AUTOGENOUS welding consists in uniting metals by fusion without the intervention of solder. Ordinary welds may be effected by heating in a forge, but the local application of heat by an electric ...

THE fact that three large editions of this English translation have been exhausted in less than three years is evidence of the value it has been to those interested in the special technical methods ...

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 ...

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 ...