Mihai Plătică and Archiving Light
Mihai Plătică’s art investigates the deconstruction of light and the traces left by it, in and through various processes. The artist frequently associates the terrestrial landscape with the stars, where this earthscape is always exposed as a pretext for formal exploration. However, his preoccupation with cosmic space (which dominates the earthly) is what furthers the artist’s discourse on light. The exhibition “Oh, Be a Fine Girl/Guy, Kiss Me!” which took place last summer at GAEP gallery brings together several discourses on light: from the distance in time that light can travel, to the attempt to manipulate light, to deconstruct it or turn it into something else, as if a trickster were controlling the contents of the exhibition and playing with one’s mind, revealing something that wasn’t actually there, if he hadn’t interfered with the very nature of things. Yet another recurrence is the attempt to archive, to ‘freeze’ in time something impossible to preserve, either because it is too large or too diaphanous and transient. And the time preserved by Plătică, for as long as the exhibition lasted, is an impossible one, unfolding on several interdependent layers.
The story behind the exhibition’s analogies is that of the ‘human computers’: several generations of women who worked for the Harvard Observatory since 1877 analyzing and classifying astronomical data. The data they analyzed came either from the observatories in Cambridge, Massachusetts, and Monte Wilson in California for the northern hemisphere, or from the Boyden Observatory in Arequipa, Peru, and later in Maselspoort, South Africa, for the southern hemisphere. In their work they examined photographic plates that recorded starlight, a process that required patience and precision. Their complex calculations and data analysis were considered ‘mechanical’ work men avoided, which led to the more fiscally efficient decision to employ women, led by astronomer Edward Charles Pickering. By working with technological tools cited in the exhibition, such as spectrographs and the Draper telescope, they were able to record fine details of spectral lines. As a result of these women’s efforts to map the stars of the observable universe, around 550,000 glass plates containing negatives of celestial images were produced, which are still stored at Harvard.
“Oh, Be a Fine Girl/Guy, Kiss Me!” refers to the mnemonic phrase associated with OBAFGKM, the temperature classification system for stars used to this day and devised in the late 19th century by Annie Jump Cannon at the Harvard Observatory. Eliminating redundancies and rearranging the letters of the alphabet creates parameters where stars can be classified by their effective temperature using a letter and color: from O, with red, for the hottest stars, over 30,000K, across various hues, to M, with blue, for the coolest stars, with temperatures below 3,700K.
Kicking off Mihai Plătică’s exhibition, Glass Plate Universe builds a map of the sky using five glass plates printed 1:1 from photographic models in the Harvard Observatory’s plate collection. The glass plates are grouped in the shape of a prism and joined by a wooden frame. Each one shows images of the sky taken with the Harvard Observatory’s telescopes and includes notes about celestial bodies.
Next to Glass Plate Universe is the Stellar Plates series, which consists of seven photographic plates on 2mm iron plates – replicas of the photographic glass plates in the same collection. These etchings were created by contacting iron plates with transfer plates used in electronics, and a thermal press. The metal surface was then treated with an acid to produce the ‘stars’ or celestial bodies photographed and the astronomical calculations made by the Harvard women. The plates are case-hardened on polyamide, a material the artist also uses for other objects in the exhibition. Similar to the earlier work, these plates recreate the original – precious astronomical data collected by the same group of 216 women over the course of a century.
The whole exhibition is a study on light: the double reflection, the spectrum of light, not just visible light, but also infrared and UV light, and broken light as well. Among the effects favored and used in the show is that of color decomposition through spectroscopy, the same technique by which the properties of a star are studied. The color spectrum appears in photographs through the use of a diffraction grating, a special filter used in spectroscopy, which breaks down the light present in the photographed angle into a spectrum of colors. Applying the color spectrum is recurrent in the photographs, and so is the shape of the prism, a leitmotif that does not appear by chance, but precisely to evoke the decomposition of light. The two elements, the spectroscopic filter and the prism, can be found in only one work, however, Stray Light on a Diffraction Grating Landscape 2. The ‘reading’ of the exhibition segues into the Mirror Landscape series, which consists of five vistas, either forest or sea, that reflect or absorb light. In both cases there is an instance where the spectroscopic filter comes in and completely transforms the image.
