{"id":9796,"date":"2020-12-08T06:23:00","date_gmt":"2020-12-08T11:23:00","guid":{"rendered":"https:\/\/artthescience.com\/magazine\/?p=9796"},"modified":"2020-12-07T21:29:18","modified_gmt":"2020-12-08T02:29:18","slug":"features-between-the-sand-artwork","status":"publish","type":"post","link":"https:\/\/artthescience.com\/magazine\/2020\/12\/08\/features-between-the-sand-artwork\/","title":{"rendered":"FEATURES – Between the Sand Artwork"},"content":{"rendered":"\n

Interactive Science-Art Helps Visualize Underground Contamination<\/h2>\n\n\n\n

<\/p>\n\n\n\n

Pollution often conjures images of smokestacks rising into the sky or dirty water flowing down a stream. But what about the pollution beneath our feet\u2014the contamination moving among particles of soil or between grains of sand?<\/p>\n\n\n\n

Artist and software developer Owen Fernley<\/a> brings this often unspoken underground contamination to life with his work Between the Sand<\/em><\/a>. This online interactive artwork shows how gas moves between grains of sand below the surface. Once the viewer opens Between the Sand<\/em> and clicks on the virtually generated sand grains on the screen, gaseous contamination begins to move through them. The movement of the gas through the sand follows the Invasion Percolation model, an algorithm used in environmental engineering research and known for following predetermined pathways. Therefore, this mesmerizing work serves as a valuable educational tool.<\/p>\n\n\n\n

Between the Sand <\/em>is the final creation from Fernley\u2019s two-week-long Science Artist Residency<\/a>, a program facilitated by the Canadian not-for-profit Art the Science. It is designed to immerse an artist in scientific research (Phase I), showcase the artwork inspired by the residency to the local community (Phase II), and share a globally available version of the work online via Art the Science\u2019s digital Polyfield Gallery<\/a> (Phase III).<\/p>\n\n\n\n

\"Artist
Artist Owen Fernley and several members of Dr. Kevin Mumford\u2019s research group. (From left to right: Matan Freedman, Owen Fernley, Nick Pease, Kevin Mumford, Caroline Wisheart, and Cole Van De Ven). Image: Julia Krolik<\/figcaption><\/figure>\n\n\n\n

Phase I occurred March 19\u201330, 2018, when Fernley spent his days engrossed in the work of Dr. Kevin Mumford<\/a>\u2019s environmental engineering laboratory at Queen\u2019s University. The research group studies the movement of liquids and gases in the porous underground. Specifically, the team investigates how hazardous chemicals move below the surface and how to remediate contaminated sites.<\/p>\n\n\n\n

After entering the lab, Fernley quickly learned about the well-tested and extensively used Invasion Percolation algorithm. Some of the group\u2019s research focused on exploring its limitations. \u201cI had to drop my expectations; learning about this algorithm and some of the other modelling challenges the research group faced was even better than building an algorithm from scratch,\u201d recalls Fernley. \u201cFor the first few days, I mainly tried to follow the breadth of research the group was working on. There was a lot to take in, and I became a student by necessity.\u201d<\/p>\n\n\n\n

After speaking with multiple researchers in the lab, one graduate student\u2019s project caught his eye. Cole Van De Ven<\/a>, now a postdoctoral fellow at the University of British Columbia, was conducting experiments to understand how a gas leak\u2019s speed affects its movement underground.<\/p>\n\n\n\n

The setup, which looks much like an ant farm, involved injecting gas into a thin layer of sand saturated with water and compressed between two glass plates. As the gas seeped through the space between the sand grains, intricate branching patterns emerged. \u201cThe experiments were visually beautiful, and I found myself genuinely interested in them,\u201d Fernley says.<\/p>\n\n\n\n

\"View
Top of a freshly-packed sand column filled with water and awaiting an injection of gas. Image: Owen Fernley<\/figcaption><\/figure>\n\n\n\n
\"Sand
Sand column used in Cole Van De Ven\u2019s experiments. Image: Cole Van De Ven | Raw image from the experiment reveals gas percolating through the sand column. Image: Cole Van De Ven<\/figcaption><\/figure>\n\n\n\n

And thus, the seed for Between the Sand<\/em> was planted in his mind.<\/p>\n\n\n\n

By the end of his residency, Fernley decided to build a program that resembled Van De Ven\u2019s experiments as closely as possible. Initially, he created a coded version of his observations by digitally replicating the sand\u2019s colour and distribution within the glass-walled experiments. He first used circles to represent the sand grains, but he later swapped them out for actual images that he captured during the residency using the lab\u2019s microscope.<\/p>\n\n\n\n

\"Microscope
Microscope view of sand grains used in experiments. Image: Owen Fernley<\/figcaption><\/figure>\n\n\n\n

\u201cIt wasn\u2019t until I was playing with the positions of each sand grain that I noticed how the space between the grains shifted in fascinating new ways with every new arrangement,\u201d Fernley says. As he rearranged the grains, new pathways between them emerged and old pathways disappeared. He realized that the empty space surrounding the grains was responsible for driving the contamination patterns he observed.<\/p>\n\n\n\n

