A malfunctioning of the camera leading to a double-exposed negative. The car is decisive in establishing the relationship between the superimposed photographs. In the middle of the image, we see it parked in front of the house. Slightly less visible is the same car, repeated but further away. This makes it possible to deduce that the dark outline of the house, with the roof and the chimney, is also the same house as in the other photograph. This time, the house is photographed relatively frontally (the slightly angled point of view allows to bring the shed at the back of the house in the line of sight), and from nearby. At the bottom left, the lines that make up the street help to see the continuity of the one photograph, while the electric wires at the top right aid to comprehend the other one. 

The camera malfunction speculates on a future addition to the plot. The dark, outlined shed’s scale is realistic with regards to the scale of the house and itself (the shed) in the other photograph. Its position with regards to the other buildings seems logical. It imposes itself as a possible second shed for the owner to build in the next few years. In that future shed, the car, now standing in front of the house, could be comfortably parked.

A cigar box, standing at the back of a shelf next to the heating installation, with in it silex-like stones with what seem to be traces of prehistoric usage. 

In the garage, there were papers (the archive of O. Clemminck) and objects (stones, tiles) left to us by a man who had worked at the city archive. He was an acclaimed expert on our village’s history.¹

A white Mercedes van inserts in front of me in a traffic jam near Antwerp. The back of the van has been altered in several ways: a latch was added to the door,¹ a footstep was bolted to the bumper, a couple of tie-wraps are holding up the lights on the left side.² Traffic is moving slow. There is no Mercedes logo.³ Some parts have been retouched with white paint that differs slightly from the rest of the bodywork,⁴ not unlike a tipp-ex’ed document.

It must have been four or five years ago, that I noticed the change in Tabasco’s^® up until then stable, unchanged and thus kind of unfashionable presence in supermarkets (vinegar section). On one of the box’s sides, there had always been a photograph of a man, clipboard in hand, looking upwards to a huge wooden barrel full of Tabasco^®. He was inspecting something, from the outside, writing it down. 

A couple of years ago, the man disappeared from the packaging. I think he was replaced by a pizza (as one of the suggestions for using Tabasco^® on, besides on hashed meat (with an egg yolk, fries and lettuce) and spaghetti bolognese) or a black-and-white image of a part of an oak barrel. It is unclear who is inspecting the barrels now.

In Six Stories from the End of Representation, James Elkins writes: ‘Astrophysicists are well practised in “cleaning up” photographic plates by adjusting colour and contrast, removing images of dust, correcting aberrations, restoring lost pixels, and balancing uneven background illumination. When it comes to blur, the usual strategy is to specify what counts as “smooth” and what counts as “pointlike,” and then refine the image until it exhibits the required pointlike properties’¹. Still, some astronomic images keep a certain amount of blur (although it would be technically possible to delineate them). Elkins continues: ‘blur does not need to be a matter of distance from some hypothetical optimal clarity: it can be a functional scale, independent of the viewer’s notions of clarity and even of the image itself’².

On the night of 22 November 2021, I join John Sussenbach in his backyard while he captures Neptune.

He invites me to join him and his wife for dinner. A prayer. Soup and bread. The images he makes, he explains, are complex from a temporal point of view. The light coming from Neptune has travelled for four hours before it reaches us. Moreover, these images are not photographs of a singular moment, but stacked frames of a video-recording. In doing so, he can, to some extent, eliminate the effects of a bad ‘seeing’: the negative effect atmospheric turbulence has on the light that reaches the telescope.

A bright dot is jumping around on his laptop’s screen. ‘That’s Neptune’, he says. With his index finger he follows the dot. ‘That’s the bad seeing. That’s the unrest.’

The next day I send him the photograph I took of him standing on his ladder, dangerously placed on the edge of the tarp covering his pool. ‘Nice to see the open star cluster Pleiades in your photograph’, he replies. He attaches the image he made that night: ‘If there would have been a clear storm on Neptune, it would have shown’.

Each night a plethora of amateur-astronomers gazes into the sky. Their instruments and locations are often inferior to the means available to professionals. Yet, what they lack in terms of technology and location, darkness and mirror surface, they make up for in the collectivity of their observations. They are patient observers, spread around the globe, not bound to the strict schedules and limited availability of the large telescopes in the Atacama Desert. 

