Archives January 2011

One Thousand Years of Missing History

Professor Salim T S Al-Hassani*

Table of contents

1. Illuminating words

2. Academic voices

3. The Dark Ages revisited

4. Instances of creative contributions

5. Notes and references

***

Note of the editor

The following article is a newly edited and augmented version of an essay presented first by Professor Al-Hassani, the Chairman of FSTC, at the conference “La Deuda Olvidada de Occidente “(The forgotten debt of the West) organised in Madrid in 21-26 October 2003 by the Fundacion La Huella Arabe. An earlier version was published on www.MuslimHeritage.com in 2004. © FSTC 2004-2010.

***

Large image

Figure 1: HRH Prince Charles of Wales. (Source).

1. Illuminating words

In a memorable lecture on “Islam and the West” presented on 27th October 1993 in Oxford, HRH Prince Charles of Wales said the following decisive sentences:

“If there is much misunderstanding in the West about the nature of Islam, there is also much ignorance about the debt our own culture and civilisation owe to the Islamic world. It is a failure, which stems, I think, from the straight-jacket of history, which we have inherited. The medieval Islamic world, from central Asia to the shores of the Atlantic, was a world where scholars and men of learning flourished. But because we have tended to see Islam as the enemy of the West, as an alien culture, society, and system of belief, we have tended to ignore or erase its great relevance to our own history [1].”

Large image	Large image
Figure 2: HRH The Prince of Wales lecturing on “Islam and the West” at the Oxford Centre for Islamic Studies on 27 October 1993. See the full text of the conference. (Source).	Figure 3: Mrs. Carleton S. Fiorina, chairman, president, and CEO of Hewlett-Packard Company (1999-2005). (Source).

There are many instances of distorted history, and many works have given attention to this matter [2]. In this presentation focus will be on the other manner by which history is distorted: that is, the suppression of centuries of contribution to modern civilisation by the Muslim world. This negligence is apparent in academia, in the media and in the educational curriculum and associated history books, especially those aimed at the general public. The focus on this issue is to alert communities as to the particular significance of the Muslim civilisation and its historical role in giving birth to much of modern science and technology.

The following words by a famous lady well describes this situation and the debt that world history owes to the civilisation created by Muslims. They were pronounced by Mrs. Carleton S. Fiorina, chairman, president, and
CEO of Hewlett-Packard Company (1999-2005) in a discourse on 29 September 2003:

“There was once a civilization that was the greatest in the world. It was able to create a continental super-state that stretched from ocean to ocean, and from northern climes to tropics and deserts. Within its dominion lived hundreds of millions of people, of different creeds and ethnic origins.

One of its languages became the universal language of much of the world, the bridge between the peoples of a hundred lands. Its armies were made up of people of many nationalities, and its military protection allowed a degree of peace and prosperity that had never been known. The reach of this civilization’s commerce extended from Latin America to China, and everywhere in between.

Large image

Figure 4: Map of the Muslim World around 1400. The geographical extent of the classical Muslim civilisation covers large parts on three continents: Asia, Africa and Europe. (Source).

And this civilization was driven more than anything, by invention. Its architects designed buildings that defied gravity. Its mathematicians created the algebra and algorithms that would enable the building of computers, and the creation of encryption. Its doctors examined the human body, and found new cures for disease. Its astronomers looked into the heavens, named the stars, and paved the way for space travel and exploration. Its writers created thousands of stories. Stories of courage, romance and magic. Its poets wrote of love, when others before them were too steeped in fear to think of such things.

When other nations were afraid of ideas, this civilization thrived on them, and kept them alive.

When censors threatened to wipe out knowledge from past civilizations, this civilization kept the knowledge alive, and passed it on to others. While modern Western civilization shares many of these traits, the civilization I’m talking about was the Islamic world from the year 800 to 1600, which included the Ottoman Empire and the courts of Baghdad, Damascus and Cairo, and enlightened rulers like Suleiman the Magnificent.

Although we are often unaware of our indebtedness to this other civilization, its gifts are very much a part of our heritage. The technology industry would not exist without the contributions of Arab mathematicians. Sufi poet-philosophers like Rumi challenged our notions of self and truth. Leaders like Suleiman contributed to our notions of tolerance and civic leadership. And perhaps we can learn a lesson from his example:

It was leadership based on meritocracy, not inheritance. It was leadership that harnessed the full capabilities of a very diverse population–that included Christianity, Islamic, and Jewish traditions. This kind of enlightened leadership — leadership that nurtured culture, sustainability, diversity and courage — led to 800 years of invention and prosperity [3].”

