How Photos Were Transmitted by Wire in 1937: The Innovative Technology of a Century Ago

When did you last send some­one a pho­to? That ques­tion may sound odd, owing to the sheer com­mon­ness of the act in ques­tion; in the twen­ty-twen­ties, we take pho­tographs and share them world­wide with­out giv­ing it a sec­ond thought. But in the nine­teen-thir­ties, almost every­one who sent a pho­to did so through the mail, if they did it at all. Not that there weren’t more effi­cient means of trans­mis­sion, at least to pro­fes­sion­als in the cut­ting-edge news­pa­per indus­try: as dra­ma­tized in the short 1937 doc­u­men­tary above, the visu­al accom­pa­ni­ment to a suf­fi­cient­ly impor­tant scoop could also be sent in mere min­utes through the mir­a­cle of wire.

“Trav­el­ing almost as fast as the tele­phone sto­ry, wired pho­tos now go across the con­ti­nent with the speed of light,” declares the nar­ra­tor in breath­less news­reel-announc­er style. “It’s not a mat­ter of send­ing the whole pic­ture at once, but of sep­a­rat­ing the pic­ture into fine lines, send­ing those lines over a wire, and assem­bling them at the oth­er end.”

Illus­trat­ing this process is a clever mechan­i­cal prop involv­ing two spin­dles on a hand crank, and a length of rope print­ed with the image of a car that unwinds from one spin­dle onto the oth­er. To ensure the view­er’s com­plete under­stand­ing, ani­mat­ed dia­grams also reveal the inner work­ings of the actu­al scan­ning, send­ing, and receiv­ing appa­ra­tus.

This process may now seem impos­si­bly cum­ber­some, but at the time it rep­re­sent­ed a leap for­ward for mass visu­al media. In the decades after the Sec­ond World War, the same basic prin­ci­ple — that of dis­as­sem­bling an image into lines at one point in order to reassem­ble it at anoth­er — would be employed in the homes and offices of ordi­nary Amer­i­cans by devices such as the tele­vi­sion set and fax machine. We know, as the view­ers of 1937 did­n’t, just how those ana­log tech­nolo­gies would change the char­ac­ter of life and work in the twen­ti­eth cen­tu­ry. As for what their dig­i­tal descen­dants will do to the twen­ty-first cen­tu­ry, as they con­tin­ue to break down all exis­tence into not lines but bits, we’ve only just begun to find out.

via Kids Should See This

Relat­ed con­tent:

The His­to­ry of Pho­tog­ra­phy in Five Ani­mat­ed Min­utes: From Cam­era Obscu­ra to Cam­era Phone

Watch a Local TV Sta­tion Switch From Black & White to Col­or for First Time (1967)

Cre­ative Uses of the Fax Machine: From Iggy Pop’s Bile to Stephen Hawking’s Snark

The His­to­ry of Amer­i­can News­pa­pers Has Been Dig­i­tized: Explore 114 Years of Edi­tor & Pub­lish­er, “the Bible of the News­pa­per Indus­try”

From the Annals of Opti­mism: The News­pa­per Indus­try in 1981 Imag­ines its Dig­i­tal Future

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities, the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les and the video series The City in Cin­e­ma. Fol­low him on Twit­ter at @colinmarshall or on Face­book.