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# Perceived when waves of light strike the retina is; also has properties of hue, intensity and value.

### Digital Media Art EOC Study Set 2 Flashcards Quizle

• Perceived when waves of light strike the retina is; also has properties of hue, intensity and value. Color Being concerned with a list of all the things you see in a work of art when critiquing
• The retina is lined with a variety of light sensing cells known as rods and cones. While the rods on the retina are sensitive to the intensity of light, they cannot distinguish between lights of different wavelengths. On the other hand, the cones are the color-sensing cells of the retina
• ed visually by measurement of hue, saturation and brightness of the reflected light. It is a series of wave lengths which strike out retina. Every ray of light co
• Hue is the difference between basic color names such as red, green and blue. In a color wheel, hue is represented around the circumference of the wheel. As such, it is represented by an angle specifying the location on the wheel. The angle can range from 0 (red) to 359 (also red!)
• ance, color and objects in three dimensional space.. Since ancient times the eye has been an icon for our consciousness and seeing the metaphor for intelligence — and with good.
• Using an RGB value 50% between black and white with the sRGB curve gives an L* value of 53.4, and using a pure 2.2 gamma gives an L* value of 53.8, so slightly too light in both cases. However even if we were to use a value with an exact L* of 50, the bigger question is whether middle gray on the monitor even corresponds with middle gray in the.
• Light contains the visible spectrum of colour; energy that travels at different wavelengths. As the waves of light enter the eye and strike the retina they are interpreted by the brain as colour. These individual wavelengths are communicated to the brain from colour receptors - the rods and cones which separate response

### Physics Tutorial: Visible Light and the Eye's Respons

1. Shade Selection Page: 9 of 40 Figure 7 Chroma 2.4.3 Value Value is the relative lightness or darkness of a color. A light tooth has a high value; a dark tooth has a low value. It is not the quantity of the color gray, but rather the quality of brightness on a gray scale colorless distinction
2. When all the wavelengths of the visible light spectrum strike your eye at the same time, white is perceived. The sensation of white is not the result of a single color of light. Rather, the sensation of white is the result of a mixture of two or more colors of light. Thus, visible light - the mix of ROYGBIV - is sometimes referred to as white.
3. Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400-700 nm, or 4.00 × 10 −7 to 7.00 × 10 −7 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths)
4. The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light.A typical human eye will respond to wavelengths from about 380 to about 750 nanometers. In terms of frequency, this corresponds to a band in the vicinity of 400-700 THz
5. As the waves of light enter the eye and strike the retina they are interpreted by the brain as colour. These individual wavelengths are communicated to the brain from colour receptors - the rods and cones which separate response
6. Color is a perception based on electromagnetic waves. Natural properties of these waves are,for example intensity and frequency. If we sweep the frequency of a lightwave from infra-red to ultra-violet, we would visually perceive a color variation along the rainbow colors

### art-4 - VISUAL ARTS Visual Arts 1 Module 11 Elements and

For room temperature objects they are absorbed by the atoms and molecules of the object and reradiated away as infrared light man eye. Visible light is perceived in a variety of colors, from the longest visible wavelength of red (700 nm) to shorter wavelengths of orange, yellow, green, blue, and violet (400 nm). Although white light has an equal mixture of all the wavelengths, black is a result of no light. Luminance and Brightness Luminance (L) or luminous intensity (LI

### Hue, Saturation and Brightness (HSV

If one assigns an RI value to each ray, it is no different than assigning a color value to each ray. It follows that as the RI varies, the color will also vary. For light entering the stone parallel to the c-axis, only the o-ray would be obtained. When the light strikes facet W, however, the direction is changed Therefore, color is the perception of a visible light wave's frequency. Lesson Summary. White light is a combination of all the frequencies of visible light. When white light strikes an object. Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages

Like a camera, the eye also has a mechanism to control the amount of light entering into it. The iris serves this purpo se. It is a disc-like coloured membrane lying between the cornea and the lens. It controls the amount of light entering the eye by regulating pupil dilation. In dim light the pupil dilates; in bright light it contracts -2) transduction (receptors)-3) coding (frequency)-4) interaction (physiological and psychological) The Visual System: -cornea is the outer layer of the eye the focuses light, has a transparent covering (protection), plays a major part in focusing an image to the back of the eye-iris is the coloured section of eye, and the pupil is the black hole in the iris that allows light to strike the. Of course, our ability to process light waves, whether reflected off of an object or emitted from a light source, depends on the retina of the human eye and the visual cortex of the brain