Large image	Large image
Figure 5a-b: Did modern Civilisation really rise from nothing? In contrast to the prevalent view in most Western school curricula and media culture, these two diagrams show that the classical Muslim world was the seat of a creative knowledge revolution that lasted for several centuries and was the ferment of European renaissance. See: Salim Al-Hassani Innovation in the Islamic World: Learning from the Past to Design the Future.

2. Academic voices

Among the academic voices who followed in similar foot steps, there is nothing better than to resort to John Glubb here who, in his History of the Arab People, tells us:

“Modern oriental studies have proved the falsity of this historical propaganda (the Idea of the 16th-17th century Renaissance, and that nothing happened between the 450s, the fall of the Roman empire, and such Renaissance), although the latter is still widely believed by the general public. Unfortunately, a great part of the educational world still adheres to these ancient taboos and the period of some five or six centuries, which separates the decline of Rome from the Norman invasion of England, is omitted from school curricula and from public examination. As is always the case, this falsification of history for propaganda purposes has injured us more than anyone else, and has largely been responsible for the many political errors, which our governments have committed in the Middle East in the last sixty years.

The history of ‘progress’, the rise of man from a primitive state to his modern condition, is a fascinating story. The interest is lost, however, when the continuity is concealed by the omission of periods of several centuries and the presentation of bits and pieces of history, gathered from here and there, in accordance with our own emotional prejudices or our national vanity [4].”

Large image

Figure 6: Illustration by Al-Biruni of different phases of the moon, from a manuscript of the Persian translation of his astronomy book Kitab al-tafhim li-awa’il sina’at al-tanjim (Book of Instruction in the Elements of the Art of Astrology). To read the English translation online, click here.

Of course Glubb only tells of those centuries up to 1066 (the time of the Norman invasion), but the whole period 450-1492, in fact is passed over as Dark Ages, and is altogether ignored as far as science and civilisation are concerned. At best, this time span is termed as “middle age”, an intermediary period, a uniform bloc, “vulgar centuries” and “obscure times”, as Pernoud says [5].

One challenges any audience to pick ten history books, look into them to find that in at least nine, the presentation of scientific achievements jumps from some Greek names of the late Antiquity, whomsoever it is, whether Ptolemy, Archimedes, or Galen, straight to Leonardo da Vinci, Copernicus and Galileo, consequently ignoring scientific and technological events of a period of 1000 years between the 6th and the 16th century, as if it were a sterile period. The same holds with respect to curricula at schools and colleges. More disastrously, even, as the curious audience can gather, from universities, too. How is it that higher learning institutions teach that nothing happened over a thousand years? This is not just beyond comprehension, but violates academic rules of rigorous questioning. Students, who are trained to think critically, suddenly face a sudden and not explained gap, darkness surrounding ten centuries, then suddenly history resumes moving and events happen, as if by miracle, all at once in the Renaissance. It defies logic. Things, as any scientist knows, do not appear by chance. Continuity is basic especially in the birth and rise of sciences; it is almost so in every other field of study.

Large image

Figure 7: Original drawing of the 3rd water raising machine described by Al-Jazari in his Kitab ma’rifat al-hiyal al-handasiya (The Book of Knowledge of Ingenious Devices) completed in 1206. See Salim T. S. Al-Hassani and Colin Ong Pang Kiat, Al-Jazari’s Third Water-Raising Device: Analysis of its Mathematical and Mechanical Principles. Click here to view the animation of the machine.

3. The Dark Ages revisited

How did we get many of the symbols of our modern life? By chance? Out of nowhere? Certainly not.

The forgotten period of ten centuries set aside as ‘vulgar and dark’ and given scant notice in books, curricula and at universities is actually the period when the grounds of modern science were mapped out and amplified.

It is the period when appeared the ten decimals (the Arabic numerals, our 1, 2, 3…, as a much easier way than the Latin i, ii, iii…, in handling calculations). It is then that algebra was created from scratch, derived from the rules, concepts and procedures exposed in the founding book Kitab al-jabr wa-‘l-Muqabala by Muhammad ibn Musa Al-Khwarizmi, a mathematician of 9th-century Baghdad. It is from the Latin translation of his name that the term ‘Algorism’ was extracted [6].