When amateur astronomy became fashionable, it led to a surge of information stemming from a large group of distinct observers: seafarers, physicians, typists, masons. Theirs were valuable data, but if they were to be put to scientific use, they needed to be standardised. How to overcome the subjective element inherent in every empirical observation? The amateurs had to be instructed to recognize patterns, by means of visual examples. They had to be trained to use the right terms to describe their observations. They had to turn chaos into order. Recognize what they were looking at. A nebula. A red giant. Neptune’s faint blue-greenish colour resembling the flame of the gas stove.

The car is parked on a gravel path, a few metres down from the small road crossing the village. It would be hopelessly stuck the next morning. While trying to capture Neptune through the rental telescope, I run back and forth between the tripod on the small lawn and the trunk several times to get other eyepieces and adapters.

I align the telescope, using three stars: Vega, Arcturus and Deneb. 

I hear an animal. I look up and notice the interior light of the car has switched on. 

A motorcycle around 3:14. The driver is shifting gears rapidly. I don’t see any headlights in the valley.

Fog sets in. Saturn practically disappears from sight. Jupiter appears as a blob. 

I’m 380m above sea level. The highest hill in the area is barely 500m of height. Still, the fog and the settling dew, along with the nightly cold give it something strangely alpine. 

The fog lifts.

I can still clearly see the ridge in the east. It should be darker.

A seminar on spectroscopy: how, by splitting light into different, separate rays, it becomes possible to deduct the chemical composition of stars and planets far beyond our reach, as those elements have an effect on the light that reaches the spectroscope. Beautiful graphs presenting colour in schemes of black and white. From the moment the course gets into the physics of light, my mind wanders off. What approaches the observer turns blue, what elongates itself becomes red. The teacher’s leather shoes squeak as he goes back and forth between his self-made spectroscope and the desk. Redshift. Blueshift.

We meet him a couple of weeks later on the rooftop of a university building. He opens one of the half-domes. The sound of the mechanics is as obtuse as the shape it alters. A command on the computer based on coordinates: above our heads, the telescope slews slowly, only to halt at an apparently indistinct black region. From within the dome, we send ourselves an email with the photographs that we took of Neptune. 

University classes will start in a couple of weeks. The city air is crisp. The roundabout below is strangely calm. On the horizon, the canopy of a southern forest delineates the sodium-lit sky. 

The planet Uranus should have followed a course as predicted by Newton’s laws. It didn’t. There were ‘residuals’, the 19th-century observers said: irregular data, which had to be interpreted as Uranus deviating from the projected trajectory. They could think of three possibilities. A) The planet Uranus was too far away from the Sun, which might render the Law of Gravitation invalid. B) The observations were incorrect. C) There was another planet, still further and yet unknown, with its own gravitational field and pull, causing Uranus to deviate from its course.

Following hypothesis C, astronomers predicted the position of a planet with a gravitational field, influencing Uranus, by means of mathematical calculations. Telescopes were directed to that calculated spot. There was a luminous point, with a touch of bright azure blue.

In the philosophy aisle of the largest used and remaindered book shop in the city — which is a regular stop on my lunchbreak walks to escape the dreariness of my office job — that particular day a set of books caught my eye. They were four copies of the same edition of a title I had never had any inclination to read. It was the near-uniformity of the four books that made them stand out. Upon closer inspection, there were two more copies of two other editions of the book on the shelf.

It was immediately apparent to me that only three minor moves were required to bring the six copies together on the shelf, and to arrange the four copies of the same edition so that the level of sun fading of their spines would make their lettering form a white to dark pink gradient. I could think of no shade of the letters that would tastefully match the very light blue of the rest of the spine, which had remained relatively uniform across the four copies.

After having moved the books, I took a photograph of them with the camera in my smartphone.

It occurred to me only afterwards that while handling the books I had not leafed through them.

Some days later, going through my photo folder, I came across the picture I had taken to document my somewhat neurotic but oddly satisfying action and noticed that the camera had been in square mode and that the photo was blurry. I have not yet gone back to take a better picture.

