J'suis tombé sur cet article ce matin. Ca m'a fait penser au bon vieux temps du forum "communautés résilientes", où les seuls sujets qui prenaient, c'était ceux qui se demandaient comment avoir internet après la fin du monde
Sans blague, pouvoir communiquer c'est bien.
https://gizmodo.com/barbed-wire-fences-were-an-early-diy-telephone-network-1493157700Au début du vingtième siècle, apparemment c'était assez courant dans des communautés rurales aux US, d'avoir un réseau de téléphone autogéré. Il y avait une seule ligne pour tout le monde, comme quand on partage une fréquence radio. Le support : les fils barbelés, dont le réseau reliait déjà toutes les fermes de toutes façons. On peut imaginer qu'il suffisait d'ajouter quelques ponts entre des clôtures choisies, et de faire attention à isoler les plus grosses fuites.
Comme le réseau était partagé, des gens se retrouvaient aussi dans des "appels groupés" pour passer le temps ensemble.
Une recherche rapide montre plusieurs sources qui confirment l'usage répandu de tels systèmes. Et l'article est accompagné de quelques commentaire nostalgiques.
Before Ma Bell came to town, and long before DSL, it was barbed wire, of all things, that brought rural communities together. A Sears telephone hooked up to barbed wire—miles of which were already conveniently strung along fences—connected far-flung ranches in the recently settled American west. Thus an ingenious and unregulated telephone system sprung up a hundred years ago.
More than just physical wire differentiated these rural telephone systems and their more formal urban counterparts. Without switchboards, without individual lines, and without telephone fees, the barbed wire telephone system became its own social network. Today, we might see elements of "personalised ringtones, chat rooms and online music" in this telephone network, as Bob Holmes writes in a feature at New Scientist.
Since the system had no switchboard, every telephone along the fences would ring at the same time. Each house had its own distinctive ring—two short one long, for example—and it was considered impolite to listen in on another's call. Of course, when things got lonely out there on the ranch, there was no guarantee of privacy.
But to expect a network of private, secure connections was all wrong, even in those pre-NSA days. The communal line became a thing unto itself, according to historian Rob MacDougall:
Talk was free, and so people soon began to "hang out" on the phone, just as they do today in online social networks. "People would read the newspaper over the telephone," says MacDougall. "They'd have musical nights where someone would play their banjo, someone else would sing along, and others would listen." The shared line could even serve as a rudimentary broadcasting system. On many fence-phone networks, a single, very long ring would signal a "line call," an announcement of interest to everyone on the system. This might be a weather report, weekly livestock prices, word that the train would arrive late, or news of an emergency such as a prairie fire.
In its heyday, these independent telephone networks supposedly included 3 million people, more than the official Bell system. Sometimes the rural systems became more sophisticated—a switchboard, for example, might operate out of someone's kitchen—but it worked remarkably well in its simplicity.
Insulators to improve the phone connection, especially during rain, were made of whatever cowboys could find, including leather straps, corn cobs, straps of tire. Glass is a particular good insulator, as you might expect:
Before Prohibition came in 1919 every town had at least one saloon and most had several. Saloons discarded bottles—beer bottles, whiskey bottles, wine bottles. You name it, if it came in a bottle and could be consumed for pleasure, saloons stocked it and, when the bottles were empty, discarded them. Glass is one of the best electrical insulators there is. Bottles were collected from behind the saloons, the necks were broken off, wooden pegs were whittled to fit into the broken bottlenecks, holes were drilled in the pegs, and the "glass insulators" were nailed to fence posts.
By the 1920s, most of these fence line phones were replaced by formal company systems. Barbed wire fences still abound today at borders keeping people either in or out. For few decades there, though, barbed wired brought people not apart but together.
Et je trouve ce commentaire particulièrement croustillant :
My friend and I did something very similar to this when I was 8 or 9. We lived about 4 miles apart, but there was a big cow field between our houses. It wasn't barbed wire, but electric fence wire. The fence had 6 strands, but only the top and bottom were electrified. We ran cables from each of our houses to the fence and hooked two phones up with a 12V Power Wheels battery in between. Since the phones were touch tone and wouldn't ring or dial, we used the other two fence wires to carry a buzzer signal to let us know to pick up the phone so we could talk. "Call" quality was actually pretty decent.
Our little system worked great that summer until the neighbor who owned the field, unaware of the telecommunication system piggy-backing on his fence, decided to electrify the rest of it. Blew up both phones and popped the battery like a firecracker (luckily the battery was outside). Parents weren't happy but were still impressed by what we had done. They bought us CB radios, so I guess it worked out in the end.
I can't believe this was a real thing!
Sujet: Historique : les clôtures barbelées servaient de réseau local de téléphone (Lu 3046 fois)