Is it logical and credible to describe these missing centuries therefore as the Dark Ages, we should ask?

Large image

Figure 8: Virtual reconstruction of Al-Jazari’s third pump by FSTC. (Source). Fig. 9: Drawing of the six-cylinder pump invented by Taqi al-Din ibn Ma’ruf and described by him in 1551 in his treatise Al-Turuq al-saniya fi al-‘ alat al-ruhaniya (Chester Beatty Library in Dublin, Arabic MS 5232, p. 38). See Salim Al-Hassani, The Machines of Al-Jazari and Taqi al-Din.

It was during this period that the modern observatory was born, in Baghdad, Damascus, Isfahan, Maragha, Samarka
nd and Istanbul, in particular, just as Sayili, Sédillot, Dreyer and Hetherington show us [7]. It was during these centuries that the majority of our stars were given Arabic based names, and that astronomers gained a precise and experimentally valid understanding of the motions of the planets and that they built certain mathematical models that will inspire Copernicus in expounding the heliocentric hypothesis [8].

Large image

Figure 9: Drawing of the six-cylinder pump invented by Taqi al-Din ibn Ma’ruf and described by him in 1551 in his treatise Al-Turuq al-saniya fi al-‘alat al-ruhaniya (Chester Beatty Library in Dublin, Arabic MS 5232, p. 38). See Salim Al-Hassani, The Machines of Al-Jazari and Taqi al-Din.

It was during this period that we have the beginning of the modern institutions, Parliament and the exchequer, which were subject to great Islamic influence [9].

“It is during this period we have the birth of the universities, again thanks to Islamic influence”, as asserted by Castro and Ribera who highlighted the cultural legacy of the Muslims, but also of the Jews and Christians working together in Muslim Spain, al-Andalus [10].

It is during this period we recognise the beginning of naturally based medicines and hospitals, again with Muslim influence through the encouragement of doctors and physicians, as was the customin the Muslim world, from all faiths and groups.

The birth of the Gothic in architecture, and the beginnings of modern musical theory also belong to this so-called Dark Ages [11]. It was then when the carpet was brought to England by Princess Eleanor from Spain to enhance her new English home.

It was during this period that we have the birth of many of our engineering devices, and modern technology, as the works by Al-Jazari and Taqi al-Din, testify [12]. How else, and from where, indeed, do many of our mechanical devices come from if that period was dark? They certainly did not appear by chance in the 15th century.

Large image	Large image	Large image
Figure 10a-c: Parallel views of the virtual reconstruction of the pump. To view animations, click here and here. See also Salim Al-Hassani and Mohammed A. Al-Lawati, The Six-Cylinder Water Pump of Taqi al-Din: Its Mathematics, Operation and Virtual Design.

Concerning medicine, pharmacy and surgery, a great progress happened in the same centuries, when the fundamentals of the instruments, such as the forceps, the catgut suture and the palletising of pharmaceutical granules we have today were designed and made by that great mind of the age Abu ‘l-Qassim al-Zahrawi [13].

Large image

Figure 11: Front cover of the Latin translation of Al-Zahrawi’s influential medical book Al-Tasrif liman ‘ajaza ‘an al-ta’lif: Liber theoricae necnon practicae Alsaharavii, edited by Paolo Ricci (Augsburg: Impensis Sigismundi Grimm & Marci Vuirsung, 1519). (Source).

Chemistry too knew an unprecented development, and the workshops of Muslim chemists were so complex that they prefigure the modern laboratory. In this context, the experimental method was born and extensively used in accordance with Islamic antecedents as the sources cited herein can demonstrate [14].

It was during the period of the so-called Dark Ages, most of all, that the largest cultural exchanges between East and West took place [15].

Trade and pilgrims brought together Muslims, Christians, Jews, Chinese and Hindus in great exchanges of ideas and learning [16]. The translators did the same, too, especially in the great Spanish city of Toledo and in Sicily [17]. The Crusaders went east and brought many trades, skills, and aspects of learning back to the West, as Prutz superbly explains [18]. Sarton, in his large Introduction to the History of Science, shows how science in that period was so universal, in fact more universal, by harnessing the skills of so many races and faiths as never had been the case [19]. The Islamic scientific tradition itself involved the largest number of faiths and ethnic groups in a shared experience that has never been equalled. And which serves to our very modern world.

