Tuesday, January 30, 2018

Antoine-Laurent and Marie-Anne Paulze Lavoisier as The Lovers

Antoine et Marie-Anne Paulze Lavoisier, linocut with collaged washi,
2018 by Ele Willoughby
All too often history of science, or the history of science as retold by scientists, neglects to mention women. One of the things I want to do with my series of prints about the history of science is put those excluded back into the story. Sometimes, the missing women are hiding in plain sight! Invited to create a piece inspired by the Lovers tarot card, I thought of French scientists Antoine Lavoisier (26 August 1743 – 8 May 1794) and his wife Marie-Anne Paulze Lavoisier (20 January 1758 – 10 February 1836). Lavoisier is often referred to as the 'father' of modern chemistry, without any reference to his wife. Though many will be familiar with a image of the two, doing chemistry together. Their close friend, famed neo-Classical painter Jacques Louis David painted his Portrait of Anoine-Laurent Lavoisier and his wife in 1788. He also trained Marie-Anne Paulze in drawing and engraving, allowing her to accurately illustrate their experiements. And she most definitely appears in her own drawings and engravings documenting their work.

I hope considering them as a true (and loving team) is a more modern day interpretation of love and their history, as well as a more complete and accurate look at the development of chemistry. The couple, working closely together, modernized and quantified chemistry and the scientific method, recognized and named oxygen and hydrogen, explained the role that oxygen plays in combustion, helped modernize chemical nomenclature and discovered that mass is conserved in chemical reactions. While this has traditionally been described simply as Lavoisier's work modern scholarship points out that Paulze translated all his contemporaries, like Joseph Priestley and Henry Cavendish's manuscripts from English or Latin to French, took notes of all observations, illustrated all experimental set-ups, edited his reports and worked so closely with him we can't easily separate their roles. Perhaps most importantly, her translation of Richard Kirwan's 'Essay on Phlogiston and the Constitution of Acids' with her own footnotes pointing out all the errors in chemistry, convinced her husband to perform their own experiments, which ultimately disproved the popular but incorrect ideas about "phlogiston" (the supposed fire-like element released by substances during combustion) championed by George Stahl, and lead to the discovery of oxygen. Attributing everything to him alone is clearly not the full picture.


David - Portrait of Monsieur Lavoisier and His Wife.jpg
Portrait of Anoine-Laurent Lavoisier and his wifeBy Jacques-Louis David - Metropolitan Museum of Art, online database:
entry 436106 (accession number: 1977.10), Public Domain, Link

While clearly a devoted couple, their history as lovers is a bit complicated, especially looking back with modern eyes. They married in 1771, when Lavoisier was about 28 and Paulze was merely 13! Child marriage is a horrifying prospect and remains a scourge today, but Lavoisier was in fact recruited by Marie-Anne's father Jacques Paulze to rescue her. Both men gained most of their income from the Ferme Générale (the General Farm), a private consortium which paid the Crown for the priviledge of gathering certain taxes. A powerful nobel and member of the consortium, the 50-year-old Count d'Amerval made a formal proposal of marriage to the 13 year old Marie-Anne Paulze, who considered him "a fool, an unfeeling rustic, and an ogre". Wishing to protect her from such a fate, Paulze asked his friend Lavoisier to marry her instead. He agreed, and the couple settled down at the Arsenal in Paris, where he was able to further pursue his growing interest in chemistry and build a state-of-the-art lab. Marie-Anne became interested in these scientific pursuits and soon joined him in the lab. She received formal training in the field from his friends and colleagues Jean Baptiste Michel Bucquet and Philippe Gingembre, and the couple spent most of their time in the lab. Marie-Anne also famously hosted scientific salons with luminaries of the day.

Work Lavoisier undertook to help fund their research, including his role with the Ferme Générale and the tobacco commission, tragically lead to his execution during the French Revolution. She fought to defend his legacy after he was executed. She organized and arranged for the publication of his Mémoires de chimie, including a preface she wrote attacking the revolutionairies she blamed for her husband's death. The book was published by her former lover P.S. du Pont; the idea that the successful marriage and partnership of the Lavoisiers could survive a 10 year affair (1781-1791) with du Pont is quite foreign to modern eyes, but there was little controversy when French nobles of the time took a lover. In fact, when Lavoisier died, her entrusted his wife to his friend du Pont's care. Due to the upheaval of the times, du Pont was unable to repay the money he borrowed from her for his printing venture, and she pursued her financial claim against him and his son for years. The du Ponts moved to the United States, prospered*, repaid their dept and finally published Lavoisier's memoirs of chemistry.