The pictures are taken with old digital or analog cameras of various kinds. The artist makes regular use of landscapes he takes on his annual trips to the southern Peloponnese. For the Full-Spectrum Nature and Polychromatic Horizon series, the camera used a filter to block visible light and prioritize ultraviolet and infrared light. Plătică bought a modified camera to capture the full spectrum of light, including the ones mentioned above. The results are works rich in reds and purples or whites and grays, where everything is conditioned by light that varies depending on the time of day.
The idea of multiplication is echoed in the exhibition in ways that might allude to birefringence, without applying it or otherwise manipulating the image. One such case is Gravity’s Rainbow Landscape, in which a ground elevation is juxtaposed with mountain peaks in the background, under dusky light that transitions from red to blue, from cool to warm, reminiscent of the grading system in the exhibition’s namesake.
Plătică uses a specific device to create them, particularly in the case of the five works in the Birefringent Sunstone Landscape series, on double refraction or birefringence. This optical phenomenon occurs when a transparent material, such as optical calcite, refracts light in two beams at different speeds and angles, a ‘slow’ and a ‘fast’ beam, depending on the crystalline orientation of the material. Here, Plătică takes original slides – also landscapes from southern Greece – and places a piece of optical calcite on top of them, which has the property of double refraction – the elements in the landscape appear doubled –, then the artist re-photographs the calcite on top of the source slide, resulting in this dizzying duplication. Optical calcite was also used for navigation by the Vikings on cloudy days, helping them to see where a ray of light might come from.
Reversed Perspective is a landscape in which the sky and vegetation change position along with their own reflection in the water, and is paired with another work called Model Landscape. Landscape from Two Horizons is a similar invitation to gaze at the scenery from different angles marked by a cut prism, similar to the object that opens the exhibition. The prism is often used in spectroscopy to separate the spectrum of light into its component colors. This prism contains a grainy picture of the mountain and sea below, sectioned into two parts.
Optical Landscape is yet another work resulting from an interest in the peculiarities of optics. In this case, the artist uses a Zerodur lens that splits the beam of light used by high-performance telescopes. Under the lens is a landscape photograph of Greece’s southernmost continental point, Cape Tenaro. Depending on the angle you look, something else becomes visible.
For the Photoelastic Stress Glass Plate Mountain series, the artist purchased online and used archival images from a collection of glass negatives of the Pyrenees Mountains taken by amateur explorers on their hikes in the 1930s and 1950s. The work applies photoelasticity, a materials science technique that measures the stress a piece of material has been subjected to. Scientists use a polarizer to capture an image of the internal stress the material under study is undergoing. For example, in the automotive industry, this technique is used to analyze parts for impact loading. When a similar force as in a crash is applied to a body corner, by observing the colors that emerge in the presence of polarizing light, engineers can note the areas of higher stress, i.e. areas that can lead to deformation or breakage of the part. Stress cannot be placed on glass negatives because they would shatter, so Plătică scanned the images along with a series of special polarizing fiber filters with tensioned plastic. From these tension recordings of the landscapes, it would appear as if the aurora borealis had poured over the Pyrenean mountain night (one of the pictures has the following note on the flyover: Punta Alta) or the whole landscape had taken on the most unexpected colors. The superimposition comes as a reversal of one’s perception of what is real, hinting at the insertion of an element of chaos that makes one convince oneself that it is something other than what one sees, or doubt one’s own understanding, like a magic trick or an instance of psyop, as disseminated by one of Plătică’s favorite artists, Trevor Paglen.
The colored circles in the Isochromatic Fringe Maps are resin-sheathed discs from the materials science department at the Technical University of Cluj. The disks were used as teaching materials to explain thermal photoelasticity to students. They were subjected to the thermal elasticity process, then placed in an oven and the molecular structure of the material changed. The next step was to photograph the tension lines created inside the resin as a result of the elasticity.
Photoelasticity can also be found in Photoelastic Parameter Panorama. There are two components to the work: the negative image, scanned from the Pyrenees photo archive, at the top, and at the bottom is a piece of resin subjected to photoelasticity and what looks like an anamorphosis of this landscape, but where all the tension in the material is visible.
