..History of Physics

History of physics

Japan’s Contribution Against the Development of Physics

Arranged By: Murniaty M (091204157) Anna Tanan (091204158) Physics ICP 09’

Department of Physics Faculty of Mathematics and Science Makassar State University 2011

PREFACE

            Praise is to Allah the Lord of Hosts, who because of an abundance of mercy and grace of Him the author of this paper can complete the task well.

            There is also the author thanked profusely for Physics Teachers Subjects who have given the science and knowledge to the author, mainly related to the writing of this paper.

The authors summarize this paper from a reliable source that the author presented in the presentation sheet Bibliography.

The author realizes the writing of this paper is still far from perfection. Therefore, suggestions and criticism is the authors hope to perfect in the future.

Final words I hope this paper can increase our knowledge and ability in the field of physics as we had hoped.

Makassar, October 2011


Authors

CHAPTER I

INTRODUCTION

A.    Background

The development of science is not a new thing. Long before BC had a lot of leaders emerged Sciences? For example such as Archimedes, Aristotle, Ibn al-Haytham, and many others who find a lot of discovery. Be it in the field of Astronomy, Mathematics, Physics, Biology, Philosophy and others. In prehistoric times many prominent physicists that have sprung up.

The physicists or physicists studying the behavior and properties of matter in very different fields, ranging from submicroscopic particles that make up all matter (particle physics) to the behavior of the material universe as a whole cosmos.

Physics is often referred to as "the most fundamental science", because every other natural sciences (biology, chemistry, geology, etc.) to study certain types of material systems that obey the laws of physics. For example, chemistry is the science of molecules and the formation of chemical substances.
Physics research culture is different from other sciences because of the separation of theory and experiment. Since the twentieth century, most individual physicists specializing in theoretical physics research or experimental physics course, and in the twentieth century, few are successful in these areas. In contrast, almost all theorists in biology and chemistry are also successful experimental.
In this paper we will discuss about History of Optics at each period and Japan's Contribution against the Development of Physics. Hopefully with the drafting of this paper can provide additional knowledge about the historical development of physics for the future.

B.     Purpose

The purposes of writing this paper are:

1.      To fulfill the task Course History of Physics as one of the conditions of learning are taught.

2.      To deepen knowledge of the author in the fields of physics, especially on the history of optical instruments and Japan's Contribution against the Development of Physics.

3.      To become a reference for writers in developing writing skills in particular skills and writing papers.

C.      Problem:

1.        How does the history of optics in each period?

2.        Who are the characters that play a role in the physics field of optics?

3.        How Japan's contribution to the development of physics?

CHAPTER II

DISCUSSION

A.  History of Physics about Development Optics in each Period

Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek and Indian philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term τα ὀπτικά which refers to matters of vision. Optics was significantly reformed by the developments in the medieval Islamic world, such as the beginnings of physical and physiological optics, and then significantly advanced in early modern Europe, where diffractive optics began. These earlier studies on optics are now known as "classical optics". The term "modern optics" refers to areas of optical research that largely developed in the 20th century, such as wave optics and quantum optics.

1.    Early history of optics

The earliest known lenses were made from polished crystal, often quartz, and have been dated as early as 700 BC for Assyrian lenses such as the Layard/Nimrud lens. There are many similar lenses from ancient Egypt, Greece and Babylon. The ancient Romans and Greeks filled glass spheres with water to make lenses. However, glass lenses were not thought of until the Middle Ages.

Some lenses fixed in ancient Egyptian statues are much older than those mentioned above. There is some doubt as to whether or not they qualify as lenses, but they are undoubtedly glass and served at least ornamental purposes. The statues appear to be anatomically correct schematic eyes.

In ancient India, the philosophical schools of Samkhya and Vaisheshika, from around the 6th–5th century BC, developed theories on light. According to the Samkhya school, light is one of the five fundamental "subtle" elements (tanmatra) out of which emerge the gross elements.

In contrast, the Vaisheshika school gives an atomic theory of the physical world on the non-atomic ground of ether, space and time. The basic atoms are those of earth (prthivı), water (apas), fire (tejas), and air (vayu), that should not be confused with the ordinary meaning of these terms. These atoms are taken to form binary molecules that combine further to form larger molecules. Motion is defined in terms of the movement of the physical atoms. Light rays are taken to be a stream of high velocity of tejas (fire) atoms. The particles of light can exhibit different characteristics depending on the speed and the arrangements of the tejas atoms. Around the first century BC, the Vishnu Purana refers to sunlight as "the seven rays of the sun".

