For the young child this may be no more than providing food, light or movement.

For those who put their trust in Him He still says every day again: `` Let there be light ''!!

For if I knew the secret of letting this power in my body change directly into electricity, I could rent myself out to the electric companies and with just the power in my body I could light all the lights and run all the factories in the entire United States for some days.

For instance, a local society in the middle of a large city may have regular meetings with speakers, focusing less on observing the night sky if the membership is less able to observe due to factors such as light pollution.

For example, changes in signal strength may be used to specify the sounds to be reproduced by a loudspeaker, or the light intensity of television pixels.

For instance, 202 obsolete Panzer I light tanks were modified by removing the turret and were rebuilt as the Panzerjäger I self-propelled Skoda anti-tank gun.

For example, PAC expression in certain neurons has been shown to alter the grooming behavior in fruit flies exposed to blue light.

For the simple case where the direction of the light beam along the line SE is perpendicular to the motion of the observer then only light emitted at an angle equal to the arc cosine of the ratio of the observer's speed to the speed of light will reach the telescope.

For its time, the game was considered " light years " ahead of the Original Dungeons & Dragons.

For Satan himself transforms himself into an angel of light.

* For some reactions, the presence of electromagnetic radiation, most notably ultraviolet light, is needed to promote the breaking of bonds to start the reaction.

For example, the Diels-Alder reactions can be assisted by heat whereas the cycloaddition is selectively induced by light.

For example, the thermite reaction is used to generate light and heat in pyrotechnics and welding.

For identification by light microscopy, a scraping or swab of the affected area is placed on a microscope slide.

For example, diodes are used to regulate voltage ( Zener diodes ), to protect circuits from high voltage surges ( avalanche diodes ), to electronically tune radio and TV receivers ( varactor diodes ), to generate radio frequency oscillations ( tunnel diodes, Gunn diodes, IMPATT diodes ), and to produce light ( light emitting diodes ).

For light, we can often neglect one direction if the diffracting object extends in that direction over a distance far greater than the wavelength.

For waves which do not require a medium, such as light or gravity in general relativity, only the relative difference in velocity between the observer and the source needs to be considered.

For example, if a triangle is constructed out of three rays of light, then in general the interior angles do not add up to 180 degrees due to gravity.

For lower frequencies of EMR up to those of visible light ( i. e., radio, microwave, infrared ), the damage done to cells and also to many ordinary materials under such conditions is determined mainly by heating effects, and thus by the radiation power.

For instance, dark bands in the light emitted by a distant star are due to the atoms in the star's atmosphere.

For low-frequency radiation ( radio waves to visible light ) the best-understood effects are those due to radiation power alone, acting through the effect of simple heating when the radiation is absorbed by the cell.

For example, the sentence " The coat is red " has no observer, the sentence " We see the coat as red " ( where " we " indicates observers ) appears more specific in context as regards light waves and colour as determined by modern science, that is, colour results from a reaction in the human brain.

For example, the term subwavelength-diameter optical fibre means an optical fibre whose diameter is less than the wavelength of light propagating through it.

For an electromagnetic wave, the coherence time is the time over which a propagating wave ( especially a laser or maser beam ) may be considered coherent.

For a Gaussian beam propagating in free space, the spot size ( radius ) w ( z ) will be at a minimum value w < sub > 0 </ sub > at one place along the beam axis, known as the beam waist.

For a propagating electromagnetic wave, such as a surface wave propagating along the surface of the Earth, these parameters vary with frequency and direction.

* For signals in the UHF / VHF band propagating over the surface of the Earth the path loss increases with roughly 35 -- 40 dB per decade ( 10 -- 12 dB per octave ).

For instance, the Hoek experiment intended to detect interferometric fringe shifts due to speed differences of oppositely propagating light waves through resting water.

For example, the great arteries are viscolelastic vessels that act like a Windkessel, propagating ventricular contraction and smoothing out the pulsatile flow, and the smooth muscle within the tunica media contributes to this property.

For example, if one considers a Chern – Simons theory with gauge group G on a manifold with boundary then all of the 3-dimensional propagating degrees of freedom may be gauged away, leaving a 2-dimensional conformal field theory known as a G Wess – Zumino – Witten model on the boundary.

For the purpose of propagating Krishna-bhakti throughout India, he organized the Gaudiya Math, with sixty-four branches throughout the country.

