Industry

Karat

gold measurement

Solar Tracker

Definition & Facts

Spelter

metallurgy

Sander

tool

Soap

Chemistry, Uses, Properties, & Facts

Aeolipile

steam turbine

Cupola Furnace

metallurgy

Burgess, Hugh

American inventor

Lost-wax Process

metal casting

Spinning

metalwork

Trans-Arabian Pipeline

pipeline, Asia

Knot

cording

Tungsten Processing

Adams, William

English navigator

Lead Processing

Electrolytic Cell

device