This engraving by Mme Lavoisier shows one of their experiments in human respiration. She is clearly the one recording their data and documenting the experimental set-up on the right.
This drawing by Mme Lavoisier shows one of their experiments in human respiration. She is clearly the one recording their data and documenting the experimental set-up on the right.


Mme Lavoisier kept his name for the rest of her life, even during her short-lived second marriage to physicist Sir Benjamin Thomson, Count Rumford. She dumped Rumford as soon as she realized that he did not intend for her to work alongside him in the lab, or respect her Independence as she was accustomed. One of the best physicists of the day who revolutionized our understanding of heat, Thomson fled the U.S., abandoning his first wife after supporting the British side during the American Revolution. He was knighted by George III and made a count after moving to Bavaria, by the Holy Roman Empire. After the death of his estranged wife, he was attracted to the wealthy widow Paulze-Lavoisier, who travelled in the best scientific circles, and saw her wealth as a means of funding his research. Despite a four-year courtship, they soon found they were a bad match. They married in 1805 and separated in 1809.**

I draw on a variety of the aspects of historical tarot cards in my print. I've included the word "L'Amoureux" in French, for this French couple. I chose them, not only as a loving historical scientific couple, but because the card is associated with flames and the element of air. The Lavoisiers studied air and were the ones who really showed that air was not an element (in the modern chemical sense) by isolating various constituent gases like oxygen, and debunking the earlier phlogiston theory. I have specifically shown them with their famous phlogiston experiment apparatus. Further, not only did they recognize the role that oxygen played in combustion, Lavoisier and his friend Pierre-Simon Laplace also recognized that the process of respiration was in fact a slow, controlled combustion - hence the image of the lungs with flames (which is also an allusion to the flaming heart symbol and iconography).

The prints are 7.5" x 12.5" with an image area of 5" x 8.3". Each are printed on Japanese kozo paper, with collaged pink lungs and patterned vest.

As a printmaker, documenting the history of science with relief prints, I love that Marie-Anne Paulze Lavoisier also documented science with relief prints.

* His son Éleuthère, trained by Lavoisier as a chemist, opened a gun-powder manufacturing plant which ultimately became one of the biggest and most successful US companies, DuPont.

**One famous story about the ill-fated Rumford-Lavoisier marriage: annoyed that she had invited many guests without seeking his permission he locked their gate and removed the key. So, she spoke with her guests through the gate and then poured boiling water on his prized flowers. (see 'Women in Chemistry: Their Changing Roles from Alchemical Times to the Mid-Twentieth Century' by Marlene and Geoffrey Rayner-Canham).

NEVER COME BETWEEN A SCIENTIFIC LADY AND HER SALON.

Wednesday, January 17, 2018

Toronto Etsy Street Team Gallery Goodbye

Lowering the banner is gallery manager Emma Smith of LandfillDesigns
 This January we say goodbye to our gallery at 906 Queen St W! We had the ceremonial lowering of the Toronto Etsy Street Team Gallery banner. Our year long pop-up gallery adventure has come to an end. It was such a wonderful experience. We loved being able to curate art shows, bring handmade crafts into a gallery environment, have so many of you involved in our shows! Thanks to all the artists, makers, vintage sellers, and amazing volunteers and everyone who came out to our Openings, shows, markets and workshops! Special thanks to our fabulous curators, workshop hosts and volunteers!  Thanks to Graven Feather for welcoming us for the year! 



We’ll have to see what 2018 brings us now...

Tuesday, January 9, 2018

Looking back at 2017: science, art and life

Wunderkammer, interactive multimedia: linocut, collage, wooden box, electronics, sound files, 2017 by Ele Willoughby
With the new year, like many, I often like to look back. I find sometimes you don't see things accumulate or note acheivements. So, briefly, on a personal front, 2017 was a very interesting year. It was challenging, but over all, I'm quite proud. On one hand it's funny to start off talking about the acheivement of being in the running for a job I didn't get, but astronaut is no ordinary job. I was proud that I even had the guts to submit my application in the summer of 2016 for the Canadian Space Agency's job search. Each step of the year-long search, as I continued to advance I was a strange mixture of astonished yet confident that after all, it was something I could learn to do if selected. So I was very proud to be  one of the top 72 people selected from 3772 initial applicants, who were invited to the Astronaut Recruitment Assessment Centre! It was a unique experience; 3 and half days of gruelling mental, psychological and physical assessment, along with a very impressive and fascinating cohort of fellow applicants (only a third of whom were women). I've had so many questions and comments from people since this experience that I didn't expect. People I just met told me they were proud. Parents told me that they followed my progress with their kids, or asked me advice about how to encourage the next generation of potential astronauts. I wouldn't have imagined that even making it that far in their job search could impact people, but I'm humbled that it did and thank you all for your kindness, encouragement and support.

