According to the Huygens – Fresnel principle, each point on the wavefront of a propagating wave can be considered to act as a point source, and the wavefront at any subsequent point can be found by adding together the contributions from each of these individual point sources.

According to Smithsonian magazine, the first Fresnel lens was used in 1823 in the Cordouan lighthouse at the mouth of the Gironde estuary ; its light could be seen from more than out.

According to the theories of Fresnel and Lorentz a relative motion to an immobile ether had to be determined by this experiment, however, the result was negative.

According to Neal McHenry the procedure to produce another high Hyper-Radiant Fresnel Lens is no longer known.

According to Chalmers, a naturalistic account of property dualism requires a new fundamental category of properties described by new laws of supervenience ; the challenge being analogous to that of understanding electricity based on the mechanistic and Newtonian models of materialism prior to Maxwell's equations.

According to observations of structures larger than solar systems, as well as Big Bang cosmology interpreted under the Friedmann equations and the FLRW metric, dark matter accounts for 23 % of the mass-energy content of the observable universe.

According to Maxwell's equations, a spatially varying electric field causes the magnetic field to change over time.

According to Maxwell's equations, the speed of light in a vacuum is a universal constant, dependent only on the electrical permittivity and magnetic permeability of free space.

According to the number of the endogenous variables and the number of equations, models can be classified as complete models ( the number of equations equals to the number of endogenous variables ) and incomplete models.

According to Maxwell's equations, an electric field ( u, v ) in two space dimensions that is independent of time satisfies

According to these equations, the rate of aftershocks decreases quickly with time.

According to Birkhoff's theorem, the Schwarzschild solution is the most general spherically symmetric, vacuum solution of the Einstein field equations.

According to the National Weather Service Handbook No. 1 – Facsimile Products, the primitive equations can be simplified into the following equations:

According to the equations above an inductor of + j 507. 32 Ω is needed.

According to propositions of geometry, any sensing must include at least one lateration and ( n + 1 ) determining equations for an n-dimensional problem.

According to Einstein's field equations of general relativity, the structure of spacetime is affected by the presence of matter and energy.

According to Computer Gaming World, Blackley did not seek to represent the equations with perfect accuracy, and was satisfied when the results were consistent and the sensation that they generated was correct.

According to Frans van Schooten, if the various relations between straight lines in a figure are written down in the form of equations or proportions, then the combination of these equations in all possible ways, and of new equations thus derived from them leads to the discovery of innumerable new properties of the figure, and here we have " porisms.

According to Maxwell's equations in the late 19th century, light was thought to consist of waves of electromagnetic fields and matter consist of localized particles.

According to Bjorken and Drell, it would make physical sense to sidestep ultraviolet divergences by using more detailed description than can be provided by differential field equations.

According to the CIE ( the International Commission on Illumination ), reflectivity is distinguished from reflectance by the fact that reflectivity is a value that applies to thick reflecting objects.

According to the official record sheet from the session, however, the musicians on the famous recording are:

According to the press note issued by the government, those companies will convert their first balance sheet as at April 1, 2011, applying accounting standards convergent with IFRS if the accounting year ends on March 31.

According to Landmark Education's fact sheet, its employees own all the stock of the corporation,

According to Dr. John Tennison, " although some Boogie Woogie bass figures were present in prior sheet music, the thing that made ' The Fives ' so special was the greater amount and variety of Boogie Woogie bass figures that were present in the music as compared to Boogie Woogie bass figures that had been present in previously published sheet music, such as the 1915 " Weary Blues " by Artie Matthews.

According to Tinker and Lowry, " a draft of the first twenty-eight lines of the poem " was written in pencil " on the back of a folded sheet of paper containing notes on the career of Empedocles ".

According to Mason, the band arrived at one gig in Aachen, Germany, only to discover they had left the sheet music behind, forcing tour manager Tony Howard to go back to London and get it.

According to a press fact sheet from SAP, " SAP is the only enterprise applications software vendor that is both building service-orientation directly into its solutions and providing a technology platform SAP NetWeaver and guidance to support companies in the development of their own service-oriented architectures spanning both SAP and non-SAP solutions.

According to Otto Braun, Lin was " politically ... a blank sheet on which Mao could write as he pleased " during this period.

According to the sheet music, it was " written around a Fort Niagara fragment " by Robert Lloyd, " Army song leader.

According to the original Vehicle Production Broadcast sheet provided by Rampage enthusiast John Arnold, the base-model ZH28 trucks were then fitted with all of the following:

According to Clinton Heylin, the original handwritten manuscript to " Song for Woody " bears the following inscription at the bottom of the sheet: " Written by Bob Dylan in Mills Bar on Bleecker Street in New York City on the 14th day of February, for Woody Guthrie.

According to the Intergovernmental Panel on Climate Change ( IPCC ), loss of Antarctic and Greenland ice sheet mass contributed, respectively, about 0. 21 ± 0. 35 and 0. 21 ± 0. 07 mm / year to sea level rise between 1993 and 2003.

According to Borland, " My first teacher ingrained playing by ear so much that when my jazz teacher gave me a sheet of music and a tape to go with it, I would learn the tape instantly and go in and play it, but I couldn't make myself learn the music.

According to the sheet music published at Musicnotes. com by Alfred Publishing, the song is set in common time, with a moderately dance-oriented tempo of 116 beats per minute.

According to the composer's son-in-law Yevgeny Chukovsky, the original title sheet for this symphony read not " 1905 " but " 1906 ," the year of the composer's birth.

According to him, language is made up of signs and every sign has two sides ( like a coin or a sheet of paper, both sides of which are inseparable ):

According to a NOAA 2009 fact sheet, " Seventy percent of nutrient loads that cause hypoxia are a result of agricultural runoff of this vast drainage basin " which includes the heart of U. S. agribusiness, the Midwest.

According to Car and Driver, Lexus is working on a " clean sheet " replacement for the SC and the convertible theme will be retained, with a soft top instead of the hard top setup currently being used.

According to the 2nd edition character sheet for Nodwick, if he ever encounters a deity, there is a 20 % chance that the deity in question recognizes him from his all-too frequent trips to the hereafter.

According to the character's model sheet, her name in this continuity is spelled " Carlee ".

According to an internal report dated June 30, 2010, the problem " is likely the result of damage to the tube sheet bores caused by the cleaning operation in a previous work series ".

According to the sheet music published at Musicnotes. com by Alfred Publishing, the song is set in the time signature of common time, with a metronome of 120 beats per minute.

According to the proposed terms sheet, Vizrt fully acquired LiberoVision in 2012.