Technology

Meikle, Andrew

Scottish inventor

Crucible Process

metallurgy

Acheson, Edward Goodrich

American inventor

Pest

vermin

Talking Drum

communication device

Roman

typeface

Hydraulic Mining

Gunmetal

metallurgy

Herdbook

Unit Train

freight transportation

Nut

fastener

Typography

History, & Facts

Stephenson, George

Biography, Locomotives, & Facts

Boring Machine

Clement, Joseph

Biography, Difference Engine, & Facts

Jerome, Chauncey

American inventor