The scientific exactitude sought for in the Iconographie de la Salpêtrière and the Nouvelle Iconographie de la Salpêtrière, the (in)famous scientific publications stemming from Paris’ psychiatric hospital La Salpêtrière (1876-1918), lead to an abundance of photographic images in their pages. The photographs’ ideal: ‘Trace incontestable, incontestablement fidèle, durable, transmissible’.¹ The ambition of exactitude results in cold, and often cruel depictions of patients. In the digitized version of the Sorbonne library’s copies, some photographs have left an imprint on the opposite page. The knee of Charles, ‘le géant’, adds an unwanted layer upon its measures on the opposite page, while the photograph of the knee itself loses ink.²

Summer 2019, between the swingset and the mesh greenhouse, astrophotographer Angelo Van Daele closes the observatory. The wheels roll smoothly across the rails embedded within a concrete slab. His former observatory is now a chicken coop. His neighbour’s trees need pruning. The camera mounted on the exterior of the shed allows him to see the instrument from inside the house.

At the Tunis Institut National du Patrimoine, the sand-covered floor has traced Anne Teresa De Keersmaeker’s movements to Steve Reich’s Violin Phase. The venue empties out. It is dark and the way back to the hotel through the medina is labyrinthian and eerie. It has been a couple days since we arrived, and I have managed to make a mental image of the inner city by memorizing some waymarks – intersections, buildings, shops – coupled to a direction. Sometimes, a newly entered street would give out to such a waymark – a peculiar sensation: a flash of spatial insight, like a crumpled ball of paper unfolding. The narrow streets turn and turn. Some passages are closed at night. I must improvise a route, but the basic mental structure to do so is missing. Shopkeepers have moved their goods inside. 

I have no sense of orientation. I can’t estimate distances nor can I tell north from south. Everything is scaleless. My highly simplified scheme of the city’s layout gets us to our destination. The functional interpretation of Tunis differs completely from the actual Tunis. It is a different city we crossed, and made while crossing.

I’m taking a scan of a family photo album given to me after my grandmother passed away, wanting to write something about the marvelous portraits inside. The genealogy is only partly clear to me: I recognize my dad as a kid, my uncle, my grandmother, her brother in the laboratory he (said he) ran. He smelled of cigars and severe perfume. The older photographs present people I don’t know, but must be my ancestors. My grandmother told me stories¹ that, historically, reach further back than the figures I recognize in the photographs. There are no names and no dates in the album. The first two pictures seem to be the oldest ones.² I retract them from the album pockets in which they were slid to check if something is written on the backside. When I take the album away from the scanner’s glass plate, particles of leather, gold varnish and sturdy cardboard come loose. I place a sheet of paper on the glass plate and press ‘scan’ again.

In what order and by whom the various texts and drawings were carved into the soft roofing is unclear. To the right of ‘EVA’, a heart symbol and an arrow (pointing to the left), the roofing reads ‘SIMON TU ME MANQUES’.

The short sentence usually – yet hastily – translates to ‘Simon, I miss you’. However, in French the ‘you’ (tu) is the subject and has an active role, whereas the ‘I’ (me) is the direct object. In short: by his not being there, Simon actively effectuates hurt to the one who carved this text.

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At 13:26:43 I took a photograph of a concrete building without windows in an industrial zone just south of Brussels.

_44A6590.dng
At 16:46:15 I photographed a succession of office buildings in the same industrial zone. 

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I must have walked about 1 kilometer between the concrete building without windows and the section of the industrial zone with the offices. At 13:43:49, the camera, safely stored in my backpack, recorded 0.4 seconds of the 20 minutes it took me to get there. 

In The Snows of Venice, Alexander Kluge wonders whether he can take the liberty to conjure up what the sky looked like on 31 December 1799, as Schiller made his way to Goethe’s house. He goes on by saying that, historically, there’s a ‘LACK OF SENSORY ATTENTION AT CRUCIAL MOMENTS’.¹ There are exceptions, though, like the cameraman that was sent out to document the fireworks on New Year’s Day 2000. The camera was turned on prematurely. The batteries were used up by midnight, but ‘certain gray tones, however, filtered through the cracks of its protective case, conveyed the motion of the walking cameraman, the transportation. The incompletely shut, low-information container was documented exactly […] To this day it provides inexact testimony as to the qualities of the leather of a twenty-first century carrying case and the precise sensitivity to light and dark demonstrated by a twenty-first century recording medium.’²

(‘Slice of more than three meters in diameter, sawn from a Mammoth-tree, given by California to the botanical garden of New York, and presented there’)

Thiery describes the ‘patriarchs’ of the plant world. This slice of a Sequoia, which fell in 1917 in Yosemite National Park, is 1694 years old. A woman of the New York Botanical Institue, where the slice of the patriarch is presented, counted the rings. If one would look at the picture with a magnifying glass, Thiery writes in a footnote, the reader (with good eyes and a fair amount of knowledge of the English language) would be able to read the labels indicating the important global events the tree witnessed. They are transcribed and translated by the author. The end of the Roman occupation of Great Britain. Columbus arriving in America. The Declaration of Independence. This is a lie: the text is illegible, even when using a magnifier.