Another new experience this year was running an art gallery! I'm so glad that Emma talked me into taking on the Toronto Etsy Street Team Gallery, because truth is, I think I would have shied away from the financial risk. But it was a great experience and I'm proud of what we pulled off. I curated my first show, Wunderkammer, with a wonderful collection - a cabinet of curiosity in fact, of science art from some favourite and new-to-me artists. I went on to curate and organize shows about Canada, help foster Rebecca Vaughan curate and participate in Love Your Body, curate and participate in a Mesozoic themed the Dinovember show. I was also really pleased to take part in Tosca Terran's UnNatural History show at the gallery, where I showed my entire unnatural print collection.

2017 also some some great collaborations. WWEST's Phylo Women in STEM trading cards came out this spring. Definitely my favourite commission of 2016, was making and submitting five of my portraits of women. I have previously submitted some art for UBC's Dave Ng's earlier project to use trading cards as a natural historian's version of Pokemon. This latest set brings attention to women in science and technology, throughout history, and the hurdles facing women and under-represented groups. He told me he had seen my blog post about the death of physicist, material scientist and archeometry pioneer Ursula Franklin and it encouraged him to include her, as a great scientist, role model and Canadian. As you can see (above), I've also illustrated marine geologist Marie Tharp, physicist Lise Meitner, seismologist Inge Lehmann and proto-computer scientist Ada Lovelace. The sets are available from Phylo and you are even free to download and print your own! 

Because life is odd, the day after I learned that I did not advance to the top 32 astronaut candidates, Anthropologie approached me about collaborating on tee shirts. They loved my 'terms of venery' series of group nouns for animals.  They licensed two of my existing prints, 'An Ostentation of Peacocks' and 'A Kaleidoscope of Butterflies' and commissioned a third work. They wanted my portrait of my beloved, late, great Minouette the cat, but wanted it to fit in the venery series. While a group of cats is often known as a clowder, I remembered that it can also be called a glaring, and I thought that was a perfect combination for her fierce "Stop carving lino and feed me now!" look. I was very excited to work with one of my favourite clothing stores and it was a lovely experience to work with them. I was gratified that they wanted artwork that I had made simply because I wanted to.

 2017 also saw my home, studio and peculiar combination of jobs and interests as the subject of this Toronto Star article. I participated in another Bees (& the Birds) show. I did all the Toronto Etsy Street Team craft shows: the Midsummer Market, Etsy Made in Canada (where I enjoyed playing second fiddle for the first time) and the Christmas Maket. I sold at the One of a Kind Christmas show once again. I had artwork selected for the Leftovers VI Silent Auction, in Boise, Idaho, and 'Life as we knew it' and 'LUNAR' art shows at Art.Science.Gallery in Austin, Texas.

On the home front, our son turned four at the end of November, which means that he was able to start kindergarten in September. This is a big shift and I'm still getting used to it. He's now at school 6 hours a day, which frees me up to have much more freedom and control of my time and schedule and he loves it and is flourishing!

I love most of all that this list is very mixed: art, science, family life, and I'm keeping people guessing. When I was young I thought I had to choose, but I think in 2017 I did a good job of not choosing and being as much of a Renaissance woman as I can. I'm rather enjoying not having to define myself one way. This year once again promises new things and I'm looking forward to seeing what it brings.


Wednesday, December 20, 2017

Dinovember and One of a Kind and Scienterrific and the TEST Christmas Market

Well November is always a busy time of year! This year I also curated and showed in DINOVEMBER, November 4 to 14, a dinosaur themed art show at the Toronto Etsy Street Team Gallery! We had a number of fun and beautiful works including painting, printmaking and scupture; jewellery, housewares, cards and toys. Peggy Muddles of the vexed muddler outdid herself, with a large ceramic dinosaur heart (with anatomy inferred from modern-day bird and reptile hearts) with Cretaceous flora and fauna (palms, grains, mosses, and butterflies) which used a proximity sensor to trigger the playing of a sound file (a composition of electronic music inspired by the time period).



Fossil amonnite ring by Slashpile Designs

Terra Incognita by PaperParadigm
Dinosaur planters from
Sonic Bloom

Watercolour whimsical dinosaurs from Deirdre Wicks of Water in my Paint
Screenprinted T. rexes on paper and as stuffed animals by sunandstarsco

Dinosaur heart multimedia sculpture by the vexed muddler

Linocut dinosaurs and other Mesozoic creatures from minouette


The One of a Kind Show (November 23 to December 3) while always a bit of a marathon for handmakers selling their work, felt like it went faster than in previous years. I debuted my new booth, built by my husband. It's always great to see the "travelling circus" of artists and artisans again. Thank you very much to everyone who came out, helped me, said hello or purchased art!





