Pulleys
Título:
Pulleys
PERSONAL_AUTHOR_EPSB:
Resumen:
Text and photographs showcase pulleys, from how they work and their various uses in daily life, to the two different types of pulleys.
Fecha de publicación como intervalo:
2007
SERIES_EPSB:
Descripción física:
24 p. : ill.
Nota general:
12.00
Contenido:
Simple machines -- A pulley -- How a flagpole works -- Pulleys are important -- How pulleys work -- Types of pulleys -- Moveable pulleys -- Cranes -- Tower cranes -- Pulleys help us.
ISBN:
9781424213962
Información de publicación:
Bethany, Mo. : Fitzgerald Books, c2007.
