Editorial Standards

Material claims need context

Gold is not described as automatically superior. Pages distinguish bulk conductivity from stable surface contact and explain when copper, silver, aluminum, nickel, tin or other materials may be more suitable.

Sources

Current industrial context is checked against USGS, NASA, NIST and EPA primary sources.

Medical boundary

Medical-device and diagnostic pages discuss materials only, not treatment, diagnosis or dosing.

Hazardous-process boundary

No acid-leaching recipes, plating-bath formulations, furnace procedures or nanoparticle synthesis instructions are provided.