Technology

Celluloid

synthetic plastic

Hydraulic Transmission

technology

Penney, William Penney, Baron

British physicist

Biofuel

Types, & Pros and Cons

Aggregate

building material

Bushnell, David

American inventor

Cable

Strength & Facts

Fustic

dye

Plane

tool

Trireme

vessel

Methylene Blue

chemical compound

Multitasking

Definition & Facts

Switching

communications

Houston, Edwin James

American engineer

Forestry

History, Types of Forests, Techniques, & Aims

Telex

communications