For plane waves propagating in electromagnetic metamaterials, the electric field, magnetic field and wave vector follow a left-hand rule.

For example, when the Chandra X-ray Observatory observed the waves of pressure fronts propagating away from a black hole, the one oscillation every 10 million years was described by NASA as corresponding to the B fifty-seven octaves below middle C ( or B < sub >− 53 </ sub >).

For instance, the Taiwanese Fo Guang Shan, one of the largest Buddhist organisations in the world, together with Buddha's Light International Association, has a branch in Singapore ( Buddha Light Singapore ), tasked with propagating Zen practice ， the teaching of dharma and the bodhisattva path.

For the same reason, an electromagnetic wave propagating in the plane of the loop, with its magnetic field normal to that plane, is coupled to the magnetic field of the coil.

For discouragement, or the temptation to abandon our efforts, `` would show that one placed excessive trust in purely human means without thinking of the omnipotence of God, the irresistible efficacy of prayer, the action of Christ or the power of the Divine Spirit ''.

For example, the level of improvement noted in a recent experiment with a short course of immediate treatment for parent-child relationship problems compared favorably with the results reported by typical child guidance clinics where the hours spent in purely diagnostic study may equal or exceed the number of hours devoted to actual treatment interviews in the experimental project.

For purely inertial navigators, two techniques are available to accomplish the platform heading: Use of external or surveying equipment to establish proper heading ; ;

For the case of a purely inertial autonavigator consisting of three restrained gyros, a coordinate system is used where the sensitive axis of the X accelerometer is parallel to the east-west direction at the base point, and the Y accelerometer sensitive axis is parallel to the north-south direction at the base point.

For many years, the events described in " The Curse of Akkad " were thought, like the details of Sargon's birth, to be purely fictional.

For example, a purely dodecahedral virus has a T-number of 1 ( usually written, T = 1 ) and a truncated icosahedron is assigned T = 3.

For real values of, we have and for purely imaginary we have hence has a limit at 0 ( i. e., ƒ is complex differentiable at 0 ) if and only if.

For this reason, a number of martial arts schools have focused purely on therapeutic aspects, de-emphasizing the historical aspect of self-defense or combat completely.

For example, some may speak of predestination from a purely physical perspective, such as in a discussion of time travel.

For instance, in the transport equation, which describes a number of different transport phenomena, terms are separated into " convective " and " diffusive " effects, with " convective " meaning purely advective in context.

For instance, while peptic ulcer was once thought of as being purely caused by stress, later research revealed that Helicobacter pylori caused 80 % of ulcers.

For example, Sigmund Freud claimed to have dreamed purely in aural-images of dialogs.

For this reason all contact lenses, even purely cosmetic ones, are classified as medical devices in many countries ( USA, UK ).

For example, the similarity in autosomal DNA between the Emperor Keitai of Japan, and the current Emperor, approximately 1, 500 years later, is no more than would be expected between any two random persons of purely Japanese ancestry.

For a purely enabling ( and voluntaristic ) concept of power see the works of Anthony Giddens.

For example if he is " a piece up " ( i. e. has a material advantage ) a strategy is to play purely defensive moves and try to make all subsequent exchange of material equal or better, and then use that advantage at the end.

For example, ordinary differential equations and symplectic geometry are generally viewed as purely mathematical disciplines, whereas dynamical systems and Hamiltonian mechanics belong to mathematical physics.

For instance, a dipole using a fairly thin conductor will have a purely resistive feedpoint impedance of about 63 ohms at its design frequency.

For example, programs written in C ++ or Object Pascal can be purely procedural, or purely object-oriented, or contain elements of both paradigms.

For example, present-day descendants of these offspring can appear solely sub-Saharan in lineage, including having extremely afro-textured hair, or possess purely Nordic physical traits.

For a purely resistive load, a simpler equation can be used, based on the root mean square ( RMS ) values of the voltage and current waveforms:

For a purely viscous fluid, there will be a 90 degree phase lag of strain with respect to stress.

For example, current flowing in the antenna creates a purely magnetic component in the near-field, which then collapses as the antenna current begins to reverse, causing transfer of the field's magnetic energy back to electrons in the antenna as the changing magnetic field causes a self-inductive effect on the antenna that generated it.