Today’s post is for those of you adicted to Masterpiece Theater’s miniseries “Mr. Selfridge.” Follow this link to see vintage footage of the great and legendary ballerina Anna Pavlova perform her signature piece “The Dying Swan,” which was choreographed in 1905 by Mikhail Fokine. The actual film was originally silent. However, it is most often shown dubbed with Camille Saint-Saëns’ “The Swan” from “The Carnival of the Animals (Le carnaval des animaux)”. Her last words were reported to be “Get my ‘Swan’ costume ready.”
Marcelo Del Pozo – An image with alternate realities
As I have mentioned before, I routinely scan the feature “The Week in Pictures” from a variety of websites. It strikes me how many images we are being bombarded with, so many that we have “The Week in Pictures” as opposed to “The Year in Pictures.”
In any event, in this past week’s NBC News “The Week in Pictures, April 4-April 11, 2013” there is a wonderful picture from Marcelo Del Pozo of Reuters showing a woman taking photographs of the art installation “Alice” by Spanish artist Cristina Lucas in the Andalusian Centre of Contemporary Art in Seville, Spain, on April 10.
It is a wonderful juxtaposition. First you see Alice with her hand sticking out one window of the house and her head out another and you’re thinking that you’re looking at a woman adjusting a doll’s house. Then you suddenly see the woman photographer and you say to yourself: “What the heck, what’s going on?” It’s only then that you realize that Alice is not quite truly human, and reality returns.
But remember that one of the goals of this blog is to discuss the magic of photography. And for that interim moment the illusion is complete.
Nikola Tesla in his laboratory
Among the great “scientist in the laboratory” photographs is the image of Figure 1, showing the great inventor Nicola Tesla (1856-1943) in his Colorado Springs laboratory. He sits in deadpan concentration at his reading undaunted by the tremendous (multiexposure) bolts of electricity flashing above him. It is just what Tesla wanted to portray, the safety of high powered alternating current as opposed to the dangers of high powered direct current.
Tesla was the ultimate showman. In that respect he is accurately portrayed by David Bowie in the film, “The Prestige,” starring Hugh Jackman and Scarlett Johansonn. This film is one of my personal favorites, and I recommend it to anyone who likes their period pieces with just a tad of science fiction.
Nikola Tesla was a Serbian-American inventor, physicist, and futurist. He came to America in 1884 to work with Edison. However, he soon found his own financial backers and broke with Edison to set up his own laboratory and company. He sold the rights to his AC induction motor patent to George Westinghouse and served as a consultant for Westinghouse in the development of alternating current, which indeed is a safer form of electrical energy. Tesla was well known for his high-voltage, high-frequency power experiments in New York and Colorado Springs. Beyond electrical power he made major contributions to radio transmission, radio control, and the development of practical X-ray instruments. He was truly one of the intellectual giants of the nineteenth and twentieth centuries.
I can never resist a photograph of Mark Twain; so I include below Figure 2, which is an image of Mark Twain in Tesla’s laboratory in 1894. I believe that what we are looking at is Twain igniting a phosphor coated gas discharge lamp by touching it because he is transmitting high frequency alternating current, from a Tesla coil, over the surface of his body. In a modern sense the picture is reminiscent of the famous candle lit paintings of sixteenth/seventeenth century French artist Georges de La Tour (1593-1652). I love the obscure image of Tesla looking on in amusement and the spherical flash of light creating a sphere on the left.
John Thompson – Street Life in London

Figure 1 – John Thompson, Flower Girls in Front of Concvent Garden, 1877. From the Wikicommons and in the public domain.
John Thomson (1837 – 1921) was one of the great Scottish photographers of the nineteenth and early twentieth centuries. In his early career he gained notariety as a travel photographer and was one of the first photographers to document the far east. In his later career he became a society photographer in Mayfair and was awarded the royal warrant.But what he is most remembered for today is his partnership with radical journalist Adolphe Smith. The two collaborated in the production of a monthly, Street Life in London, between 1876 – 1877, which was subsequently published in book form in 1878. The project was to document London street life, the lives of the people who scratched out there living invisible and just beneath the eyes of the middle and upper classes. These were images of chimney sweeps, and flower girls, and peddlars.

