Book Review: Patrick Griffin is an award-winning historian-filmmaker whose grasp of both disciplines makes him especially qualified to comment on the challenges of a major historical PBS series.... The review is a publication of Film & History and duplications should credit the journal. PC Rollins [log in to unmask] ____________________________________________________________ Nova: Secrets of lost empires, II. Broadcast PBS: 1999-2000 season. Executive prod., Paula Apsell. Series prod.:Michael Barnes. 1. Pharoah's obelisk, prod. Julia Cort. 2. Easter Island, prod. Liesel Clark. 3. Roman Baths, prod. Nancy Linde. 4. China Bridge, prod. Michael Barnes. 5. Medieval siege, prod. Michael Barnes. $69.95 (order through www.pbs.org) The "secret" in each of the "lost empires" is technology. How the Egyptian obelisks were erected. The engineering and sacred movement of the Easter Island moai. The construction of the Song Dynasty wooden Rainbow bridges. The technology, heating systems and aqueduct engineering of Roman baths. And the trebuchet -- the gravity driven "warwolf" medieval siege catalputs that rendered castle walls helpless. Despite the glitzy series title, which calls up the sins of much of current cable documentary, the series is straightforward and on the mark. Nova, historians, engineers, archeologists, technicians and master craftspeople seek to discover the technologies that have been lost or are vague in the annals of history. Nova has 25 years of tradition in exploring science in all its aspects. It doesn't disappoint us in this second of a series on science and technology in historical context. Each show is built around challenge and conflict. The challenge presented to other civilizations and cultures, and the challenge presented teams of scholars and technicians seeking to correctly find the secret in competition with the themselves, sometimes in actual teams, always in group conflict. The contemporary technologists compete with an enthusiasm that is sometimes childishly petulant but often playfully charming. ("What are we going to do, fight over it?" asks one archeologist at a point of crisis in the attempt to move the Eastern Island moai ) Sometimes the competition seems overemphasized and forced. But the excitement that surrounds each show is always infectious The concept fills the bill of what any film should accomplish in a double sense: conflict. The challenge then to develop the technology, the challenge now to find it. And it can draw the viewer, scholar and student, into the on-camera solution. The Nova production itself organizes the search, so the film has a sense of verité often missing in historical documentary, even though at times the scholars play to the camera and the production has touches of artifice and limitation (budget) of the scope of the exploration. The "Pharaoh's Obelisk" is illustrative of the storylines and a template for other shows in the series. Nova supports experiments in Egypt to understand how exactly the 100 foot, 500 ton obelisks were floated down the Nile to be raised in the desert. Under team leader and archeologist Mark Layer, Mark Whiby , a British engineer, attempts to apply a kind of cradle frame which, the team demonstrates, was probably used to haul the immense quarried stone on to the vessels to haul them down the Nile With Nova cameras rolling, Whitby and his team tries to erect a very small obelisk, dropping it in the foundation pit at an 80 degree angle. The effort fails. The ropes stretch, the rollers creep. The obelisk takes a dangerous attitude as it moves into the support hole in the ground and the experiment has to be scrapped for safety reasons. A second experiment by stone mason Roger Hopkins with a 2 ton (!) simulated rock obelisk makes use of a second technology: filling the foundation pit with sand and letting the sand flow out of the wooden barriers enclosing the foundation pit. The obelisk tips and human power pulls it upright. But could the real 500 ton real obelisks be hauled that way into place? However, another team member, sculpturor Rick Brown of Maassachusetts, thinks that he has the right answer. A turning groove and dry sand -- not wet sand as used in the experiment in Egypt. So, in the backyard of the Nova production house in Boston (so to speak), the raising of an obelisk is undertaken. Is ---the geometry and attitude right? Will the simple technology of sand flowing out of the sand pit, dry sand pit, give the correct angle which will nestle the obelisk into its upright position? Each show follows this pattern. In "China Bridge," the problem of the long lost technology of wood rainbow bridge construction is tackled by Professor Tang Wong Chang, bridge historian and engineer. Nova brings him together with Dr. Barrchar Atamar, MIT engineer, in Chinja, just outside Shanghia. They set out to build a wooden rainbow bridge like that depicted in the famous Rainbow Bridge painting, using only old techniques and materials. The first question is to answer how the load is transferred to the foundations of the bridge: by beam or arch forces, a critical question for hadling stress factors and building the foundations But there are other problems soon to emerge, such as how the beams are secured secured together and misunderstandings and conflicts over materials and in the construction. In the case of the Easter Island moai, conflicting views concern rollers and pulleys used possibly to transport them over the contoured landscape -- or does the myth about "walking" moai contained a germ of technological truth? In Scotland two competing teams of 50 carpenters seek the correct balance of the trebuchet in order to hurl 250 pound stones at a castle wall in the Loch Ness area. One might ask: So what? Each show is, however, more than a lesson in five obscure technologies. The shows very consciously enter the mind of a people and a historical period. In "Roman Baths" (my favorite of the five shows), Nova attempts to find a process of heating which has been lost over the centuries, and build a Roman bath from the scratch. "Nova assembles a team, call it an experiment in history," heralds narrator Stacy