With this understanding in mind, Fernley began chasing the empty space between the sand. Although he could not replicate the complex physics of Van De Ven\u2019s experiments, he dedicated himself to using creative coding as an approximation to better understand the Invasion Percolation algorithm.<\/p>\n\n\n\n

Creative coding, according to Fernley, is \u201cprogramming software for no other purpose than to program software.\u201d Essentially, it\u2019s experimenting in a digital setting. \u201cAs an analogy, take baking, not because you\u2019re interested in making something people can eat, but because you\u2019re interested in what might happen if you double the baking powder and add paprika,\u201d Fernley explains. \u201cThe nice thing about software is you don\u2019t have to throw out your failed experiments; you can just pick up wherever you last saved.\u201d<\/p>\n\n\n\n

\"Zoomed
Screenshot of digital sand grains. Image: Owen Fernley<\/figcaption><\/figure>\n\n\n\n

\u201cI like to think of this project as \u2018digital mimicry,\u2019\u201d Fernley says. \u201cI wanted to recreate what it was like to see gas injected into a column of sand, continuously, and be able to just watch it, like a digital lava lamp\u2026In a way, I resolved to make something both functional and functionless.\u201d<\/p>\n\n\n\n

To begin implementing the Invasion Percolation algorithm in the artwork, Fernley needed to map out the empty space between his digital sand grains to calculate how the contamination would flow through them. \u201cThe [Invasion Percolation] algorithm is very similar to a maze-solving algorithm, and needs a maze to solve,\u201d he says. \u201cOtherwise, it just expands evenly.\u201d<\/p>\n\n\n\n

Determining the empty space for the maze was no longer in the realm of creative coding; it required specific calculations. To do this, Fernley placed a grid of squares smaller than the sand grains under his digital display of sand. Imagine an expansive checkerboard with thousands of giant checkers spilled on top. He then measured the distances between the centre of each square and the centre of the nearest sand grain to determine which squares fell under the grains and which fell outside. The Invasion Percolation algorithm could now use the pathways between the grains\u2019 positions as its maze to figure out where the contamination would travel.<\/p>\n\n\n\n

\u201cIt\u2019s never easy trying to make something complicated look smooth and unassuming,\u201d Fernley admits.<\/p>\n\n\n\n

\"Screenshot
Screenshot of grains overlaid on spaces, which are removed (right) to show the pathways between the sand. Lighter shades are harder to invade. Image: Owen Fernley<\/figcaption><\/figure>\n\n\n\n
\"Screenshot
Screenshot of Invasion Percolation algorithm following invadable spaces. Image: Owen Fernley<\/figcaption><\/figure>\n\n\n\n

Art the Science\u2019s pilot immersive residency program culminated in Between the Sand<\/em>, a visually stunning work of creative coding. However, not only does this work please the eye; it also tells a valuable story about environmental contamination, making this interactive artwork a mesmerizing learning tool.<\/p>\n\n\n\n

After launching Between the Sand<\/em>, viewers can take control of their own journey through the contamination process. After initiating the artwork by clicking anywhere on the sand-filled screen, a dark pattern representing gas slowly permeates throughout the sand grains following the Invasion Percolation algorithm until all the space is filled. By clicking the \u201cEXPLORE\u201d tab in the upper left corner, viewers can access controls that influence the pattern\u2019s speed and direction. Adjusting variables, including flow direction, pressure, and diffusion, shows viewers how these factors impact the contamination pattern in real time. These variables are just a few that the Mumford group takes into account in its research endeavours. Other settings are available to help viewers understand the inner workings of Between the Sand<\/em>, such as seeing the measurements used to map the contamination pathways.<\/p>\n\n\n\n

\"Screenshot
Screenshot of user interface panel (Phase III). Image: Owen Fernley<\/figcaption><\/figure>\n\n\n\n

First showcased in 2019 as an exhibition at the Modern Fuel Artist-Run Centre<\/a> for Phase II of the residency, the artwork initially engaged the local community in research undertaken by scientists within that community. Now, Fernley has developed a version of Between the Sand<\/em> for Phase III\u2014a digital form shared globally via Art the Science\u2019s online Polyfield Gallery.<\/p>\n\n\n\n

\u201cI am hoping that anyone who sees the work will have the same sensation I had when I observed the experiment in real life, and in seeing this, appreciate how contamination moves underground,\u201d Fernley says.<\/p>\n\n\n\n

\u201cIn the end, I am hoping the work is relaxing and visually interesting, but also shows you a flow pattern that we don\u2019t see in the open air or even under water.\u201d<\/p>\n\n\n\n

This is the second of two blog posts<\/a> chronicling the <\/em>Between the Sand Science Artist Residency<\/em><\/a>. <\/em><\/p>\n\n\n\n

For more by Owen Fernley, visit his website<\/a><\/em> or Twitter<\/a>.<\/em><\/p>\n\n\n\n

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