Figure 2 – John Thompson, The Crawlers, 1876-1877, From the Wikipedia posted by catus.man and in the public domain.
These powerful images represent one of the first great social commentary photographic series. and served to create a visual resonance to the stories of Charles Dickens. Life was not rosey on the streets of London. Take, for instance, figure 1, which shows flower “girls” in front of Convent Garden. They are not Eliza Doolittle. In Smith and Thompson’s own words:
“When death takes one of the group away, a child has generally been reared to follow in her parents’ footsteps; and the” beat” in front of the church is not merely the property of its present owners, it has been inherited from previous generations of flower-women. Now and then a stranger makes her appearance, probably during the most profitable season, but as a rule the same women may be seen standing on the spot from year’ s end to year’s end, and the personages of the photograph are well known to nearly all who are connected with the market…”
Truly, in creating Street Life in London, John Thompson defined the profession of photojournalism. The powerful images that chronicle social injustice in the twentieth and twenty-first centuries have their roots, and owe their essence to these photographs by John Thompson.
Marie and Pierre Curie in their laboratory

Figure 1 – Marie and Pierre Curie in their Laboratory. From the Wikicommons and in the public domain.
As classic examples of the photographic genre “Scientists at work in their laboratories,” I offer up, first a picture of Marie (1867-1934) and Pierre Curie (1859-1906) in their laboratory (Figure 1) and then a later picture of Marie Curie alone (Figure 2). The second most likely dates after Pierre’s untimely death.
Here the camera serves to chronicle, to capture a moment in time, and to place that moment in its historical context. These images serve three purposes. First, they are portraits of the Curies. Second, they recorded, and now show us, what a physics laboratory was like at the dawn of the twentieth century, And third, pershaps most significantly, since they were at some level posed, they show us the Curies in the way that they wanted people to see them. Image for public figures was as important then as it is now. Pierre looks more than a bit fatherly. And Marie appears demure, not to mention gorgeous in her younger days. What we see of her is her dedication to science, to family, and to country. Despite her taking on a then masculine endeavour, she violates no social norms.

Figure 2 – A later laboratory picture of Marie Curie. From the Wikicommons and in the public domain.
It is important to mention what remarkable people the Curies were. They were physical chemists in the late nineteenth and early twentieth centuries. Chemistry text books began with the essential definition of an element as an immutable substance. You could change its physical form. You could melt or vaporize it. You could react it with other elements. But you could never turn it into another element. But then the Curies’ measurements showed something very strange, elements could change into other elements.They were brilliant experimentalists. Look around at the scientific instruments that they used. Many of them were homebuilt and were the most accurate in the world. They checked and rechecked their calculations. But in the end, they opened up their minds and as scientists they embraced the epiphany before them. And they opened the door to a true understanding of the physical nature of the universe. In this regard, they are the architype of “the scientists.”
In ending, I’d like to draw your attention to a website that chronicles the arrival of these two Parisian dandies, or so they must have seemed to American westerners, on their arrival in Telluride, Colorado to buy dirt.
Scientists in the laboratory

Figure 1 – the author in the laboratory of Dr. Watt Webb in the Department of Applied Physics at Cornell University in 1975. (c) DE Wolf, 2013
While I was writing and researching my recent blog on Robert G. Edwards, I was struck by the importance of capturing images of people in their places of work and in their places of living. My father had a friend who in the 1960’s and 1970’s set out to take photographs of everyday things that he was pretty sure would no longer exist in, say twenty-five years. What images that show the way people live or lived gives us a momentary glimpse into another time. It is for this quality that we value nineteenth century photographs that aren’t just portraits but images of what it meant to live in the nineteenth century. And we may even forlonly wish that we had similar images of still earlier times.
So over the next few weeks one of my topics is going to be photographs of that chronicle people at work and street life, images that capture the Zeitgeist, the spirit of the times. I have a particular liking for images of famous scientists in their laboratories so there will be some of that as well.
And as a start, I’d like to post a picture of myself (Figure 1), in all my youthful geekiness, albeit sans pocket protector. The picture is from 1975 and shows me in the physics laboratory of my mentor Professor Watt W. Webb. I am shown standing next to the worlds first microscope-based fluorescence correlation spectroscopy instrument, which had a screaming 128 bit hardware correlator built by Dr. Dennis Koppel. What’s was it for? In those days we were establishing the fundamental ways in which biological membranes work, specifically how molecules move in these membranes.
Louis Vuitton – Moiré adventures with my IPhone
Yes, I will admit it, I have been walking the mall again, IPhone in pocket and ever on the prowl for interesting geometrics. Today’s IPhone image is a detail from a Louis Vitton window – how much more geometric can you get. And here I was struck my the wonderful Moiré pattern that I found.
The Moiré pattern is related to the problem of aliasing, where someone makes the mistake of wearing either a striped shirt or striped tie on television, and you see strobing as the stripes cross the pixel pattern on the TV. Another related phenomenon is when two musical instruments are tuned just slightly off frequency from one another, and you hear beats with a frequency that is the difference of the two instruments.