Keach. The team includes a Turkish engineer and archeologist, an expert in heating who has designed systems for the Tate Gallery and the Savoy, an archeologist who is the head of the Roman Buildings Foundation, an expert in Cretan building technology, and a smattering of historians whose bailiwicks are general and technological histories of Roman. With the use of occasional well placed re-creations, done with the usual excellent Nova camera style and historical realism, the team sets out to build their Roman bath. They walk off and survey an empty field near Sardis in Turkey, a Roman city which left a legacy of the steam bath in the region. They set a time limit and begin build a small private bath, customary throughout the Roman world, using only the techna and methods of the Romans. But in the process the show becomes a text book on Roman sensibility and what will come to be called Roman "practicality" and and the "instinct" of engineering. The program spins off to explore the science of vaulting, the process of making concrete, the aqueduct system, even the system of public lavatories. The show points out how the experience in vaulting and the use of concrete in bath and other public and private buildings led to the technique of building massive structures such as the Pantheon and Coliseum. There is a sequence in which members of the team explore the inside of an open lower aqueduct, the Acqua Claudia, in the aqueduct system which brought water to Rome. Clean, very explicit animated graphics show the technological process as they works in each of these specific technologies. The "touch" of this world is overwhelming, and gradually the sense of the Romans themselves as people begins to shape itself -- without ever resorting to crass re-enactments. The issue focuses on how exactly the flow of heat was flued to equally heat the floors and walls and precisely and effectively exhaust. But the time limits the team sets on itself begins to work against them: Will the concrete and especially mortar have time to dry -- "season" -- so that the small bath will not leak or even crack. Then come the rains which wetten concrete and mortar already problematic in the time allowed to dry. A baker in the village nearby, who works daily with the heating of furnaces, is consulted. Will the furnace draw properly, will the building crack?... As usual in each of the shows, there is a crisis in the final stages. Can the team finish the job despite heated opposition among themselves to final decisions concerning the technology, will the team be able to actually have their own personal Roman bath 2,000 years later.... Nova Executive producer Paula Apsell and series producer Michael Barnes have here a winning product for the teaching historian. Each show is 60 (54) minutes, slipping right into the class time for presentation and discussion. Each show spins off broader issues which anchor the mind and product of the cultures/civilizations under class consideration. There is enough story and conflict to hold the attention of the most resistant student viewer. The goal of history "on film" is to get behind the doors to whatever remains of the human past and whatever that historical reality is. Motion picture features have their own grounding in history as a product of the values and technologies of a 20th century time; documentary is another matter. Too often the history gets trapped in the contrivances and aesthetics of film (and this applies also to study of the feature film). Or, put another way, in the self posing style of the documentary maker. Historical documentaries, especially many produced for the new cable market, sacrifice the semblance of reality for a sensational plot hook for the general audience. Or, resort to a few costumed individuals who are to "represent" the people and actions of the past (the tight shot on the eight marching feet that are supposed to be the march of the Roman legions). Or resort to black and white archive footage from the early days of motion pictures ("Intolerance," the American or European epics of massive Roman armies clashing, volcanoes erupting, Romans orgiastically relaxing) as if, somehow, the black white is supposed to show a historical "reality" whether or not the original motion picture was concerned at all with historical "authenticity." Or montage sequences, repeated sometimes interminably, which are supposed to "be" a historical reality ( repeating close up images of a sword slashing and dripping blood -- the point of the gladius was that it was mainly a thrusting weapon! -- the image of a howling she-wolf to represent the violence of Rome, the same African American slave running through the brush again and again in the underground railroad, etc.). Well, these are, I know only too well, the ambivalent tooling that the historian qua filmmaker has to use if he/she is to attempt at all the "documenting" of history. However, in this series Nova illustrates another way. The producer does history, but the shows are aware of the distance between the profilmic and the putative (the first virtue needed in making documentary film). And, at the same time the film is connecting with the values and people of the past through the very concrete and shared experience of technology. When the modern science and art of history was shaped at the end of the 19th century, Wilhelm Dilthey stood out among the positivist historians of the era by his attempt to get at the mind of the past through the art, artifacts, products of past peoples. It was not only the pyramids which were important, but the technology of cloth, of painting, of ceramics and artifacts in context. These opened the door from the present to the past mind. This Geisteswissenschaft is in fact (whether or not acknowledged) the foundation on which studies of film and history rest. How much Dilthey (as dour as he was!) would have exulted in this double thrust provided by the use of film and the use of technology! Patrick H. Griffin College of the Canyons and El Camino College ---- To sign off Screen-L, e-mail [log in to unmask] and put SIGNOFF Screen-L in the message. Problems? Contact [log in to unmask]