The next weekend, Peggy Muddles hosted a Scienterrific #sciart pop-up market at the Toronto Etsy Street Team Gallery. Cause she's the best, she let me set-up and abandon my art work there and she sold it on my behalf. I was busy celebrating my son's 4th birthday! His actual birthday was during the One of a Kind, but we opted for the sane plan of delaying the party until afterwards. As one maker friend put it, "Throwing a birthday party during OOAK is like throwing a wedding while at the Olympics!"



Then last weekend was the always-fun Toronto Etsy Street Team Christmas Market at St Stephens-in-the-Fields church in Kensington Market. We had Krampus and Santa visit - as well as an unscheduled visit from the Toronto Fire Department, conveniently from the fire hall across the street due to an alarm! Thank you very much to everyone who came out. I thoroughly enjoyed myself.... but am thankful to be done with all shows and exhibits for 2017. Now I'm going to make some cookies and relax.



Tuesday, October 17, 2017

UnNatural History




My linocut imaginary menagerie: Snowflake beetles, Chrysanthemum snake, Elusive Cactibou, Iceberg Squid, Batbearoo, Hammerhead Hedgehorse, Duck-billed Deer, Winged Walrus, Mandriltee and Aeolian Jellyfish

 Last Friday, the 13th, was the Opening for 'UnNatural History', curated by Tosca Terán at the Toronto Etsy Street Team Gallery. There were costumes, Tarot readings, and prizes along with a fascinating show of art from 14 artists from Canada, the US, Iceland and Hungary. Works include painting, printmaking, multimedia, photography, bookbinding and sculpture and explore real and imaginary life forms and landscapes.

 This month and for the first two days of November, there gallerywill also host a series of workshops, from creating with thermoplastic, to bat skeleton articulation to decorating sugar skills to celebrate Dia de los Muertos. Find out more on the blog and come see the show while you can!
Paintings by Kristen D'Aquila
Photographs of marine plants and animals in multimedia light boxes by Holly McClellan

Sculptures with detail of one of the sculptures, and what lurks inside, by Lavinia Hanachiuc

Photographic sculptures of landscapes by Mar Hester
Hand-stitched, collaged animal illustrations by Judith Pudden



Multimedia by Kest Schwartzman, including cicadas, butterflies and a bat in metal masks and costumes
Kest Schwartzman

Kest Schwartzman

painting by Rosemary Stehlik
Photos by Wilder Duncan and Ralph Smith. Wilder, who is teaching the bat skeleton articulation workshop and does rogue taxidermy, arranges the bones he works with, in paterns like mandalas or geometric shapes and collaborated with still life photographer Smith

Pati Tozer's miniature etchings and hand-bound book, between Schwartzman's cicadas and D'Aquila's paintings

wundercabinet of beaded specimen by Cynthia Winders
Tosca Terán, glass sculptures with wool, moss and lichen, shaped like plankton
Images are 'Ambient Plague' by Elaine Whittaker about microbes around us. Bone sculptures by Tosca Terán, and figurines by Kathryn Bell

Tuesday, October 10, 2017

Seismologist Inge Lehmann for Ada Lovelace Day

Inge Lehmann, linocut on Japanese washi, 8" x 8" by Ele Willoughby

Today is the 9th annual international day of blogging to celebrate the achievements of women in technology, science and math, Ada Lovelace Day 2017 (ALD17). I'm sure you'll all recall, Ada, brilliant proto-software engineer, daughter of absentee father, the mad, bad, and dangerous to know, Lord Byron, she was able to describe and conceptualize software for Charles Babbage's computing engine, before the concepts of software, hardware, or even Babbage's own machine existed! She foresaw that computers would be useful for more than mere number-crunching. For this she is rightly recognized as visionary - at least by those of us who know who she was. She figured out how to compute Bernouilli numbers with a Babbage analytical engine. Tragically, she died at only 36. Today, in Ada's name, people around the world are blogging about women in STEM.
You can find my previous Ada Lovelace Day posts here. 

This year, to celebrate Ada Lovelace Day (ALD17), I'm writing about a great a Danish (or, as she put it the only Danish) seismologist who was at the forefront of the field in the early twentieth century, the one and only Inge Lehmann (1888-1993). She was a pioneer woman in science, a brilliant seismologist and lived to be 104. In 1936 she wrote an earth-shattering paper, with an astonishingly succinct title: P' in which she laid out her arguments supporting her discovery of the inner core of the earth.