In the fifth century BC, Empedocles postulated that everything was composed of four elements; fire, air, earth and water. He believed that Aphrodite made the human eye out of the four elements and that she lit the fire in the eye which shone out from the eye making sight possible. If this were true, then one could see during the night just as well as during the day, so Empedocles postulated an interaction between rays from the eyes and rays from a source such as the sun.

In his Optics Greek mathematician Euclid observed that "things seen under a greater angle appear greater, and those under a lesser angle less, while those under equal angles appear equal". In the 36 propositions that follow, Euclid relates the apparent size of an object to its distance from the eye and investigates the apparent shapes of cylinders and cones when viewed from different angles. Pappus believed these results to be important in astronomy and included Euclid's Optics, along with his Phaenomena, in the Little Astronomy, a compendium of smaller works to be studied before the Syntaxis (Almagest) of Ptolemy.

In 55 BC, Lucretius, a Roman who carried on the ideas of earlier Greek atomists, wrote:

The light and heat of the sun; these are composed of minute atoms which, when they are shoved off, lose no time in shooting right across the interspace of air in the direction imparted by the shove.

—Lucretius, On the nature of the Universe

Despite being similar to later particle theories of light, Lucretius's views were not generally accepted and light was still theorized as emanating from the eye.

In his Catoptrica, Hero of Alexandria showed by a geometrical method that the actual path taken by a ray of light reflected from a plane mirror is shorter than any other reflected path that might be drawn between the source and point of observation.

In a twelfth-century translation assigned to Roman mathematician Claudius Ptolemy, a study of refraction, including atmospheric refraction, was described. It was suggested that the angle of refraction is proportional to the angle of incidence.

The Indian Buddhists, such as Dignāga in the 5th century and Dharmakirti in the 7th century, developed a type of atomism that is a philosophy about reality being composed of atomic entities that are momentary flashes of light or energy. They viewed light as being an atomic entity equivalent to energy, similar to the modern concept of photons, though they also viewed all matter as being composed of these light/energy particles.

2.    The beginnings of geometrical optics

The early writers discussed here treated vision more as a geometrical than as a physical, physiological, or psychological problem. The first known author of a treatise on geometrical optics was the geometer Euclid (c. 325 BC–265 BC). Euclid began his study of optics as he began his study of geometry, with a set of self-evident axioms.

1. Lines (or visual rays) can be drawn in a straight line to the object.
2. Those lines falling upon an object form a cone.
3. Those things upon which the lines fall are seen.
4. Those things seen under a larger angle appear larger.
5. Those things seen by a higher ray, appear higher.
6. Right and left rays appear right and left.
7. Things seen within several angles appear clearer.

Euclid did not define the physical nature of these visual rays but, using the principles of geometry, he discussed the effects of perspective and the rounding of things seen at a distance.

Where Euclid had limited his analysis to simple direct vision, Hero of Alexandria (c. AD 10–70) extended the principles of geometrical optics to consider problems of reflection (catoptrics). Unlike Euclid, Hero occasionally commented on the physical nature of visual rays, indicating that they proceeded at great speed from the eye to the object seen and were reflected from smooth surfaces but could become trapped in the porosities of unpolished surfaces.^[4] This has come to be known as emission theory.

Hero demonstrated the equality of the angle of incidence and reflection on the grounds that this is the shortest path from the object to the observer. On this basis, he was able to define the fixed relation between an object and its image in a plane mirror. Specifically, the image appears to be as far behind the mirror as the object really is in front of the mirror.

Like Hero, Ptolemy (c. 90–c. 168) considered the visual rays as proceeding from the eye to the object seen, but, unlike Hero, considered that the visual rays were not discrete lines, but formed a continuous cone. Ptolemy extended the study of vision beyond direct and reflected vision; he also studied vision by refracted rays (dioptrics), when we see objects through the interface between two media of different density. He conducted experiments to measure the path of vision when we look from air to water, from air to glass, and from water to glass and tabulated the relationship between the incident and refracted rays.

His tabulated results have been studied for the air water interface, and in general the values he obtained reflect the theoretical refraction given by modern theory, but the outliers are distorted to represent Ptolemy's a priori model of the nature of refraction.