### handprint : light and the ey

1. g into the eye are not evenly distributed over the retina. Thus, the intensity of light along a certain line (vertical, horizontal, or at an angle) may be increased, while light along other slopes is di
2. How to get the x axis values of your graph. Theoretically speaking, your prism will separate the light into specific wavelengths and each one will have a unique 'H' or 'hue' value, related by. Hue = (650 - wavelength)*240/ (650-475) more about it here
3. The human eye's three-value color system has been imitated and exploited—by inventors of color scanners, monitors, and printers. The color rendering methods used by these devices are based directly on our response to stimuli of red, green, and blue light. Like the human eye, these devices must also process a large amount of color informatio
4. ous intensity of a one common candle. Light waves travel 299,792 km per second in a vacuum, (and somewhat slower in various media such as air and water), and those waves arrive at the eye as long (red), medium (green), and short (blue) waves
5. Tone value (dot area) Represented by percentages of a color, such as 25%, 50%, 75% etc. Equal values for each color are critical for gray balance and proper hue of overprint colors on a press. Most of the detail in a printed image is located in the tonal area
6. Transcript and Presenter's Notes. Title: Physical Nature of Light. 1. Physical Nature of Light. 2. Wave-Particle Duality. Light has a dual nature. In some cases it behaves as a wave. In other cases it behaves as a particle

### Chapter 1: Color Management - Chris Brejo

Chapter 7 . VISION. P hotoreception is a particularly important sense for most primates, including man, but it is not unique to primates or even mammals. Even mollusks have photoreceptors, but one may question whether they possess vision in the same sense as we have it. Most objects reflect light, and because light travels at high speed, it is possible to nearly instantly assess their shape. The central fovea is located in an area near the center of the retina, and positioned directly along the optical axis of each eye. Known also as the yellow spot, the fovea is small (less than 1 square millimeter), but very specialized. These areas contain exclusively high-density, tightly packed cone cells (greater than 200,000 cones per square millimeter in adult humans; see Figure 4)

NATURE OF COLOR • Light is a form of energy. it is that part of the spectrum of electromagnetic radiation that our eyes are sensitive to. Radio waves and • X-rays, as well as ultraviolet and infrared radiation, are all part of the spectrum of electromagnetic radiation • The human visual system is only capable of sensing a very narrow band of wavelengths in the approximate range 360-780nm Therefore, color is the perception of a visible light wave's frequency. Lesson Summary. White light is a combination of all the frequencies of visible light. When white light strikes an object. Ambient light rays can strike the bird's eye from any direction, and they will reflect off of the bird's eye in just as many directions. As shown in Figure 2.6.5, below, those rays coming from the bird's eye that happen to strike the lens (focusing element) are refracted upon entering and leaving the glass element so as to be focused on a.

### Datacolor - an overview ScienceDirect Topic

Such light is said to be unpolarized. Should the light wave be forced to vibrate in a single plane, the ray is polarized. When light enters a substance of greater optical density, it is slowed because the electron density is greater and thus there is greater interference with the E portion of the wave Hue: the color itself, the distinctive quality by which one can distinguish one color from another, e.g., red, blue, green, blue.; Value: the brightness of the hue, the quality by which one distinguishes a light color from a dark one, in the range from white to black.; Chroma or intensity: the quality that distinguishes a strong color from a weak one, the departure of a color sensation from. Once can also surmise hat the properties of these rays, with reference to polarization, extend to tertiary rays, etc. I intend shortly to publish the results at which I have arrived concerning these different points. (2) On a New Species of Light (March 23, 1903 Sandy stomatopods, light markings on patterned stomatopods, rubble pieces and sand occupy a similar region of colour space, implying a match in hue and saturation for a trichromatic fish predator.

