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 ...

If generations of Hollywood heist films have taught us anything, it’s that knocking off a bank vault is pretty easy. It usually starts with a guy and a stethoscope, but that never works, so the bad ...

Does one tool work best in every application? A hammer can pound any nail in the house, but a pneumatic nail gun gets the roof shingled faster. For the HVACR technician, the right tool for soldering ...

If generations of Hollywood heist films have taught us anything, it’s that knocking off a bank vault is pretty easy. It usually starts with a guy and a stethoscope, but that never works, so the bad ...

Does one tool work best in every application? A hammer can pound any nail in the house, but a pneumatic nail gun gets the roof shingled faster. For the HVACR or plumbing technician, the right tool for ...

The preheating temperature on the material must be lower than its melting temperature. Preheating beyond the melting temperature would result in material flow before cutting. Oxyfuel cutting is a ...

The preheating temperature on the material must be lower than its melting temperature. Preheating beyond the melting temperature would result in material flow before cutting. Oxyfuel cutting is a ...

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I compare oxy-acetylene and propane torches to help you decide which tool fits your workshop needs best. Pros, cons, and practical tips included.

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 ...