3.    Optics and vision in the Islamic world

 

Figure 1. Reproduction of a page of Ibn Sahl's manuscript showing his discovery of the law of refraction, now known as Snell's law.

Al-Kindi (c. 801–873) was one of the earliest important optical writers in the Islamic world. In a work known in the west as De radiis stellarum, al-Kindi developed a theory "that everything in the world emits rays in every direction, which fill the whole world."^[6] This theory of the active power of rays had an influence on later scholars such as Ibn al-Haytham, Robert Grosseteste and Roger Bacon.

Ibn Sahl (c. 940-1000) was a Persian mathematician associated with the court of Baghdad. About 984 he wrote a treatise On Burning Mirrors and Lenses in which he set out his understanding of how curved mirrors and lenses bend and focus light. In his work he discovered a law of refraction mathematically equivalent to Snell's law.^[8] He used his law of refraction to compute the shapes of lenses and mirrors that focus light at a single point on the axis.

Ibn al-Haytham (known in as Alhacen or Alhazen in Western Europe) (965–1040) produced a comprehensive and systematic analysis of Greek optical theories. Ibn al-Haytham's key achievement was twofold: first, to insist that vision occurred because of rays entering the eye; the second was to define the physical nature of the rays discussed by earlier geometrical optical writers, considering them as the forms of light and color. He then analyzed these physical rays according to the principles of geometrical optics. He wrote many books on optics, most significantly the Book of Optics (Kitab al Manazir in Arabic), translated into Latin as the De aspectibus or Perspectiva, which disseminated his ideas to Western Europe and had great influence on the later developments of optics.

Avicenna (980-1037) agreed with Alhazen that the speed of light is finite, as he "observed that if the perception of light is due to the emission of some sort of particles by a luminous source, the speed of light must be finite. "Abū Rayhān al-Bīrūnī (973-1048) also agreed that light has a finite speed, and he was the first to discover that the speed of light is much faster than the speed of sound.

Abu 'Abd Allah Muhammad ibn Ma'udh, who lived in Al-Andalus during the second half of the 11th century, wrote a work on optics later translated into Latin as Liber de crepisculis, which was mistakenly attributed to Alhazen. This was a "short work containing an estimation of the angle of depression of the sun at the beginning of the morning twilight and at the end of the evening twilight, and an attempt to calculate on the basis of this and other data the height of the atmospheric moisture responsible for the refraction of the sun's rays." Through his experiments, he obtained the value of 18°, which comes close to the modern value.

In the late 13th and early 14th centuries, Qutb al-Din al-Shirazi (1236–1311) and his student Kamāl al-Dīn al-Fārisī (1260–1320) continued the work of Ibn al-Haytham, and they were the first to give the correct explanations for the rainbow phenomenon. Al-Fārisī published his findings in his Kitab Tanqih al-Manazir (The Revision of [Ibn al-Haytham's] Optics).

4.    Optics in medieval Europe

The English bishop, Robert Grosseteste (c. 1175–1253), wrote on a wide range of scientific topics at the time of the origin of the medieval university and the recovery of the works of Aristotle. Grosseteste reflected a period of transition between the Platonism of early medieval learning and the new Aristotelianism, hence he tended to apply mathematics and the Platonic metaphor of light in many of his writings. He has been credited with discussing light from four different perspectives: an epistemology of light, a metaphysics or cosmogony of light, an etiology or physics of light, and a theology of light.

Setting aside the issues of epistemology and theology, Grosseteste's cosmogony of light describes the origin of the universe in what may loosely be described as a medieval "big bang" theory. Both his biblical commentary, the Hexaemeron (1230 x 35), and his scientific On Light (1235 x 40), took their inspiration from Genesis 1:3, "God said, let there be light", and described the subsequent process of creation as a natural physical process arising from the generative power of an expanding (and contracting) sphere of light.

Figure 2. Optical diagram showing light being refracted by a spherical glass container full of water. (from Roger Bacon, De multiplicatione specierum)

His more general consideration of light as a primary agent of physical causation appears in his On Lines, Angles, and Figures where he asserts that "a natural agent propagates its power from itself to the recipient" and in On the Nature of Places where he notes that "every natural action is varied in strength and weakness through variation of lines, angles and figures."