Patterns. Rhythm. You can use these to shape the user experience of your web or app. Through repetition, patterns, or rhythm, you set the mood of the user interface and use these elements to either reinforce your message and/or create the look and feel of your product. Repetition is the simplest element you can use Neogonodactylus oerstedii 28 are shallow water (<10 m), Caribbean stomatopods that exhibit habitat-specific variation in the colour of the meral spot 25.Stomatopods collected from sandy, rubble habitats have lighter meral spots than those collected from adjacent seagrass habitats 25.This variation in total reflectance (c.f. luminance) may increase contrast between the signal and the background. You can't freeze a photon, in the same sense you can freeze a single particle. Freezing something implies taking enough energy away that it undergoes a phase transition and the atoms becomes fixed in place in a lattice aka a solid. However, in a c.. Black is not a colour no. Black is in the same category as white and grey. It is classed as a shade. Black absorbs every colour wavelength from the spectrum of light. Our eyes perceive any substance or material that absorbs all wavelengths from li.. A relationship between intensity variation and artistic merit has previously been reported by Juricevic et al. (2010), and our findings generalize this finding to beauty ratings; also Spehar and Taylor (2013) and Spehar et al. (2015) found results similar to those of Juricevic et al. (2010)

From Philip Cunningham: The human eye, like the human brain, is a wonder. (Which allegedly required no actual design) With references, courtesy Philip Cunningham: The human eye consists of over two million working parts making it second only to the brain in complexity (1). The retina covers less than a square inch, and contains 137 million. Answers is the place to go to get the answers you need and to ask the questions you wan

There is only darkness in the water and the sky. The light comes from the multitude of cherry blossoms on the trees, which look little different than the phony cherry blossoms by the theatre. There are also harsh electric light bulbs, in several colors, which cast a strange hue on the whiteness of the cherry blossoms and give an unreal quality For light text on a dark background, use ^0.57 for Ytext and ^0.62 for Ybackground. Subtract Ytext from Ybackground, then {insert scale method} to scale the contrast value. Always subtract the Ytext value from the Ybackground value. For light text on a dark background, this will generate a negative number

### Physics Tutorial: The Electromagnetic and Visible Spectr

Introduction. Active sensory systems have been well studied in several animals. For example, the echolocating behavior of bats, by which the reflection of emitted sound waves contributes to navigation in the dark, has been detailed since 1938 1, 2, and active electrolocation, by which the disruptions of weak electrical fields are used to detect potential prey and predators, is well known from. Color also has value. A color's value is a measurement that describes how light or dark it is. It is defined by the color's proximity to white. For instance, lighter colors such as yellow will have lighter values than darker colors like navy blue. A good way to see the difference in the values of colors is to look at the greyscale The luminous intensity of the streams increases rapidly when the potential is increased; and with frequencies of only a few hundred thousand, could the coil be made to withstand a sufficiently high potential difference, there is no doubt that the space around a wire could be made to emit a strong light, merely by the agitation of the molecules. US7417781B2 US11/789,221 US78922107A US7417781B2 US 7417781 B2 US7417781 B2 US 7417781B2 US 78922107 A US78922107 A US 78922107A US 7417781 B2 US7417781 B2 US 7417781B2 Authority US United States Prior art keywords mirror electrochromic layer light electrode Prior art date 1999-05-14 Legal status (The legal status is an assumption and is not a legal conclusion

### Light - Wikipedi

• ator, 'now flashes with lightning.'faith sworn with its sister. and fears to stray further into the habitations of earth than the limit established for its wandering. At my mere [1] I will and wish it is now vexed into the wrath of the storm, now returns to the peace of tranquillity, now, borne.
• Colorimetric analysis of silicone cosmetic prostheses for upper-limb amputee
• US7833610B2 US10/399,797 US39979703A US7833610B2 US 7833610 B2 US7833610 B2 US 7833610B2 US 39979703 A US39979703 A US 39979703A US 7833610 B2 US7833610 B2 US 7833610B2 Authority US United States Prior art keywords document materials axis iridescent diffraction grating Prior art date 2000-10-28 Legal status (The legal status is an assumption and is not a legal conclusion
• Weekend Diversion: You are responsible for what you say. By esiegel on September 23, 2012. In the long run, we shape our lives, and we shape ourselves. The process never ends until we die. And.
• The time has been too short to make a satisfactory study of the properties of this product, but enough experience has been gained in a few weeks I have experimented upon it to say that it does.
• Volume 1, Chapter 33. The Human Eye as an Optical System. The eye is a compound optical system comprising a cornea and a lens, as shown in Figure 1. It is an adaptive optical system because the crystalline lens changes shape to focus light from objects at a large range of distances on the retina
• A common way of analyzing the motion of objects in physics labs is to perform a ticker tape analysis.A long tape is attached to a moving object and threaded through a device that places a tick upon the tape at regular intervals of time - say every 0.10 second. As the object moves, it drags the tape through the ticker, thus leaving a trail of dots