We now know, as she first postulated, that the earth has roughly three equal concentric sections: mantle, liquid outer core and solid inner core. The crust, on which we live is merely a thin, um, scum really, on top of this slowly boiling pot. The only way to probe deep into the earth's core is to employ massive earthquakes, the waves they generate and the paths they follow. There are two main types of seismic waves used for studies of the globe, unimaginatively named Primary (or P, which are known as pressure waves or compressional waves) and Secondary (or S, which are shear waves). “P is used to denote longitudinal or ‘pressure’ seismic waves. Those that travel in the Earth’s mantle and crust only are represented by P; P’ represents P-waves that pass through the mantle into the core, and then pass through the mantle again,” she explained. The paths these waves can follow through the Earth depend on their nature, and the materials through which they travel.

Even if you don't regularly think about waves, you will be familiar with a type of compressional wave, namely sound. Read this aloud and the air molecules between your mouth and the ears of any listener (including your own) will compress and rarefy in a wave pattern as the sound is transmitted. Shear waves are different, and as the name implies, they are excited by a shearing motion (like you make with scissors, also known as shears). I can't describe a shear wave in air, or any other fluid, for the same reason you can't cut air with your scissors: fluids do not support shear.

Lehmann's 1936 paper presented this (simplified) three-shell model of the Earth.
She argued that P-waves recorded within the shadow zone are caused by
their interaction with a solid inner core. Today we know that in reality,
seismic waves curve as they travel through the layers of Earth.
Credit: Kathleen Cantner, AGI, based on Lehmann’s original figure, redrawn in 2001.
Imagine a glass of water with a straw; the straw will appear broken at the air-water interface, because light bends as it enters the water. Just like light travelling through different media, these seismic waves can bend, reflect or be transmitted at any boundary. The difference in physical properties between the mantle and outer core causes a P-wave shadow, due to diffractions at the boundary (like in the straw in water analogy). For S-waves, the shadow zone is absolute because liquids, like the outer core, do not support shear. Thus, no shear waves can make it through the outer core, and thus we can be certain the outer core is fluid. The faster moving compressional waves can move through fluids, but they refract at the boundary, which causes the shadow zone for seismic stations beyond 105° from an epicentre. Lehmann found that there were some late-arriving P-waves are much larger angles (142° to 180°) which had been vaguely labelled 'diffractions' (shown in orange on the diagram). These were P' waves which had travelled right through the Earth's core, then out through the mantle again to the other side. Some appeared stronger amplitude than expected (red lines, between the two shadow zones). There were also waves inexplicably arriving within the P-wave shadow, where no one expected compressional waves to arrive. She showed that these could be explained instead by deflections of the waves which travelled through the outer core at her postulated inner core boundary. These weird P' waves could only be explained by if there was another interface within the core, between an outer fluid core and an inner solid core!

Modern depiction of the Lehmann discontinuity where there's a
kink in the speed of mantle P waves for three different settings -
TNA = Tectonic North America, SNA = Shield North America
and ATL = North Atlantic. [*]
She later discovered a discontinuity in the mantle (confusingly also called the Lehmann discontinuity). She did important work well into her 70s and lived to be 105.

When she received the Bowie medal in 1971 (she was the first woman to receive the highest honour of the American Geophysical Union), her citation noted that the "Lehmann discontinuity was discovered through exacting scrutiny of seismic records by a master of a black art for which no amount of computerization is likely to be a complete substitute..." (*).

I think her accomplishments are downright astonishing. To have the exactitude to work with the data and the daring to neglect the irrelevant and offer up a simple, elegant - correct! - explanation is a rare and marvellous thing. To be the top of her field in 1936, when she was a pioneer for women in science and had to "compete in vain with incompetent men" (her words *) is heroic.

Women in Science and Engineering Trading cards starter pack
You can find my portrait of Inge Lehmann here. Both Lehmann and Ada, Countess Lovelace are among the portaits I contributed to the Phylo Women in STEM trading cards (which can be found at the link). The set can be downloaded and printed for free or you can purchase your own set as illustrated.
There are a grand total of three easily found photographs of Lehmann I was able to find on the internet. I based my portrait one of the earlier ones, to match the date of her phenomenal P' paper. I also show her model of the earth (as she herself presented it in 1936) in red-orange ink, complete with mantle, inner and outer core, and travel paths for rays through the layers, including into the shadow zone. One of the great geophysicists - one of the great scientists of the 20th century, Inge Lehmann should be remembered.