The English Franciscan, Roger Bacon (c. 1214–1294) was strongly influenced by Grosseteste's writings on the importance of light. In his optical writings (the Perspectiva, the De multiplicatione specierum, and the De speculis comburentibus) he cited a wide range of recently translated optical and philosophical works, including those of Alhacen, Aristotle, Avicenna, Averroes, Euclid, al-Kindi, Ptolemy, Tideus, and Constantine the African. Although he was not a slavish imitator, he drew his mathematical analysis of light and vision from the writings of the Arabic writer, Alhacen. But he added to this the Neoplatonic concept, perhaps drawn from Grosseteste, that every object radiates a power (species) by which it acts upon nearby objects suited to receive those species.  Note that Bacon's optical use of the term "species" differs significantly from the genus / species categories found in Aristotelian philosophy.

Another English Franciscan, John Pecham (died 1292) built on the work of Bacon, Grosseteste, and a diverse range of earlier writers to produce what became the most widely used textbook on Optics of the Middle Ages, the Perspectiva communis. His book centered on the question of vision, on how we see, rather than on the nature of light and color. Pecham followed the model set forth by Alhacen, but interpreted Alhacen's ideas in the manner of Roger Bacon.

Like his predecessors, Witelo (c. 1230–1280 x 1314) drew on the extensive body of optical works recently translated from Greek and Arabic to produce a massive presentation of the subject entitled the Perspectiva. His theory of vision follows Alhacen and he does not consider Bacon's concept of species, although passages in his work demonstrate that he was influenced by Bacon's ideas. Judging from the number of surviving manuscripts, his work was not as influential as those of Pecham and Bacon, yet his importance, and that of Pecham, grew with the invention of printing.

• Peter of Limoges (1240–1306)
• Theodoric of Freiberg (ca. 1250–ca. 1310)

5.    Renaissance and early modern optics

Johannes Kepler (1571–1630) picked up the investigation of the laws of optics from his lunar essay of 1600. Both lunar and solar eclipses presented unexplained phenomena, such as unexpected shadow sizes, the red color of a total lunar eclipse, and the reportedly unusual light surrounding a total solar eclipse. Related issues of atmospheric refraction applied to all astronomical observations. Through most of 1603, Kepler paused his other work to focus on optical theory; the resulting manuscript, presented to the emperor on January 1, 1604, was published as Astronomiae Pars Optica (The Optical Part of Astronomy). In it, Kepler described the inverse-square law governing the intensity of light, reflection by flat and curved mirrors, and principles of pinhole cameras, as well as the astronomical implications of optics such as parallax and the apparent sizes of heavenly bodies. Astronomiae Pars Optica is generally recognized as the foundation of modern optics (though the law of refraction is conspicuously absent).

Willebrord Snellius (1580–1626) found the mathematical law of refraction, now known as Snell's law, in 1621. Subsequently René Descartes (1596–1650) showed, by using geometric construction and the law of refraction (also known as Descartes' law), that the angular radius of a rainbow is 42° (i.e. the angle subtended at the eye by the edge of the rainbow and the ray passing from the sun through the rainbow's centre is 42°).^[22] He also independently discovered the law of reflection, and his essay on optics was the first published mention of this law.

Christiaan Huygens (1629–1695) wrote several works in the area of optics. These included the Opera reliqua (also known as Christiani Hugenii Zuilichemii, dum viveret Zelhemii toparchae, opuscula posthuma) and the Traitbe de la lumiaere.

Isaac Newton (1643–1727) investigated the refraction of light, demonstrating that a prism could decompose white light into a spectrum of colours, and that a lens and a second prism could recompose the multicoloured spectrum into white light. He also showed that the coloured light does not change its properties by separating out a coloured beam and shining it on various objects.

Newton noted that regardless of whether it was reflected or scattered or transmitted, it stayed the same colour. Thus, he observed that colour is the result of objects interacting with already-coloured light rather than objects generating the colour themselves. This is known as Newton's theory of colour. From this work he concluded that any refracting telescope would suffer from the dispersion of light into colours, and invented a reflecting telescope (today known as a Newtonian telescope) to bypass that problem. By grinding his own mirrors, using Newton's rings to judge the quality of the optics for his telescopes, he was able to produce a superior instrument to the refracting telescope, due primarily to the wider diameter of the mirror. In 1671 the Royal Society asked for a demonstration of his reflecting telescope. Their interest encouraged him to publish his notes On Colour, which he later expanded into his Opticks. Newton argued that light is composed of particles or corpuscles and were refracted by accelerating toward the denser medium, but he had to associate them with waves to explain the diffraction of light (Opticks Bk. II, Props. XII-L). Later physicists instead favoured a purely wavelike explanation of light to account for diffraction. Today's quantum mechanics, photons and the idea of wave-particle duality bear only a minor resemblance to Newton's understanding of light.

