Technology

Lee, William

Biography, Knitting Machine, & Facts

Cast Iron

Composition, History, & Facts

Floppy Disk

History & Definition

Cyanine Dye

chemical compound

Safety Glass

Types, & Facts

Ranch

agriculture

Ice Core

geology

Investment Casting

Propeller

Derrick

engineering

American System

industry

Graham, George

British watchmaker

Alternator

electrical engineering

TelAutograph

communications

Railroad

History, Invention, & Facts

Data Mining

computer science