Diamond is the hardest natural material known, scoring 10 on the relative Mohs scale of mineral hardness and having an absolute hardness value of between 90, 167, and 231 gigapascals in various tests. Diamond's hardness has been known since antiquity, and is the source of its name. However, aggregated diamond nanorods, an allotrope of carbon first synthesized in 2005, are now believed to be. It has also become modern era's most desirable technology specially for vehicle guidance. Colored night vision has provided us with much broader spatial and temporal exposure; more certainty, increased system dynamism, and more consistency [6, 40, 41]. The colorization of night vision generates imagery that depicts naturalistic and steady. The intensity of sound waves is usually specified by decibels (dB) above a certain reference level, usually 0.0002 dyne/cm 2 or μbar rms, through the formula dB = 20 log (p/0.0002). This is often called sound pressure level, or SPL An aqueous liquid which has a pH value of between 7 and 14. A base or caustic material. Color is described by three properties: hue, lightness, and saturation: when exposed to visible light, emit light of a different wave length producing a bright appearance

125 Years of Collecting. This year marks the 125th anniversary of the American Numismatic Association, of which you and I are proud members. Founded in Chicago in October 1891, the ANA has grown to include nearly 25,000 members and has become the world's largest organization devoted to the history, lore and lure of coins, tokens, medals and. Here and there cluster flocks of light, portable booths, each also with a swaying lantern, where steaming tea is sold in thimble-cups; where saki may be drunk hot and hot, poured from long-necked porcelain bottles, or trays of queer, toothsome-looking sweetmeats are to be had for coins of infinitesimal value Then my eye travelled along to the figure of the White Sphinx upon the pedestal of bronze, growing distinct as the light of the rising moon grew brighter. I could see the silver birch against it. There was the tangle of rhododendron bushes, black in the pale light, and there was the little lawn The universe has a divine soul of order, which soul is moral, being also the soul within the soul of man. But whether this soul of the universe be a mere quality like the eye's brilliancy or the skin's softness, or whether it be a self-conscious life like the eye's seeing or the skin's feeling, is a decision that never unmistakably appears in.

The 460 also has a recorder output BNC which is exactly the same signal going to the DPM with a full scale range of 2 V (plus or minus). There is another BNC labeled Variable Time Constant which probably takes a capacitor to modify the speed of response Scour the planet, brothers! Cleanse it with the blood of men! Chaos Lord Kranon the Relentless The Crimson Slaughter is a Renegade warband of Chaos Space Marines dedicated to Chaos Undivided. Originally they were known as the Crimson Sabres, a Loyalist Space Marine Chapter that may have belonged to the mysterious 13th Founding, also known as the Dark Founding, which occurred sometime. 1.1 Light is Color 2 1.2 Color Perception 4 1.3 Color Reproduction 5 1.4 Color Systems 7 The printing industry also uses color to enhance its products; the aim is to consistently supply top. The body in which it does not dominate, shows but a discolored hue, and ceases being beautiful, merely because it does not participate in the whole form of color. Once more, thus do the hidden harmonies of sound produce audible harmonies, and also yield to the soul the idea of beauty, though showing it in another order of things

Kilowatt Hour (kWh) - The measure of electrical energy from which electricity billing is determined. For example, at the rate of \$0.11 oer kWh, a 100-watt lamp operating for 2000 hours will cost \$22.00 (100x2000/1000 = 200kWh x.11 = 22.00). Knockout - Sections that can be easily removed or knocked out from a panel Optical properties: Diamonds exhibit a high dispersion of visible light. This strong ability to split white light into its component colors is an important aspect of diamond's attraction as a gemstone, giving it impressive prismatic action that results in so-called fire in a well-cut stone. The luster of a diamond, a characterization of how light interacts with the surface of a crystal, is.