In his Hypothesis of Light of 1675, Newton posited the existence of the ether to transmit forces between particles. In 1704, Newton published Opticks, in which he expounded his corpuscular theory of light. He considered light to be made up of extremely subtle corpuscles, that ordinary matter was made of grosser corpuscles and speculated that through a kind of alchemical transmutation "Are not gross Bodies and Light convertible into one another, and may not Bodies receive much of their Activity from the Particles of Light which enter their Composition?”

6.    The beginnings of diffractive optics

Figure 3. Thomas Young's sketch of two-slit diffraction, which he presented to the Royal Society in 1803

The effects of diffraction of light were first carefully observed and characterized by Francesco Maria Grimaldi, who also coined the term diffraction, from the Latin diffringere, 'to break into pieces', referring to light breaking up into different directions. The results of Grimaldi's observations were published posthumously in 1665. Isaac Newton studied these effects and attributed them to inflexion of light rays. James Gregory (1638–1675) observed the diffraction patterns caused by a bird feather, which was effectively the first diffraction grating. In 1803 Thomas Young did his famous experiment observing interference from two closely spaced slits in his double slit interferometer. Explaining his results by interference of the waves emanating from the two different slits, he deduced that light must propagate as waves. Augustin-Jean Fresnel did more definitive studies and calculations of diffraction, published in 1815 and 1818, and thereby gave great support to the wave theory of light that had been advanced by Christiaan Huygens and reinvigorated by Young, against Newton's particle theory.

7.    Lenses and lensmaking

The earliest known lenses were made from polished crystal, often quartz, and have been dated as early as 700 BC for Assyrian lenses such as the Layard / Nimrud lens. There are many similar lenses from ancient Egypt, Greece and Babylon. The ancient Romans and Greeks filled glass spheres with water to make lenses.

The earliest historical reference to magnification dates back to ancient Egyptian hieroglyphs in the 5th century BC, which depict "simple glass meniscal lenses". The earliest written record of magnification dates back to the 1st century AD, when Seneca the Younger, a tutor of Emperor Nero, wrote: "Letters, however small and indistinct, are seen enlarged and more clearly through a globe or glass filled with water". Emperor Nero is also said to have watched the gladiatorial games using an emerald as a corrective lens.

Ibn al-Haytham (Alhacen) wrote about the effects of pinhole, concave lenses, and magnifying glassse in his Book of Optics. Roger Bacon used parts of glass spheres as magnifying glasses and recommended them to be used to help people read. Roger Bacon got his inspiration from Alhacen in the 11th century. He discovered that light reflects from objects and does not get released from them. Around 1284 in Italy, Salvino D'Armate is credited with inventing the first wearable eye glasses.

Between the 11th and 13th century "reading stones" were invented. Often used by monks to assist in illuminating manuscripts, these were primitive plano-convex lenses initially made by cutting a glass sphere in half. As the stones were experimented with, it was slowly understood that shallower lenses magnified more effectively.

The earliest known working telescopes were the refracting telescopes that appeared in the Netherlands in 1608. Their development is credited to three individuals: Hans Lippershey and Zacharias Janssen, who were spectacle makers in Middelburg, and Jacob Metius of Alkmaar. Galileo greatly improved upon these designs the following year. Isaac Newton is credited with constructing the first functional reflecting telescope in 1668, his Newtonian reflector.

The first microscope was made around 1595 in Middelburg in the Dutch Republic. Three different eyeglass makers have been given credit for the invention: Hans Lippershey (who also developed the first real telescope); Hans Janssen; and his son, Zacharias. The coining of the name "microscope" has been credited to Giovanni Faber, who gave that name to Galileo Galilei's compound microscope in 1625.

