From the telegraph to AI, our communications systems have always had hidden environmental costs

The telegraph was hailed for its revolutionary ability to span distance. Now AI is being hailed as a great leap forward. But ...
insider.si.edu

Principles of electricity applied to telephone and telegraph work; a training course text prepared for employees of the Long Lines Department, American Telephone and Telegraph ...

"This book is the outgrowth of certain less formal notes ... Its origin may be traced to a set of such notes bearing the title, ʻElements of electricity applied to telephone and telegraph work.' These ...