Orion Nebula Map after Henry Draper’s Capture contains a 0.1 mm thick plate of framed glass, twice as thin as a sheet of paper, perhaps the thinnest glass in the world. Whole or simply stippled laser cut-outs reproduce the first photograph ever taken of a constellation, the Orion constellation, by the American physician and amateur astronomer Henry Draper in 1880. Draper’s widow, Mary Anna Draper, wanted to continue researching the stars, being among the founders of the Mount Wilson Observatory and the one who funded much of the Harvard women’s research. Until recently, the position of curator of these plates was supported from the original legacy left by Anna Draper. There is a rather close connection between that photograph of the constellation Orion and everything that took place at Harvard, through the philanthropy of the wife who believed the research should be continued.
Birefringent Slow Glass Archive is based on Northern Irish sci-fi writer Bob Shaw’s short story, Light of Other Days. It centers around slow glass, which, depending on its thickness, causes light to pass from one side to the other in years, even decades in the case of one piece of glass. This means that anyone looking through the piece of glass will see events from the past that they experience in the present.
“The most important effect, in the eyes of the average individual, was that light took a long time to pass through a sheet of slow glass. A new piece was always jet black because nothing had yet come through, but one could stand the glass beside, say, a woodland lake until the scene emerged, perhaps a year later. If the glass was then removed and installed in a dismal city flat, the flat would – for that year – appear to overlook the woodland lake. During the year it wouldn’t be merely a very realistic but still picture – the water would ripple in sunlight, silent animals would come to drink, birds would cross the sky, night would follow day, season would follow season. Until one day, a year later, the beauty held in the subatomic pipelines would be exhausted and the familiar gray cityscape would reappear”.[1]
The ability of slow glass to preserve pleasant moments comes not only with the peace it offers, but also with the anguish of the memory. At the same time, glass can also store unpleasant memories. In any case, it can be associated with the inability to make emotional progress. Lining Shaw’s storytelling is a blurring of the boundary between projection and reality and a questioning of how real a technology-mediated experience is. Past events lose the “plastic” quality they would take on as memory, the organicity of memory being blurred by the rigidity of technology, however finely honed. The driving force of the story is the transient nature of beauty associated with the desire to preserve defining moments, and the price that comes with fulfilling that desire in the face of inevitable change. Plătică adds large pieces of glass, suggesting that the photographed landscape arrives here after a long time on the other side, using two pieces of UV printed glass. Depending on how the light shines throughout the space, the observable focus in the landscape shifts, with some places becoming brighter or darker, implying that the image in the work would be imprinted over a year. The work employs ideas from the rest of the exhibition in a single piece, such as the fact that it is composed of a duplication, or the application of a filter to break down the light spectrum, or yet another diffraction grid. Another element that touches on directions already present in the exhibition is the shape of the object: it is inspired by archival instrumentation, referring to the glass plates used in spectroscopy by Harvard researchers. It gives the impression that light can actually be preserved and studied like in an archive. Light becomes a stored substance to reveal the past. The striking idea of the work is the property it implies to have in common with the stars ever so present in the exhibition, that of light that existed long ago but is only now present.
After viewing the exhibition one can only be left with a qualia that runs through the whole spectrum of light. Sometimes, when I long to feel something pleasant, the memory of Plătică’s colors comes to mind. While the effect of a small burst of successive gradients is compelling to assess the exhibition in positive terms, perhaps even more so than in previous exhibitions, I feel that the photographic medium alone (and the gesturality of the objects with which they are associated or become themselves) falls short of what it could be. Given his extensive discourse on light, Plătică should be using more of light itself rather than its simulation. I’d like to see him evolve into more elaborate installations that incorporate some of the things he’s talking about, in one way or another, beyond a flat surface or a static situation. As a direction that comes most readily to mind would be Pierre Huyghe’s work Offspring (2018) in the “Liminal” (2024) exhibition at Punta della Dogana, in which beams of light in several colors, with smoke and a scent influenced by sensors that detected movement in the room, emerged from two boxes, paired with the music of Erik Satie. I offer this example because it’s a kind of art in motion, transforming from one moment to the next, like the very nature that the artist immortalizes, simulates, but does not deliver without creating another. Although the aim of the exhibition is linked to the notion of archive, of ‘freezing’ the transformable, I would like to see Plătică’s art subject to verbs of motion. I feel that the territory opened up by Plătică would be vaster than what it offers, and I can only hope for its evolution towards more spectacular forms.
– by Bogdan Bălan
– translation by Marina Oprea
[1] Bob Shaw, “Slow Glass,” Analog Science Fact & Fiction, August 1966