sub >, n < sub > i </ sub >) is thus a sampling of a continuous vector field V. The implicit function f is found by integrating the vector field V. Since not every vector field is the gradient of a function, the problem may or may not have a solution: the necessary and sufficient condition for a smooth vector field V to be the gradient of a function f is that the curl of V must be identically zero.

Since and is
Since the Supreme Court's decision of that year this is more doubtful ; ;
( Since the time-span of the nation-state coincides roughly with the separate existence of the United States as an independent entity, it is perhaps natural for Americans to think of the nation as representative of the highest form of order, something permanent and unchanging.
Since it is not far from Viareggio, he will visit Puccini's house, as he never fails to do, to pay his respects to the memory of the composer of La Boheme, which he considers one of Puccini's masterpieces.
Since attack serves to stimulate interest in broadcasts, I added to my opening statement a sentence in which I claimed that German youth seemed to lack the enthusiasm which is a necessary ingredient of anger, and might be classified as uninterested and bored rather than angry.
Since the air is a continuum, the network of communication remains intact regardless of the positions or motions of the points ( the people ) in the net.
Since the hazards of poor communication are so great, p can be justified as a habitable site only on the basis of unusual productivity such as is made available by a waterfall for milling purposes, a mine, or a sugar maple camp.
Since the difficulty of drawing the net is great, we will merely discuss it.
Since a civilizational crisis involves also a crisis in private interests and in the ruling class, reaction is normally found among those who feel themselves to be among the ruling class.
Since civilizational change is the most difficult to perceive and analyze, it seldom is given adequate attention.
Since the slogans have little application to reality and are sanctimonious to boot, the applause is faint even in areas of the world where we should expect to find the greatest affection for free government.
Since more is known about Quiney than about any other acquaintance of Shakespeare in Stratford, his career may be followed to its sudden end in 1602.
Since the great flood of these dystopias has appeared only in the last twelve years, it seems fairly reasonable to assume that the chief impetus was the 1949 publication of Nineteen Eighty-Four, an assumption which is supported by the frequent echoes of such details as Room 101, along with education by conditioning from Brave New World, a book to which science-fiction writers may well have returned with new interest after reading the more powerful Orwell dystopia.
Since Laos is of no more purely military value to Moscow itself than it is to Washington, this approach might be expected to head off Mr. Khrushchev for the moment.
Since little is known about autism, and almost nothing has been written for the layman, we'd like to share one experienced mother's comments.
Since the work is done by hand, the only limitation, it is said, `` is that of human conception ''.
Since the apparatus is new, it requires experimentation and changes in technique.
Since the obvious is not always true, the Republican National Committee wisely analyzed its defeat of last autumn and finds that it occurred, as suspected, in the larger cities.
Since he has just shown who is top dog, he may not be ready to receive this highest honor in the gift of the Soviet people.
Since appeals to morality, to humanity, and to sanity have had such small effect, perhaps our last recourse is the deterrent example.
Since the goal of our international planners is a World Government, this Atlantic Community would mark a giant step in that direction for, once American economic autonomy is absorbed, a larger grouping is a question of time.

0.546 seconds.