Unit of light intensity; fundamental dimension of lighting engineering. 1 cd is defined as the light intensity emitted by a monochromatic light source with a radiant power of 1/683 W at 555 nm. CCG Abbreviation for Conventional Control Gear. Ceiling washlight Luminaire type which is mounted individually or in rows above eye-level in or on walls 4) applied to a spectacle lens, one uses the response function shown in FIG. 3 and computes a baseline value of perceived reflectance F=141. The value of perceived reflectance from an uncoated glass lens (FIG. 5) has a value of 575 for the same S(λ,θ), and the McLeod design reduces the perceived reflection to 25% of that for the uncoated lens Friday Squid Blogging: Brittle Star Catches a Squid. Watch a brittle star catch a squid, and then lose it to another brittle star. As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered. Read my blog posting guidelines here LIGHT TOUCH MARYLAND ART PLACE International Pier of the Baltimore Washington International (BWI) Airport February 12-June 21, 2014. LIGHT TOUCH: Liz Wells, Curator Light is core to our existence.

Raishin Uchiha (うちは雷神, Uchiha Raishin) is a Jōnin-class shinobi of Konohagakure, a former elite ANBU captain, and a member of its infamous Uchiha clan.He is the son of renowned shinobi and former clan leader Seto Uchiha, widely agreed to have inherited his father's talent, hailed as a prodigy and considered one of the most powerful shinobi ever produced by the village There is another way to put it: Haidt likes the irony that liberal refusal to see the value of tribalism has made them paradoxically narrow - hence tribal. This seems like the joke is on liberals. But, so far as I can tell, the joke is also on Haidt. The problem solves itself. If the problem is as Haidt says The above-noted work with oriented crystals and cubes has also lent scientific support to the traditional understanding, concluding on the basis of visual inspection in transmitted light and colorimetric measurements that the best and most highly desired color change between daylight and incandescent light was observed in a direction of. Color is the element of art that involves light; It is produced when light waves strike an object and are reflected into our eyes; It consists of three properties: hue, intensity, and value; Hue — This is simply the name that is given to a color, such as red, yellow, blue, purple, green, orange, etc

### Visible spectrum - Wikipedi

If full intensity for one projector is 1, then a primary color has a combined intensity of 1. A secondary color has a total intensity of 2. White has a total intensity of 3. Thus, complementary colors have greater total intensity than primary colors. Also, tinting, or adding white, increases the total intensity of a hue Thus, although both color and sound depend on waves (light waves reaching the eye; sound waves reaching the ear), color is perceived to reside firmly in its object, intrinsic to its object (like shape), while sound moves through intervening space and seems instead to come from its object

The object reaches B after 1 sec. Therefore, the distance between A and B is 1 m. The formula that relates space s, time t, and speed (or velocity) v, is known since Galileo's time and we learn it in high school: s = v · t (substitute v = 1 m/sec and t = 1 sec to find s = 1 m) Long-term sunlight exposure is known to be associated with the development of skin cancer, skin aging, immune suppression, and eye diseases such as cataracts and age-related macular degeneration. 1,2 For decades, it has been established that ultraviolet radiation ranging from 100 to 400 nm is harmful to the retina, whereas the visible spectrum of light from 400 to 700 nm is relatively safe. 3.

When the pattern has a value of 0, the surface is not displaced and the slope of the surface is 0 (ie. it's horizontal). When the pattern has a value of 0.5, the surface is displaced by 0.5 and the slope of the surface is 1. When the pattern has a value of 1, the surface has maximum displacement and the slope is again 0, ie. horizontal The cultist has drilled a hole in its forehead trying to add a third eye, or it has supernaturally scarred one of its regular eyes. Third Eye. The cultist has truesight out to a range of 60 feet. Ghostly Gaze. The cultist can see through solid objects to a range of 30 feet; when it does so, it perceives objects as ghostly, transparent images The Germ: Thoughts towards Nature. In Poetry, Literature, and Art. When whoso merely hath a little thought. Will plainly think the thought which is in him,—. Not imaging another's bright or dim, Not mangling with new words what others taught; When whoso speaks, from having either sought