Large image	Large image
Figure 12a-b: Arabic botanical manuscript from the 15th century arranged in alphabetical order with illustrations of plants in vivid colours at Princeton University Library, MS 583H, © Princeton University Library, Department of Rare Books and Special Collections. See the electronic edition of the manuscript.

4. Instances of creative contributions

In the West it has inevitably been the tradition to highlight Eurocentric culture based on endorsing and attributing all exclusively and solely to the Roman and Greek cultures. Even until quite late in the 20th century, grammar schools in the UK taught history from the Roman perspective, not unnaturally since Latin and Attic Greek with their literary contributions were de rigueur.

The historian Sarton beautifully describes continuity in science and technology as a ‘stately chariot’, stopping to change horses in the neighbourhood of an inn:

“The old Muslim postillions are being thanked and new ones are taking charge. The chariot is stopped, but the fresh horses are pawing the ground impatiently… It is the same old chariot, but the horses and postillions are changed from time to time, and the people riding in it change, too, one by one… It is a chariot that never comes back. It goes on and on as the spirit of mankind moves it; it has been driven by the Greeks, by Romans, by people of all kinds, lately by Muslims, now by Jews and Christians [20].”

Consequently, why shall we ignore and leap over these centuries and thus overlook the true origins of our modern civilisation? Why obscure the vital fact that all races and faiths are equally gifted, and that instead of hostility and strife, we can all live together taking the best from each other as the history of civilisation and learning has shown?

It is then quite appropriate to conclude with an extract from a speech delivered by The former Belgium Minister of Culture Paul Van Grembergen at the Congress of UMIVA on “Treasures of Islam” held in Antwerp, Belgium, on 22 March 2003:

Large image	Large image
Figure 13: The beginning of the first article of Part I of a manuscript of Kitab Al-Tasrif liman ‘ajaza ‘an al-ta’lif by Al-Zahrawi. The page shows his definition of medicine, quoted from Al-Razi, as the preservation of health in healthy individuals and its restoration unto sick individuals as much as possible by human abilities. (Source).	Figure 14: Mr. Paul Van Grembergen, Belgian former minister.

“These Islamic values that are reflected by the great Islamic civilisation have contributed to the progress and development of our Western society. Knowledge is clearly the key to development. Thanks to the knowledge and the intellect of the Muslim scientists, we were able to benefit from mathematics, philosophy, anatomy, chemistry, astronomy etc …The great writer Ibn Khaldun, who built the foundation for sociology and anthropology with his work Al-Muqaddima in the 14th century, is one example. His method is still being discussed in our universities. Contemporary astrologers base a great deal on the exact calculations of Ibn Umar al-Sufi to orientate in the universe. It was Al-Khwarizmi who made a breakthrough in mathematics in the 11th century. His calculations and formulas are nowadays still taught as the well-known algorithms. Also, our word “zero” originates from the Arabic word sifr. The great European explorers and geographers used to base their expeditions on the exact and complete works of the North Africans Al-Idrisi and Ibn Battuta. Thanks to the noble dedication of Harun al-Rashid who translated Greek works in Baghdad in the 9th century and also thanks to the analytical mind of Averroës (Ibn Rushd) in the 12th century, we were able in Europe to rediscover an enriched Greek philosophy. In other words, thanks to Islam, knowledge was preserved, further developed and passed on and this is without any doubt one of the important treasures of Islam.”

5. Notes and references

[1] HRH The Prince of Wales lecturing on “Islam and the West” at the Oxford Centre for Islamic Studies on 27 October 1993; read the full text of the conference.

[2] D.H. Fischer, Historians’ fallacies, London: Routledge & Kegan Paul, 1971; J. Fontana: The Distorted Past, Blackwell, 1995; G. Fisher, The Barbary Legend, Oxford, 1957; P. Geyl, Use and Abuse of History, Yale University Press, 1955.

[3] Carly Fiorina, “Vision 2010: U.S. & Arab Economic Opportunities”, U.S.-Arab Economic Forum, 29 September 2003, Detroit, Michigan. Read online here; reproduced by ArabicNews.

[4] John Glubb, A Short History of the Arab Peoples, Hodder and Stoughton, 1969, pp. 289-90.

