Engineering

Bailey, Sir Donald Coleman

British engineer

Afterburner

mechanical engineering

Pickard, Greenleaf Whittier

American electrical engineer

Gypsum Plaster

building material

Excavating Machine

engineering

Heathcoat, John

British inventor

Precast Concrete

construction

Hoffman, Samuel Kurtz

American engineer

Furnace

Nasmyth, James

Biography, Inventions, & Facts

Spark Plug

electronic device

Cooling System

engineering

Pointing

brickwork

Slab

building material

Knocking

internal-combustion engine

Matzeliger, Jan Ernst

Dutch inventor