A cusp of history in a painting

A cusp of history in a painting

"An Experiment on a Bird in the Air Pump" (1768) by Joseph Wright of Derby

Originally published 3 September 1990

On Thurs­day of this week [in 1990] the Met­ro­pol­i­tan Muse­um of Art in New York will open a show of the works of the 18th cen­tu­ry painter Joseph Wright of Der­by. The show had its ori­gin at the Tate Gallery, Lon­don, and moved on to Paris before arriv­ing here.

Wright is a sec­ondary fig­ure in the his­to­ry of British art, over­shad­owed now as in his own time by such giants as Reynolds and Gains­bor­ough. But two of his paint­ings, espe­cial­ly, secure his place in the his­to­ry of art: A Philoso­pher Giv­ing a Lec­ture on the Orrery, and An Exper­i­ment on a Bird in the Air Pump.

The paint­ings are sig­nif­i­cant in British art for their use of indi­rect arti­fi­cial illu­mi­na­tion. In The Orrery (an orrery is a mod­el solar sys­tem) the illu­mi­nat­ing can­dle is hid­den behind a spec­ta­tor; in The Air Pump the light source is obscured by a liq­uid-filled jar. In both paint­ings, we see the light reflect­ed in the faces of the spec­ta­tors and in the gleam­ing brass, wood, and glass of the sci­en­tif­ic equip­ment being demonstrated.

A Victorian look

The paint­ings com­bine real­ism and roman­ti­cism in a way that antic­i­pates much of 19th cen­tu­ry art. The Air Pump, for exam­ple, is dat­ed 1768, but has the look of a Vic­to­ri­an set piece from a cen­tu­ry later.

The paint­ings are also impor­tant doc­u­ments in the his­to­ry of sci­ence. They visu­al­ly cap­ture the moment when two cen­turies of rev­o­lu­tion­ary sci­en­tif­ic achieve­ment gave birth to mod­ern tech­no­log­i­cal civilization.

In The Air Pump, a nat­ur­al philoso­pher demon­strates the prop­er­ties of the vac­u­um to a small mid­dle-class audi­ence of adults and chil­dren. The vac­u­um is pro­duced by a hand-oper­at­ed pump. The two halves of a Magde­burg sphere lie on the table, sug­gest­ing that the force of air pres­sure has already been demon­strat­ed. In this clas­sic exper­i­ment, the halves of the sphere are placed togeth­er with­out being mechan­i­cal­ly con­nect­ed in any way, like two cupped hands. The air inside is evac­u­at­ed and then some­one in the audi­ence is invit­ed to pull the halves apart. The sphere is held tight­ly closed by the pres­sure of the air outside.

Now it is time to observe life’s vital need of air. A white bird, a cock­a­too, has been placed in a glass globe, and the globe evac­u­at­ed. The bird fal­ters. We are admit­ted to the scene at the moment when the bird will either expire or be allowed to revive by the com­pas­sion of the demon­stra­tor — whose hand is del­i­cate­ly poised on the valve that will re-admit the air.

The demon­stra­tor has the pierc­ing eyes, dis­ar­rayed hair, and demon­ic stare of the arch-magi­cian. He looks straight out of the pic­ture, invit­ing us into his audi­ence, as if say­ing, “Look, by my knowl­edge of the secrets of nature I pos­sess the God-like pow­er to with­draw life or to restore it.” This cen­tral fig­ure of Wright’s paint­ing bears a strik­ing resem­blance to Isaac New­ton, whose com­mand­ing achieve­ments con­tin­ued to dom­i­nate British sci­ence even in Wright’s time, a half-cen­tu­ry after the great physi­cist’s death.

To the right of the appa­ra­tus, a gen­tle­man of the new­ly-pros­per­ous Eng­lish mid­lands urges his daugh­ters to look and be edi­fied by the exper­i­ment. Fright­ened, they turn away from the bird’s plight. This earnest father might be tak­en to rep­re­sent Josi­ah Wedge­wood, ceram­ics man­u­fac­tur­er, or Eras­mus Dar­win, physi­cian and grand­fa­ther of Charles Dar­win, or any of the oth­er mem­bers of the Lunar Soci­ety, a group of curi­ous, inven­tive men who came togeth­er each month in Birm­ing­ham on the night of the full moon, when trav­el over rough and dan­ger­ous roads was made rel­a­tive­ly safer by moonlight.

The group includ­ed Joseph Priest­ly, the dis­cov­er­er of oxy­gen, John Wilkin­son, iron­mak­er, John Baskerville, print­er, William Small, astronomer, Ben­jamin Franklin, diplo­mat and physi­cist, and James Brind­ley, civ­il engi­neer. Togeth­er they con­sid­ered the poten­tial of sci­ence for trans­form­ing soci­ety. These were the men who made the Indus­tri­al Rev­o­lu­tion. They were Joseph Wright’s patrons, and not by chance did the artist of The Air Pump place a full moon out­side the window.

At the left of the paint­ing, three young men watch in rapt fas­ci­na­tion as the nat­ur­al philoso­pher manip­u­lates the very air we breathe (one of them is tim­ing the bird’s strug­gle with a pock­et watch). It is not hard to imag­ine among these curi­ous onlook­ers James Watt, per­fecter of the steam engine, who under­stood bet­ter than any­one else the poten­tial of air and vac­u­um to dri­ve machin­ery, or Math­ew Boul­ton, his entre­pre­neur­ial partner.

The Watt-Boul­ton engine, which appeared in 1776, was sim­i­lar in design or con­struc­tion to the air pump on the table, although very much larg­er. Watt and Boul­ton too were mem­bers of the Lunar Society.

What were they thinking?

In 1768, the year of Wright’s paint­ing, the grand forces of nature, described sci­en­tif­i­cal­ly in the age of New­ton, were still most­ly sub­jects for quaint demon­stra­tions in rent­ed rooms by rov­ing philoso­pher-magi­cians. But with­in the audi­ences were the men who would turn the forces of nature to prac­ti­cal use, first in Britain, then on the con­ti­nent and in Amer­i­ca. In Joseph Wright’s paint­ing The Air Pump we stand on a cusp of his­to­ry, the nexus between the Sci­en­tif­ic and Indus­tri­al Revolutions.

But who is this fel­low seat­ed at the right, chin on hands, obliv­i­ous to the cock­a­too’s strug­gle? He seems to be morose­ly con­sid­er­ing the can­dle-obscur­ing jar of liq­uid, which con­tains a part­ly decayed skull. It would be won­der­ful to know what thoughts Joseph Wright of Der­by imag­ined in this man’s mind, what doubts, what anx­i­eties, as from the moment of his­tor­i­cal bal­ance so bril­liant­ly evoked by the com­po­si­tion of the pic­ture the world tum­bles pell-mell into a brave new future.

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