In the photograph, the slice, as on view in the New York Botanical Institute, is presented upright. To prevent it from rolling away, two small triangular slices of wood were posited at the left and right side of the slice. The type of wood of these slices, nor the age of the patriarch from which they stem, are known.

Five white boulders close off a shortcut for motorists who attempt to cut the bend in the road. The southernmost roof’s pitch runs opposite to the landscape’s slope. The lower roofline is, therefore, only about one meter above a small, triangular patch of grass which is hidden from view by a hedge. In summer, when the roofing gets hot and soft, text and drawings get pressed or carved into it.

John from Middelburg offers a K-10 without a loop at the back on marktplaats.nl. His K-10 does have a front light, which strangely never seems to be mounted in the front of the long tube of the frame. The asking price is 75 euros, bids may start from 50 euros.

The Sedum reflexum grows on rocky soils and in crevices of walls. In L’herbier classique, it is depicted in two ways, just like the other plants in the book. This double portraiture is important, the author states in the introduction: ‘one consists of the reproductions of the photographs taken by the author of this book […]; the other, drawings made by excellent artists who observed the plants themselves, showing details photography can’t reproduce, highlighting aspects the photographs leave untouched. […] From this double representation, interesting comparisons can be made, highly enlightening from an artistic point of view, between the realistic aspect of nature’s “productions”  and the interpretation thereof by the draftsman’ (5).

A detail not covered by the drawing of the sedum reflexum, is the presence of other species in the vicinity of the plant, a detail shown in the photograph and described in the caption: ‘The Common houseleek grows on the same rocks, with its rosette of leaves pretending to be an artichoke’ (59).

K. says that the stall where he usually buys fruit has already been packed up. But he is not worried about the quality of the fruit the other vendor sells. He gestures encouragingly. 

Five signs of type-1, eleven of type-2 and two of type-3 are visible. Four of type-2 (two visible, two deduced) and two of type-3 retain two vehicles.

On March 23th 2015, a high pressure system above Panama Bay blew strong winds landwards. At the Gatun locks, one of the webcams overlooking the Canal neglected the traffic and briefly captured its own images. The ship’s presumed passage through the Gatun locks wasn’t recorded by this camera and the AIS-transponder did not save any data of the ship’s transit from the Pacific to the Atlantic side of the canal: the Authenticity managed to swap oceans undetected.

On February 16th 2016, the transponder still signals the ship near the port of Bahia Las Minas. The current is calm, the ship has been practically immobile for a year.

On the online thrift shop 2dehands.be the homepage generates a ‘for you’ section. On November 9th this section listed, among other things, a picture of the sky on a patch of concrete. On closer inspection, it became clear that it was the sky’s reflection in a mirror with a red frame and four lightbulbs in it, the kind you might see at the hairdresser’s or backstage in a television studio or theatre. The seller estimates the mirror’s current value to be 45,00 EUR. The listing includes five photographs. In the fifth one, the object for sale reflects a bucolic landscape: a blue sky, white clouds, some trees and a fragment of a barn.

He’s wearing a digital watch. It looks like a Casio. It’s impossible to read the time, no matter whether you are studying the high-resolution scan of the negative or the negative itself, with the aid of a loupe and lightbox. 

The device had a stopwatch function. When we were around eight and ten, we used to compete in trying to start and stop the stopwatch in the shortest possible interval. The smaller the gap, the closer to zero. Sometimes he would also have a try. We once managed to get it down to 00:00:00:03. Neither of us dared to press ‘reset’ and try again.

Holding two cans of spray paint, a city employee walks through a sweet chestnut grove on the graveyard. He’s looking for potholes.

Here, on his kitchen table, Marcel Poulet, an expert on the stoneware tradition in the center of France, is explaining his archeological work on ‘whale ovens’. 