Figure 2 – Animation of the Moiré pattern that forms as a set of green lines is rotated in front of a set of red lines. The spatial frequencies in the horizontal direction change because of the rotation creating the Moiré pattern From the Wikicommons by P. Fraundorf under creative commons license.
Basically if you have a set of lines superimposed on one another, where the lines per inch (referred to in optics as the spatial frequency) of the sets are slightly different from one another, you will see a regular beat pattern, at the difference of the two patterns in lines per inch. You can see the same thing if you rotate two sets of lines even with the same pattern with respect to one another because rotation effectively creates a situation where one set of lines is no separated in the horizontal direction by a shorter distance. You can see this in the little animation of Figure 2.
I have here introduced the very useful optical concept of the spatial frequency. Sound is a wave; so two sound waves can interfere with one another. Light is a wave; so two light ways can interfere with one another. And equivalently any regular line pattern is geometrically equivalent to a wave, a so-called spatial wave; so two regular line patterns can interfere with one another and create Moiré patterns.
Of course, if the line patterns are two dimensional, say a regular mesh like a window screen or a sheer curtain, the beat or interference pattern is also two dimensional. Make the lines curved or three dimensional and very wonderful patterns can occur, like in my photograph.
Sometimes also the pattern can be quite unexpected if the lines or meshes at just discernible. In that case, the Moiré pattern can suddenly appear seemingly out of no where. For instance, when the wind blows a sheer curtain in front of a window screen.
Robert G. Edwards and the degrees of image recognition
There are degrees to image recognition. The meaning of some images is so crystal clear to us that we understand them on first viewing. An example would be the Madonna and Child. They appeal instantly to a collective consciousness, to common mythology, and common associations. Arguably, they are culturally read, but as long as you share the cultural context you know what they connote. I here offer as an example of these some of of the images of Annie Brigman that we have discussed in previous blogs. Then there are images that require some level of explanation – footnotes that can be contained within the image so that they become self explanatory. Consider, for instance, the Barbie Doll image that we spoke about yesterday. Take an image of an attractive nude woman holding a Barbie Doll and you just about get the point. Draw lines on her body to show where fantasy ends and reality begins and the whole point comes across. These lines are your footnotes. Finally, there are some images that require a historical or otherwise elaborate explanation. Show me a daguerreotype of a man in a stove pipe hat, and I start to get interested. Convince me, through facial feature, that it is indeed Abraham Lincoln, and the picture suddenly takes on a greater meaning picture.
A few months ago I discussed an image of Lesley and Louise Brown, a Madonna and Child. Louise Brown was the world’s first test tube baby and Lesley Brown her mother. Sadly, the recent publication of the image was to mark the early death of Lesley Brown. The image appeals to us in the sense of instant recognition, as mother and child. But, put in its historic context, it takes on a renewed and invigorated meaning. There is a whole generation of mothers, who could never have been mothers, and children, who could never have been born, without the development by Robert G. Edwards and Patrick Steptoe of in vitro fertilization.
This week there was another image. It seems to be a family portrait, like a million other family snapshots. Perhaps, one thinks, it shows a grandfather and grandmother with their daughter and infant granddaughter. We need the historic context to understand this image fully. It shows Robert G. Edwards, Lesley Brown, test-tube baby Louise Brown, and Louise’s own child. The image was taken to mark the occasion of Edwards being awarded the Nobel Prize in Physiology in 2010. Sir Robert Geoffrey Edwards, CBE, FRS (1925-2013) died this past Wednesday.
The Barbie Doll body image
As a scientist I’m always interested in the question of how to best present data visually. That is, how does one most effectively get one’s point across? So whenever I see an image that says it all, it is bound to get my attention.
Case in point, today I came across an image, which appears to have originated in Australia and has been making the round on Twitter and other social media. Here it is at the french website “24 Matins.” The photographs makes the very important point that real women don’t have bodies like Barbie. The image shows an attractive woman holding a Barbie, and drawn on the woman’s body is Barbie’s figure, illustrating what needs to be removed, which happens to be most of the woman, and what needs to be augmented. Well you know… As an example of “a picture is worth a thousand words” this is a gem. As always it’s all about the power of the image.