8.    Quantum optics

Light is made up of particles called photons and hence inherently is quantized. Quantum optics is the study of the nature and effects of light as quantized photons. The first indication that light might be quantized came from Max Planck in 1899 when he correctly modelled blackbody radiation by assuming that the exchange of energy between light and matter only occurred in discrete amounts he called quanta. It was unknown whether the source of this discreteness was the matter or the light. In 1905, Albert Einstein published the theory of the photoelectric effect. It appeared that the only possible explanation for the effect was the quantization of light itself. Later, Niels Bohr showed that atoms could only emit discrete amounts of energy. The understanding of the interaction between light and matter following from these developments not only formed the basis of quantum optics but also were crucial for the development of quantum mechanics as a whole. However, the subfields of quantum mechanics dealing with matter-light interaction were principally regarded as research into matter rather than into light and hence, one rather spoke of atom physics and quantum electronics.

This changed with the invention of the maser in 1953 and the laser in 1960. Laser science-research into principles, design and application of these devices-became an important field, and the quantum mechanics underlying the laser's principles was studied now with more emphasis on the properties of light, and the name quantum optics became customary.

As laser science needed good theoretical foundations, and also because research into these soon proved very fruitful, interest in quantum optics rose. Following the work of Dirac in quantum field theory, George Sudarshan, Roy J. Glauber, and Leonard Mandel applied quantum theory to the electromagnetic field in the 1950s and 1960s to gain a more detailed understanding of photodetection and the statistics of light (see degree of coherence). This led to the introduction of the coherent state as a quantum description of laser light and the realization that some states of light could not be described with classical waves. In 1977, Kimble et al. demonstrated the first source of light which required a quantum description: a single atom that emitted one photon at a time. Another quantum state of light with certain advantages over any classical state, squeezed light, was soon proposed. At the same time, development of short and ultrashort laser pulses-created by Q-switching and mode-locking techniques-opened the way to the study of unimaginably fast ("ultrafast") processes. Applications for solid state research (e.g. Raman spectroscopy) were found, and mechanical forces of light on matter were studied. The latter led to levitating and positioning clouds of atoms or even small biological samples in an optical trap or optical tweezers by laser beam. This, along with Doppler cooling was the crucial technology needed to achieve the celebrated Bose-Einstein condensation.

Other remarkable results are the demonstration of quantum entanglement, quantum teleportation, and (recently, in 1995) quantum logic gates. The latter are of much interest in quantum information theory, a subject which partly emerged from quantum optics, partly from theoretical computer science.

Today's fields of interest among quantum optics researchers include parametric down-conversion, parametric oscillation, even shorter (attosecond) light pulses, use of quantum optics for quantum information, manipulation of single atoms, Bose-Einstein condensates, their application, and how to manipulate them (a sub-field often called atom optics), and much more.

Research into quantum optics that aims to bring photons into use for information transfer and computation is now often called photonics to emphasize the claim that photons and photonics will take the role that electrons and electronics now have.

B.     Japan's Contribution Against the Development of Physics

Japan has made significant contribution to the world of physics. Recently, two Japanese and one American-born Japanese won the Nobel Prize in Physics in 2008, upon the discovery of subatomic physics, so the announcement of the Royal Swedish Academy of Sciences in Stockholm Sweden, Tuesday, October 7, 2008.

Yoichiro Nambu, 87 from the University of Chicago, won half the prize for the discovery of a mechanism called spontaneous fractures symmetry in subatomic physics. Makoto Kobayashi and Toshihide Maskawa of Japan won half the prize for the discovery of the origin of symmetry of fracture is estimated to be the existence of at least 3 families electron in nature. They managed to explain the cause of the creation of the universe of mass through a process known as ‘broken symmetry’’ (broken symmetries).

Their findings help explain the existence and behavior of small particles maha (in physics, smaller particles called quarks of the neutron).

Nambu, now is a professor at the University of Chicago, discovered the mechanism of spontaneous symmetry breaking. The findings further explain the Standard Model of Physics. This model incorporates three or four fundamental forces of nature, ie, strengths, weaknesses and electromagnetic, and gravitational.

Nambu's work was also influential in the development of quantum kromodinamik, a theory that explains some of the interactions between protons and neutrons as the atoms forming elements. and the quarks that form protons and neutrons.