### Visible Spectrum - an overview ScienceDirect Topic

The intensity and spectral properties of the burst, the rate of change of formant transitions, and even the pitch of the ensuing vowel tend to correlate with the aspirated/unaspirated distinction, thus providing additional, though possibly redundant, cues for the characterization and differentiation of the respective categories Notes: Translated by Apio Ludd aka Wolfi Landstreicher, 2017. This transcription is based on a heavily modified OCR of a PDF file. It will likely still have some transcription errors. The transcription attempts to closely match the original, including apparent typos/mistakes, except for: 1. page footers (page number, section number, etc.) have been removed; 2. pagination and line breaks are. 2020 Optical caustics of multiple objects in water: two vertical rods and normally incident light Markus Selmke and James A. Lock Applied Optics 59, 26, 7981-7993 (2020) OSA Optics InfoBase The optical caustics of the combined water menisci raised by two objects with identical circular cross sections show peculiar caustic metamorphoses known from binary gravitational lenses

The direct light of the sun has been estimated to be equal to that of 5563 wax candles of a moderate size, supposed to be placed at the distance of one foot from the object: that of the moon is probably only equal to the light of one candle at the distance of twelve feet; consequently the light of the sun is more than three hundred thousand. The more photons that strike a pixel, the more electrons that are produced. After a specified exposure time, the charges from each pixel are read out as an analog signal value, which is then converted to a digital value, corresponding to the intensity of light that struck that pixel. The result of all the pixel values, creates a digital image

### Why do we use the HSV colour space so often in vision and

From the pluralist vantage of today's academy, a colloquy on the middlebrow might seem like an unfashionable proposition. Coined in the 1920s to describe those who fell between high and low culture, the concept harks back to an era openly invested in cultural hierarchies.1 In response to the rise of mass technology, commentators of that era sorted consumers and products into polarizing. Low intra-specific variation in colour has also been reported for flowers previously (McEwen & Vamosi, 2010). The low intra-specific variation quantified in the tetrahedral coordinates of colours indicates that individuals of a species are very similar in both the hue and saturation of their colours; this suggests that many colour patches. Editor's Note: This project originated as a collaboration between longtime friends William Gass and Michael Eastman. With their permission, I published the material as an iPad-only e-book in 201

The concept of print quality is elusive, since it depends on objective measurable quantities such as contrast, graininess, etc., but also on the subjective appreciation of potential observers. It is far from obvious that print quality (PQ) can be defined in terms of good or bad, so that every one will agree on this definition, and the question of its measurement, with objective and subjective. The Philosophy of Neuroscience. First published Mon Jun 7, 1999; substantive revision Tue Aug 6, 2019. Over the past four decades, philosophy of science has grown increasingly local. Concerns have switched from general features of scientific practice to concepts, issues, and puzzles specific to particular disciplines The codex has established that just one projectile from a dreadnought-scale mass accelerator hits like a nuclear weapon. In fact the Drill Sergeant in Mass Effect 2 specified that the impact of a 2kg slug from an Everest-class dreadnought releases a third of the energy of the Hiroshima bomb. Orbital bombardment obliterates whole cities; in fact exploration reveals dead worlds which have been. Batch Image Converter can adjust brightness, luminosity, lightness, luminance, luma, intensity, gamma, and exposure of your images. All of these affect perceived brightness, however all the terms mean slightly different things. Heads Up! All adjustments operate in 2 modes: shifting and scaling

The gods of all pagan faiths have been allied with the rich rulers. The priests of most religions are the employees of the landowners. But the God of Israel has always claimed to be with the poor—whether in the legislation of Deuteronomy, the words of the prophets, or the experiences of the New Testament.Our God is on the side of the poor Latest breaking news, including politics, crime and celebrity. Find stories, updates and expert opinion A yarn numbering method in which the numerical value describes the weight to length ratio; like denier, the larger the yarn number, the thicker or heavier the filament or yarn. Discharge Printing Process where the fabric is first piece dyed and then printed with a paste that contains a chemical which destroys one of the dyes used (white) The solution that we propose is a new method called symmetric extension. Given a smooth spectral function S1, we first generate a new function S2 which is a mirror reflection of S1 about the upper bound of the wavelength domain. Then we create another function U that merges S1 and S2, and apply Fourier expansion to U