[5] Régine Pernoud, Pour en finir avec le Moyen Age. Paris: Editions du Seuil, 1977, p. 17. See on this point Salim T S Al-Hassani Filling the Gap in the History of Pre-Modern Industry: 1000 Years of Missing Islamic Industry.

[6] A. Djebbar, Une Histoire de la science arabe. Paris: Le Seuil, 2001.

[7] A. Sayili, The Observatory in Islam, Turkish Historical Society, Ankara, 1960; B. Hetherington, A Chronicle of Pre-Telescopic Astronomy, John Wiley and Sons, Chichester, 1996; J. L. E. Dreyer, A History of Astronomy from Thales to Kepler, Dover Publications Inc, New York, 1953; L. Sédillot, Mémoire sur les instruments astronomique des arabes, Mémoires de l’Académie Royale des Inscriptions et Belles Lettres de l’Institut de France 1: 1-229; Reprinted in Frankfurt, 1985.

[8] P. Kunitzsch, The Arabs and the Stars: Texts and Traditions on the Fixed Stars, and their Influence in Medieval Europe. Aldershot: Varorium, 1989.

[9] C. H. Haskins, Studies in the History of Mediaeval Science. New York: Frederick Ungar Publishing Co, 1967.

[10] A. Castro, La realidad historica de Espana. Edited by Paulino Garagorri with additions and corrections from Castro’s papers. 2nd edition. Madrid: Alianza-Alfaguara, 1974; A.Castro: The Spaniards. An Introduction to their History. Trans. Willard F. King and Selma L. Margaretten. Berkeley, The University of California Press, 1971; J. Ribera, Disertaciones Y Opusculos, 2 vols. Madrid, 1928.

[11] T. Burckhardt, Moorish Culture in Spain. London: George Allen & Unwin, 1972; M. S. Briggs, Architecture, in The Legacy of Islam, edit
ed by T. Arnold and A. Guillaume, Oxford University Press, 1931, pp 155-79; M. Brett, “Marrakech”, Dictionary of the Middle Ages; op. cit., vol. 8; pp. 150-1; T.Burckhardt, Fez City of Islam. Cambridge: The Islamic Text Society, 1992.

[12] D. Hill, Islamic Science and Engineering. Edinburgh: Edinburgh University Press, 1993.

[13] D. Campbell, Arabian Medicine and its Influence on the Middle Ages. Amsterdam: Philo Press, 1926; reprinted 1974.

[14] E. J. Holmyard, Makers of Chemistry. Oxford: Claredon Press, 1931; J. Ruska: “Al-Rasi (Rhases) als Chemiker”, Zeitschrift fur Angewandte Chemie 35, 1912, pp. 719-24; J. Ruska: “Die Alchemie ar-Razis”, Der Islam 22, 1935, pp. 281-319.

[15] C. Burnett, The Introduction of Arabic Learning into England. The Panizzi Lectures, 1996; The British Library; 1997; W. Durant, The Age of Faith. New York: Simon and Shuster, 6th printing 1950.

[16] D. Abulafia, “The Role of Trade in Muslim-Christian Contact during the Middle Ages” in The Arab Influence in Medieval Europe, Edited by D. A. Agius and R. Hitchcock. Ithaca Press, Reading, 1994, Pp. 1-24; M. Amari, I Diplomi arabi del reale archivio Fiorentino, Florence, Lemonnier, 1863.

[17] Burnett, C., and Jacquard, D. (eds.), Constantine the African and ‘Ali ibn al-Magusi: The Pantegni and Related Texts. Leiden: Brill, 1994; N. Daniel, The Arabs and medieval Europe. Longman/Librarie du Liban, 1975.

[18] H. Prutz, Kulturgeschichte der kreuzzuge, Berlin, 1883.

[19] G. Sarton, Introduction to the History of Science. 3 vols. Baltimore: The Williams and Wilkins , 1927-48.

[20] G. Sarton, Introduction to the History of Science, op. cit., vol. 2, p. 109.

*Emeritus Professor at the University of Manchester and Chairman of the Foundation for Science, Technology and Civilisation (FSTC), Manchester, UK.

by: FSTC Limited, Wed 17 February, 2010

Related Articles:

The Arabic Sources of Jordanus de Nemore by: FSTC Limited

The following article by Professors Menso Folkerts and Richard Lorch, from Munich University in Germany, describes the influences of Arabic sciences in the works of Jordanus de Nemore, a scholar who flourished in Western Europe in the 13th century.

