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Laboratory Life

3/26/2021

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Latour, Bruno, and Steve Woolgar. 1979 & 1986. Laboratory Life: The Construction of Scientific Facts. Princeton: Princeton University Press.
 
Review by Michael Beach

​This work examines one of the large questions in the field of Science, Technology, and Society (STS). Are scientific facts discovered, or constructed? For the authors, facts are constructed.

Among the ideas of this work, Bruno Latour and Steve Woolgar describe reducing disorder in data as lowering noise, or increasing the signal-to-noise ratio (S/N) between data that support a specific hypothesis, and those that don’t. Data that don’t support a hypothesis are not necessarily counter-finding data, they are just not supporting data, hence noise. This is a concept I am very familiar with from my work in satellite and broadcast networking. It also directly relates to the authors’ concept of inscription. When data are created through process, the result is inscription. As theories become accepted they tend to change into tools to further test new theories. Tools can be physical machines or processes. When the machine or process become normalized they are said to be 'black boxed'. Such black boxes are no longer questioned, but are simply accepted. In labs, the machines (black boxes) referred to take information in and spit out printed material (data sheets or curves). It is the interpretation of data or curves that come to represent what matters in the argument for one idea over another. The more isolated one point of data is over others, the more distinct the information (higher S/N), and the more it supports a specific idea.
 
There are lots of steps along the way in the machine input, processing, printing, and transcribing of data into descriptive curves. Part of the work’s argument is that without all the manipulation a distinctive curve would not result. It is just as likely, the author’s say, that another set of complex manipulations could lead to a completely different looking curve, and a different conclusion. This is especially true if earlier curves had led to a different machine (black box) to process data in a different way.
 
My satellite and broadcast example includes the use of two tools. One is called a spectrum analyzer (SA), the other is called an integrated receiver decoder (IRD). Anyone who has ever worked with satellite or broadcast signals is familiar with these tools. In satellite, for example, after a transmit earth station (uplink) sends a signal to the satellite, and the satellite receives and sends the signal back to earth to a receive earth station (downlink), signal parameters can be both displayed by the SA, and made sense of by the IRD. Both machines have complex electronic systems within them. For example, the IRD has to first demodulate the radio frequency (RF) energy, then decrypt the data stream, then decode the information within the data stream, then transform the information into something a human can understand (audio, video, text). The SA similarly requires many parameter adjustments until the energy sent through the air can be displayed and measured in a standard format, typically comparing energy density levels at given frequencies (instantaneous or averaged over some period of time). Without all that effort the information does not really exist from the perspective of Latour and Woolgar. In fact, without the equipment, intelligence (audio, video, text) would simply be lost in space.
 
I’m reminded of basic communications theory. In order for communication to happen someone must have an idea, encode it (i.e. speech), and send it across a medium. The requirement does not stop there. Someone else must perceive the signal within the medium, and have the knowledge required to decode the information (shared language and context). Does the knowledge actually exist before all those communication steps are taken? Many in the field of STS would argue that knowledge not shared is not really knowledge. Chapter 5 of Laboratory Life emphasizes the need for a form credit in order to incentivize scientists to share or communicate findings, which in turn causes knowledge creation. This idea doesn't seem to sit well with Robert K. Merton's scientific norms, but are more akin to Ian I. Mitroff's counter-norms. Because of all the required inscription effort, the authors (Latour and Woolgar) argue that such knowledge is constructed rather than discovered.
 
Below is a typical SA plot. The square shape in the middle is the desired signal. The somewhat horizontally flat lines at either side are a representative measurement of the “noise floor”. There is never an absence of noise as radio frequency (RF) energy is always present everywhere. It is generated by the sun and many man-made devices. To obtain the S/N ratio is a simple comparison of the power measurement at a representative (average) frequency at the top of the desired signal as compared to power as measured at a representative (average) place in the noise floor. The two are then divided into a ratio. Depending on the sensitivity rating of the IRD in use, there is a minimum desired threshold. All measurements are in a decibel (dB) scale. Note the specificity of the measurement scales, as well as several 'settings' in the bottom right corner required to construct the graph. All of these scales and settings are adjustable within the black box of a spectrum analyzer. To Latour and Woolgar's point, changes in scales or settings (or principles and processes leading to creation of the SA) would yield data depicted differently on the plot.

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The Story of a White Blackbird

3/14/2021

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De Musset, Alfred. 1903 & 1917. The Story of a White Blackbird. Vol. 13, in The Harvard Classics Shelf of Fiction, edited by Charles W. Eliot and William Allan Neilson, translated by Katharine Royce, 391-426. New York: PF Collier & Son.
 
Review by Michael Beach
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This story is an allegory, perhaps maybe autobiographical. The main character is also the narrator, telling his own story. A little blackbird is rejected by his family when white plumage begins to show on its body. Eventually the family leaves him to himself. In his sadness, he travels to seek a new tribe. A number of bird families initially open their flock to him until they discover that he is actually a blackbird. Then they want nothing to do with him. He ventures about through a number of different animal species seeking a new tribe. The pattern is the same, initial acceptance ending in eventual rejection because he is, after all, a blackbird.

The blackbird’s attitude grows steadily more and more gloomy until he hears two birds speaking. One says to the other, “If you ever succeed, I will make you a present of a white blackbird!” He comes to recognize that he is less an oddity and more a rarity. His life then turns for the better as he comes to depend on himself, and is less concerned about finding a tribe.

The work is written in a way that can appeal to children as a simple story, yet adults can read many philosophical and sociological threads within it as well. 
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The Mobile Workshop

3/8/2021

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Mavhunga, Clapperton Chakanetsa. 2018. The Mobile Workshop: The Tsetse Fly and African Knowledge Production. Cambridge and London: The MIT Press.

Review by Michael Beach

Among many threads, Mavhunga makes a point around ‘thingamication’. He shares examples throughout the book on colonial (and later) white perspective on African people as objects of study, control, labor, and information.

One striking example was the use of fences in building corridors through tsetse infested areas. Local labor was used alongside a thing called a bulldozer to clear forest where the land was too steep for the machine. They were also used to put in fencing, then funneled through those fences and ‘de-flying’ stations while moving along the fenced paths (182). The roads themselves were also a product of African labor, mostly built to allow for traffic between white-owned farms as well as for Africans to get from their homes to work in mines or on farms. These same Africans were able to move through traditional paths in ways that avoided infested areas during infested times before the belief that roads and fences were necessary.

Another particularly difficult approach from the perspective of Mavhunga was government creation of villages as a prophylactic. This effort removed people from their ancestral homes to gather them in new communities in between white-owned farms. Clearing and building up these small towns forced elimination of tsetse habitat (as well as habitat for nature in general), lowering the threat to sparse white-owned farms. The towns became a form of human shield. This approach lead to overcrowding of people in the buffer zones, and over burdening of the soils around the new towns (153). Mavhunga gives examples of eventual movement patterns adopted by officials that were not all that different than those previously employed by locals, but instead of preventative movement efforts these were about damage control (161).
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I’ll share one more human-as-object example. When authorities added chemical efforts to ‘mechanized phytocides’ (141) Africans again became a tool for the effort. While pilots sprayed less effectually from the thing called an airplane, African workers called ‘spray boys’ were given backpack pneumatic sprayers to go directly into the infestation. This put them as risk both from the fly and from the chemical poisons. Mavhunga offers a great deal of insight over several chapters about which chemicals were used during various periods and the effect on the fly, the plants, the environment, wildlife, and humans who both applied the poison and lived on the affected land. Decision makers only backed off aggressive use of chemicals when whites in the area began to complain after the shift from organic to synthetic pesticides (152).

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