I started collecting images and plans of ovens, for the beauty of those abstract technical lines and for what we can learn from them. In gathering the material that makes up this Atlas, and in sharing interests and knowledge, I learned that many people know about ovens, either in their homes, gardens, ateliers, factories, streets… Everyone transforms things through heat. Even bodies need warmth and produce some themselves.

A Sunday stroll near my parents’ house. Along one of the roads between the fields, old poplars have been felled. Young trees have been planted. Each one has a baby blue coloured label, identifying them as Poplar tree, and, more specifically, the ‘Vesten’ cultivar. This cultivar is planted since it is one of the cultivars known for its resistance with regards to bacteria, diseases and insects. The tags on the trunks have staples keeping them together. They’re like bracelets. Come spring, the expanding diameter of the fast growing poplar species’ trunk will tear them apart.

Where once there was twelve million cubic metres of water, excavators and trucks are moving dirt and rocks that have been hidden from sight for 56 years; piling them up into a temporary dam: a batardeau.

_44A6588.dng
At 13:26:43 I took a photograph of a concrete building without windows in an industrial zone just south of Brussels.

_44A6590.dng
At 16:46:15 I photographed a succession of office buildings in the same industrial zone. 

_44A6589.dng 
I must have walked about 1 kilometer between the concrete building without windows and the section of the industrial zone with the offices. At 13:43:49, the camera, safely stored in my backpack, recorded 0.4 seconds of the 20 minutes it took me to get there. 

In The Snows of Venice, Alexander Kluge wonders whether he can take the liberty to conjure up what the sky looked like on 31 December 1799, as Schiller made his way to Goethe’s house. He goes on by saying that, historically, there’s a ‘LACK OF SENSORY ATTENTION AT CRUCIAL MOMENTS’.¹ There are exceptions, though, like the cameraman that was sent out to document the fireworks on New Year’s Day 2000. The camera was turned on prematurely. The batteries were used up by midnight, but ‘certain gray tones, however, filtered through the cracks of its protective case, conveyed the motion of the walking cameraman, the transportation. The incompletely shut, low-information container was documented exactly […] To this day it provides inexact testimony as to the qualities of the leather of a twenty-first century carrying case and the precise sensitivity to light and dark demonstrated by a twenty-first century recording medium.’²

On 12 October 2022, I see a third orange Sparta K-10 listed on marktplaats.nl, after Tineke and Fred‘s. It is sold by one Fr from Zevenaar. Fr put the bike up for sale four days earlier. According to Fr, it is a ‘luxury station bike’ and ‘camping bike’. He is asking 199 euros for it. Fr explains the bike as follows:

‘Luxury sparta unisex bike with 3-speed shimano-nexus.
Striking specimen.
Looks like new.
Please note……fixed price!
Ideal for station, camping or for some nice touring.
Equipped with:
Front and rear battery lighting
Handy front and rear luggage rack
All-terrain tyres
3-speed gearbox
Comfortable drifter saddle
Integrated cable lock
Large dingdong bell
A real eye-catcher’¹

According to Fr, the price is fixed, but on the website you can make an offer, albeit only from 199 euros. Fr’s Sparta K-10 has three gears. The Sparta K-10s of Tineke, John and Fred that are still for sale do not have gears, the Sparta K-10s in Rue Verte in Brussels and on cyclonewebshop.be do not have them, and in the 2011 Sparta leaflet we did not see that option either. In short, we come across a Sparta K-10 with gears for the first time. There is a small typing error in Fr’s explanation in Dutch – the t in geïntegreerd is missing – but those who like to browse on marktplaats.nl read smoothly over that. One of the photos of Fr’s ad shows the loop attached to the back of the bike. You can clearly see how that loop forms the end of an integrated cable lock.

The architect’s photographic archive contains seven images that can be labelled as panoramic pictures. However, they only appear as such when the photographs are viewed in the archive, as strips of negatives. In order to see the panoramic construct, the viewer needs to be presented with two consecutive negatives. 

There are two kinds of panorama in the archive: the kind that can only be attributed to a kind of laziness or a need for efficiency on behalf of the architect, and another that originates from frugality. 

The former type of panorama is created when the architect is documenting the situation as it is: it is compulsory to document the context of the building or lot, as part of a building application. He simply pivots from left to right, capturing the first and second photograph consecutively. On the filmstrip a panorama appears. 

