If the angles are too steep or too shallow, the light will pass through and not be reflected back toward the viewer.

If Viola's depictions of emotional states with no objective correlative -- emotional states for which the viewer has no external object or event to understand them by — are one feature of many of his works, another, which has come to the forefront, is his reference to medieval and classical depictions of emotion.

If eyestrain and distortion are to be avoided, each of the two 2D images preferably should be presented to each eye of the viewer so that any object at infinite distance seen by the viewer should be perceived by that eye while it is oriented straight ahead, the viewer's eyes being neither crossed nor diverging.

If it is close, it will appear stretched out, as if it is very close to the viewer.

If the viewer stares at this image for 20 – 60 seconds and stares at a white object a negative afterimage will appear ( in this case being cyan on magenta ).

If the virtual 3D objects reconstructed by the autostereogram viewer's brain were real objects, a second viewer observing the scene from the side would see these objects floating in the air above the background image.

Kac intended to present the viewer with a philosophical problem, a dichotomy: If the viewer disagrees with allowing man to have dominion over nature as the quote from the Bible suggests, then in order to destroy the idea ( i. e. activate the UV light which causes mutation in the genes, thereby altering the statement ), he must assert his own power over nature, thereby in a way contradicting himself.

If a viewer then watches this segment with a dark lens over the left eye, then when the right eye sees the image recorded when the camera is at Y, the left eye will be a few milliseconds behind and will still be seeing the image recorded at X, thus creating the necessary parallax to generate right and left eye views and 3D perception, much the same as when still pictures are generated by shifting a single camera.

If the prize card was for a gag prize or " forfeit one gift ", the home viewer received $ 100.

If it happened to be a wild card, the home viewer won $ 500.

If eyestrain and distortion are to be avoided, each of the two 2D images preferably should be presented to each eye of the viewer so that any object at infinite distance seen by the viewer should be perceived by that eye while it is oriented straight ahead, the viewer's eyes being neither crossed nor diverging.

" If The World won, Wolff read a brief hate e-mail from a viewer.

If the TV is turned on and the viewer doesn't identify themselves, the meter flashes to remind them.

If the center is oriented so that the lowest-priority of the four is pointed away from a viewer, the viewer will then see two possibilities: If the priority of the remaining three substituents decreases in clockwise direction, it is labeled R ( for Rectus, Latin for right ), if it decreases in counterclockwise direction, it is S ( for Sinister, Latin for left ).

If it rotates the light clockwise ( as seen by a viewer towards whom the light is traveling ), that enantiomer is labeled (+).

In works such as If Every Girl Had a Diary, Sadie uses the limitations of the PixelVision to get extreme close ups of her face, eyes, fingers, and other extremities to bring the viewer to a much more intimate and personal level with Sadie, literally pulling the audience right next to her face as she narrates her life and thoughts.

If the viewer looks carefully, he / she can see a similar character in " Theater!

His 2005 exhibition at Galerie Lelong in New York City, If you see something …, his 2009 installation in the Polish Pavilion for the 53rd Venice Biennale, Guests, and his 2009-2010 interior projection at the ICA Boston, … Out of here, all position the viewer in relation to the consequences of global capitalism and the conflict produced as a result of the inequitable distribution of resources and opportunities.

If you were a man '' --

If she, Pamela, were being held responsible for his crimes, then hers must be the final act of expiation.

If someone were to drop a match in here, this place would go up like a haystack ''.

If the other pilots were worried, they did not show it.

If it were the enemy, tactically his position was correct.

If it were not for an old professor who made me read the classics I would have been stymied on what to do, and now I understand why they are classics ; ;

If it were not that I knew who it was I could have mistaken it for my Aunt so well did her clothes fit him.

If an automobile were approaching him, he would know what was required of him, even though he might not be able to act quickly enough.

If there were only darkness, all would be clear.

If there were only the mess, all would be clear ; ;

If these people were denied a voice ( do they have a moral right to a voice??

If we were creating a wholly new society, we could insist that our social, political, economic and philosophic institutions foster rather than hamper man ; ;

If living Jews were unavailable for study, the Bible was at hand.

If his scholarship and formal musicianship were not all they might have been, Mercer demonstrated at an early age that he was gifted with a remarkable ear for rhythm and dialect.

If she were not at home, Mama would see to it that a fresh white rose was there.

If the Stearns were not there, grace would be omitted.

If anything, the conservative Democrats were more opposed to Hearst than the Republicans.

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.

If his circumspection in regard to Philip's sensibilities went so far that he even refused to grant a dispensation for the marriage of Amadee's daughter, Agnes, to the son of the dauphin of Vienne -- a truly peacemaking move according to thirteenth-century ideas, for Savoy and Dauphine were as usual fighting on opposite sides -- for fear that he might seem to be favoring the anti-French coalition, he would certainly never take the far more drastic step of ordering the return of Gascony to Edward, even though, as he admitted to the English ambassadors, he had been advised that the original cession was invalid.

If there were no West Berlin problem, imperialist quarters would have invented an excuse for stepping up the armaments race to try to solve the internal and external problems besetting the United States and its NATO partners.

If the new Soviet series has followed the general pattern of previous Russian tests, the shots were roughly half fission and half fusion, meaning a fission yield of 30 to 40 megatons thus far.

If the Hessian troops sent here willy-nilly by the Hessian Government to fight for England in the 1770's were mercenaries, what shall we call the UN troops sent to the Congo willy-nilly by their governments to fight for the United Nations??

If the UN troops are not mercenaries then the Hessians were not mercenaries either.

If he were to go with White, he would be out there two days, not just listening in the dark at some point between here and Papa-san, but moving ever deeper into enemy land -- behind Papa-san -- itself.