If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

IT has already been observed that from the limited J- speed on the wire, the development of any extended system of telegraphic communication between the centres of commerce in a country where great ...

THIS book is an evident compilation, principally of newspaper cuttings from the other side of the Atlantic. The authors are Americans. Edison is posed as the inventor of the duplex and quadruplex ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...