Tracing the Impact of Latin Translations of Arabic Texts on European Society by: FSTC Limited

In this article, Professor Charles Burnett, a world expert in the history of Islamic influences in Europe at The Warburg Institute (London University), retraces the impact the Latin translations of Arabic texts of science and philosophy had on the intellectual progress of Europe in the decisive period that preceded and prepared the Renaissance. The article is based on an interview conducted with him in 2004.

A Bibliography of the Islamic and Chinese Scientific Relationships in Classical Times by: FSTC Limited

In the following bibliography of the Islamic and Chinese scientific relationships in classical times, a list of the main recent works is produced. The researches cover various scientific domains, from mathematics and astronomy to technology, geography and travel accounts. They show the mutual influence between the world of Islam and the Chinese world.

Mont Saint-Michel or Toledo: Greek or Arabic Sources for Medieval European Culture? by: Prof. Charles Burnett

In a recent book, Sylvain Gouguenheim has caused a furore in claiming that European culture owes nothing to Arabic culture. The following article by Professor Charles Burnett, an eminent scholar in the intellectual context of the Middle Ages and of the intricacies of the Arabic-Latin transmission, explains the arguments of this debate and sheds light on salient aspects of the transmission of Islamic learning to Latin Europe. Concluding that we must acknowledge both Mont St Michel and Toledo as contributors to European culture, and warning that Gouguenheim’s focus on the true roots of ‘Christian Europe’ runs the danger of ethnicity, that is of replacing a racial purity of blood with a textual one, he shows how both Greek and Arabic sources enriched the intellectual world of the Middle Ages and in what way Islamic culture contributed to shape Western European civilization.

Shining light upon light by: FSTC Limited

Tw
o science histories dissect the transfer of knowledge between the Greco–Islamic and European civilizations, and put right the impression that the flow was one way, explains Yasmin Khan in a recently published article (Nature, vol 458, 12 March 2009).

Large image

Figure 1: Wash-basin in the form of a peacock described by Al-Jazari in Kitab fi Ma’rifat al-Hiyal al-Handisayya. Manuscript copied in Sha’ban 6002/ March 1205. (Source).

Large image

Large image

Figure 2 a-b:

Large image

Figure 3: Model of a blood letting device as described by Al-Jazari and reconstructed in 1977. It measured the blood lost during phlebotomy (blood-letting) sessions, a popular therapy in the Islamic medieval world. Two scribes are seated above the device and their actions describe the amount of blood to be let. Currently on display in The Science and Art of Medicine (inventory number : 1981-1710). (Source).

Large image

Figure 4: Al-Jazari’s water powered scribe clock brought back to life after 800 years by FSTC. The clock stands 1 metre high and half a metre wide; the scribe with his pen is synonymous to the hour hand of a modern clock. Click here to see the animation. (Source).

Large image

Figure 5: Picture of the internal structure of an automata for dispensating liquids. © JC Heuden at Virtual Worlds. (Source).

Large image

Figure 6: The original drawing of the double action or reciprocating pump from Al-Jazari’s manuscript. Topkapi Palace Museum Library, Ahmet III, MS 3472. (Source).

Large image

Figure 7: 3D model recreated by FSTC of the double action pump of Al-Jazari. Click here to view the animation. ©FSTC 2009.

Large image

Figure 8: View of The Elephant Clock: Leaf from a manuscript of Al-Jazari’s Kitab fi macrifat al-hiyal al-handasiyya dated 715 H/1315 CE. (Source).

Large image

Figure 9: 3D model recreated by FSTC of the Elephant clock. Click here to view the animation. ©FSTC 2009.

Large image

Figure 10: A table device automaton designed by Al-Jazari. Manuscript dated from the early 14th century (1315), copied in Syria by Farrukh ibn Abd al-Latif. Opaque watercolor, ink and gold on paper. © The Smithsonian Institution, Washington. (Source).

Large image

Figure 11: A large ewer held by a kneeling female attendant in a domed pavilion designed by Al-Jazari: once the bird whistles, water pours into a basin below; a duck then drinks the used water and releases it through its tail into a container hidden under the platform. © The Smithsonian Institution, Washington. (Source).