            ''The fact that this world does not behave perfectly symmetrical due to deviations from symmetry at the microscopic level, ‘symmetries are broken that causes the mass of the particles exceeds the number of particles of anti-mass. This phenomenon is actually a fortune for all living things. Because, if the universe is symmetric, anti-mass will constantly meet the mass and explode with tremendous energy yield

"Spontaneous symmetry fracture hide under the direction of the surface mixed," the Nobel academy said in a letter of appreciation. Nambu theory, absorbing the standard model of elementary particle physics. The model that unifies the smallest building blocks of all matter and three of the four forces of nature in one theory.

Nambu was born in Japan, moved to the U.S. in 1952 and became professor at the University of Chicago, where he has worked for over 40 years. He became a U.S. citizen 1970.Awal year 1960; Yoichiro Nambu formulated his mathematical description of spontaneous fracture creation of symmetry in elementary particle physics.

Kobayashi and Maskawa "explained within the framework of fracture symmetric standard model but require a model to be extended to three families elektron.Kobayashi (64), working for Energy Acceleration Research Organization, or KEK High Level in Tsukuba, Japan. Maskawa (68) works for the Yukawa Institute for Theoretical Physics at Kyoto University in Japan.

Fracture spontaneous symmetry Nambu studied, differ from that described by Kobayashi and Maskawa, clearly spontaneous incident Nobel.Ketiga academy is seen to exist in nature since the very beginning of the universe and become a complete surprise when they first appeared in particle experiments in 1964. Nobel Academy said that in recent years that scientist could confirm the explanations that Kobayashi and Maskawa made in 1972.

Could be the new findings complement the results of the research team from the Italian university. Two months ago, Marcello Giorgi, Pisa University expert on nuclear physics, announced the discovery of new sub-atomic-called "Ds (2317)". The new sub-atomic mass that is always around the nucleus of the atom weighs 2.317 MeV. "This is the result of work over the past three years," said Giorgi, who uses an iron atom (Fe) in the trials.

The findings of the new sub-atomic it can be will change the basic paradigm of the atom. During this time, atomic theory states that atoms consist of protons, neutrons, and electrons. Nucleus, the densest part of the static, compiled by protons (positively charged) and neutrons (neutral). While the electrons (negatively charged) move around the nucleus of atoms on each trajectory.

Geometrically, it closely resembles the composition of the solar system in the world of the macrocosm the broken symmetry may sound strange to the layman. And without damage to the symmetry, it may be human, life, even the universe - including galaxies, stars, planets, and everything in it - will never exist.

This phenomenon is explained by three Japanese-born scientist recipient of the Nobel Prize of Physics 2008, Yoichiro Nambu of the United States, Makoto Kobayashi and Toshihide Maskawa of Japan. The research they did several decades ago in areas of sub-atomic physics is an understanding that basically the world we live is not perfectly symmetrical because of the deviation of symmetry at the microscopic level.

Nobel Prize Committee of the Royal Swedish Academy of Sciences, last Tuesday, announced that Nambu, Enrico Fermi Institute scientists from the University of Chicago, obtaining half of the prestigious prize for his services to find the mechanism of spontaneous symmetry breakdown in the sub-atomic physics.

"The destruction of spontaneous symmetry reveals the natural order beneath the surface of seemingly irregular," the Nobel Prize committee said in a statement. "Nambu's theory in line with the standard model of elementary particle physics. The model summarizes the material making up the smallest unit and three of the four forces of nature in one single theory." Other prizes to be divided half and Toshihide Makoto from Japan for their discoveries concerning the origin of the outbreak of symmetry which predicts the existence of at least three families of quarks in nature.

Nambu and Makoto was very surprised to hear their name called as winner of the Nobel Prize in Physics. Nambu said he did not expect though for years she was told that his name on the list of candidates nominated for the prize.

It is also delivered Makoto. "That's a big honor for me and I cannot believe it," he said. 64-year-old scientist now working at the High Energy Accelerator Research Organization, or KEK, in Tsukuba, Jepang.Berbeda with Makoto, Maskawa, professor emeritus at the Yukawa Institute for Theoretical Physics at Kyoto University, Japan, not at all surprised. "There is a pattern of how the Nobel Prize awarded," said the man was 68 years.

Their research considered to be very meaningful because it has revealed the behavior of the smallest particles, quarks, and underlines the Standard Model that combines three of the four fundamental forces in nature, the strong nuclear force, weak nuclear force and electromagnetic force. The labors, the three scientists will share the prize money amounting to Rp 13.4 billion in the award ceremony to be held in Stockholm on December 10.

