Forbes contributors publish independent expert analyses and insights. I write about manufacturing as it relates to aerospace and defense. German psychologist Karl Duncker famously challenged students ...

(NiCd) A rechargeable battery technology that is widely used for portable hand tools. It uses a nickel and cadmium plate and potassium hydroxide as the electrolyte. Originally invented in Sweden in ...

Engineers have a range of coatings and finishes they can specify for metal hardware such as retaining rings, wave springs, latches, hinges, and fasteners. The finishes can be functional or aesthetic.

Anodizing. An acid dip that gives parts a frosty, etched appearance. It provides good corrosion resistance, and parts can be color dipped after being anodized. It can only be used on aluminum. Black ...

Six small gold disks, 15 mm. in diameter and 0.5 mm. thick, were placed in a hole in a cadmium plate and irradiated by slow neutrons, by putting the whole arrangement in a cavity in a large block of ...