The other kind of panoramic picture only appears at the end of the film role. The last negative on the film has been exposed (the twenty-fourth or thirty-sixth), after which he exerts force onto the lever to move the film forward anyway. Some films are known to have, by accident, a twenty-fifth or a thirty-seventh negative. The plastic between the sprocket holes tears and the film does not advance enough. The result differs fundamentally from the other kind of panorama: there is no separation, no void between the negatives. Rather, there is a slight overlap. A thin, vertical strip of film that has been exposed twice, suggesting contiguity that might not be there. The two exposures might be from altogether different sites, creating a new situation.

A year ago, mid-August, just before sunrise, the mostly unlit office buildings line the road that leads to the underground parking. I turn off the ignition. I’m in F36. The walls are painted pink. Looking for the exit, I take the escalator and get stuck in an empty shopping mall. The music is playing but all the shops are closed off with steel shutters. So are the exits. I’m out of place. In keeping early customers out, the mall is keeping haphazard visitors in. I’m back in the parking lot. The elevator is broken. I take the stairs and walk by a homeless man, sleeping. There’s shit on the floor. I open the door that leads out of the stairwell. It slams shut behind me. There’s no doorknob. I find myself on a dark floor between mall and parking lot. People are sleeping; some are awake. Heads turn toward me. I start walking slightly uphill towards where I think I might find an exit, or an entrance. The scale of the architecture has shifted from car (F36) and customer (the closed mall) to truck. I find myself amidst the supply-chain. It takes five minutes, maybe fifteen, maybe more to get out and see the office buildings towering over me in the first light of day.

On a morning sometime in January 2022 at the dinner table, after a cozy sleepover, she took a deep sigh full of relief and cracked a charismatic smile while looking at the festive breakfast that was in front of us, saying how she felt. Alone in a park I wrote in my notes: ‘Spoiled & Blessed’. Half a year later I was going through my purse, dehoarding some stuff I gathered in the past weeks. I stumbled upon an old receipt from the laundromat. It had a drawing on it that I drew some time ago, when we were having drinks to round up an exhausting project that took way too much time and energy. After putting the receipt back in my purse, I returned to my work to finish some stuff. Back at my computer I emailed myself: ‘don’t forget to plant sunflower seeds’.

The torn off section of roofing on the grass has part of a text carved in it: ‘UDI’ and ‘EN’ are still legible. It must have come from another roof; the one shown in the photograph has no missing sections, nor visible repairs.

The roofing that is still on the garage shows a drawing of some kind. A floorplan for a squarish building with a supporting column along each side, or the layout for a tactical explanation, perhaps.

It has been snowing. A black BMW is parked on the other side of the street and is cut in half by the separation between negatives 4 and 5. Apart from a slight kink in the landscape, the negative on the right is a perfect continuation of the one on the left. The fence around the orchard, the branches of the apple tree and the power lines connect implicitly in the void between the negatives.

The door leading to the kitchen has a section in stained glass. The other day, I took a closer look at one of the spots on it, which I had half-consciously registered every time I passed it. On two square meters, there are three of them. All are oval in shape. Two of them seem to be flat bubbles of air, haphazardly produced during the manufacturing of the glass, I imagine. The third one, however, is peculiar. It drew my attention because it appeared to represent something. Upon closer investigation, it seemed to allude to different things. A model ship, like the ones in glass bottles. A dragon, like the one used on the Welsh national flag. A tailed, devilish figure riding a cloud-like motorcycle. What skills the glass worker must have had, to produce an image in a glass covered air capsule like this. I closed the door softly, as the microwave’s signal sounded.

Each night a plethora of amateur-astronomers gazes into the sky. Their instruments and locations are often inferior to the means available to professionals. Yet, what they lack in terms of technology and location, darkness and mirror surface, they make up for in the collectivity of their observations. They are patient observers, spread around the globe, not bound to the strict schedules and limited availability of the large telescopes in the Atacama Desert. 

When amateur astronomy became fashionable, it led to a surge of information stemming from a large group of distinct observers: seafarers, physicians, typists, masons. Theirs were valuable data, but if they were to be put to scientific use, they needed to be standardised. How to overcome the subjective element inherent in every empirical observation? The amateurs had to be instructed to recognize patterns, by means of visual examples. They had to be trained to use the right terms to describe their observations. They had to turn chaos into order. Recognize what they were looking at. A nebula. A red giant. Neptune’s faint blue-greenish colour resembling the flame of the gas stove.