Nambu is a Japanese-born scientist who moved to the United States in 1952 and became an American citizen in 1970. Now he's 87 years working as a professor at the University of Chicago, where she worked for 40 years. "In early 1960, Nambu formulated a mathematical description of spontaneous symmetry breakdown in elementary particle physics." Damaged spontaneous symmetry proved very useful in helping to shape modern physics theory, "said the Nobel Prize committee.

Nambu also influenced the development of quantum chromo dynamics, which describes a number of interactions between protons and neutrons that make up atoms and quarks that make up protons and neutrons.

While the research is done by Makoto and Maskawa explained the destruction of symmetry within the framework of the standard model, but predict that the model should be extended until at least three families of quarks. Spontaneous symmetry breakdown that Nambu studied differ with damage symmetry is described by Makoto and Maskawa. "But the spontaneous occurrence seems to have existed in nature since the beginning of the universe, and they appear very surprising when first discovered in particle experiments in 1964," the academics said.

Although both the Japanese scientists have proposed predictions since 1972, in recent years that scientists could confirm it. Hypothesis of the existence of new quarks could eventually be proven in a number of experimental physics at the end of 2001.

Two particle detectors BaBar at Stanford, USA, and Belle at Tsukuba, Japan, simultaneously detect the broken symmetry that occurs in each facility. "The results are exactly as predicted by Makoto and Maskawa nearly three decades earlier," the committee said in its announcement.

Following up on their discovery, other physicists are now trying to find damage to the symmetry or the Higgs mechanism, which threw the universe into imbalance when the Big Bang happened 13.7 billion years ago. They also seek the truth about the existence of the Higgs boson particle Divine or by using the Large Hadron Collider at the European Organization for Nuclear Research, or CERN, in Switzerland.

CHAPTER IV

CONCLUSION

A.  Conclusion

1.        The word comes from Greek optics τα ὀπτικά term that refers to a vision problem. Optics was significantly reformed by the developments in the medieval Islamic world, such as the initial physical and physiological optics, and then significantly developed in early modern Europe, where diffractive optics began.

2.        Euclid began studying optics as he began to study geometry, with a clear set of axioms.

·       Lines (or visual rays) can be drawn in a straight line to the object.

·       Those lines falling upon an object form a cone.

·       Those things upon which the lines fall are seen..

·       Those things seen under a larger angle appear larger.

·       Those things seen by a higher ray, appear higher.

·       Right and left rays appear right and left.

·       Things seen within several angles appear clearer.

3.   The figures in the history of the development of optical physics, among

      others:

·      Al-Kindi (801-873 c)

·      Ibnu Sahl (c. 940-1000)

·      Johannes Kepler (1571-1630)

·      Willebrord Snellius (1580-1626)

·      Christian Huygens (1629-1695)

·      Isaac Newton (1643-1727)

4.        Japan has made significant contribution to the world of physics. Recently, two Japanese and one American-born Japanese won the Nobel Prize in Physics 2008, on the discovery of subatomic physics.

5.        Research from the United States Yoichiro Nambu, Makoto Kobayashi and Toshihide Maskawa of Japan did several decades ago in areas of sub-atomic physics is an understanding that basically the world we live is not perfectly symmetrical because of the deviation of symmetry at the microscopic level.

B. Suggestion

In preparing this paper the author realizes there are still many shortcomings that need to be repaired. For the sake of the perfection of our next paper, constructive criticism and suggestions from readers are needed.

BIBLIOGRAPHY

Anonim₁. 2011. History of  Optics. http://wikipedia.com. Accessed on October 15, 2011.

Anonim₂. 2011. Nobel Fisika untuk Tiga Penemu Partikel Sub atom. http://suaramerdeka.com/v1/index.php/read/cetak/2008/10/08/33732/Nobel-Fisika-untuk-Tiga-Penemu-Partikel-Subatom. Accessed on October 15, 2011.

Anonim₃. 2011. Penemu Partikel Sub atom. http://www.fisikanet.lipi.go.id/utama.cgi?artikel&1223509453&17. Accessed on October 15, 2011.

Kuil, R. 2000.  The Sun Crystal. London: Arrow Books,. Jakarta: Buku Panah.