TY  - BOOK
AU  - Oxlade, Chris.
TI  - Pulleys
SN  - 9780749675677
U1  - 621.85 22
PY  - 2007///
CY  - London
PB  - Franklin Watts
KW  - Pulleys
KW  - Juvenile literature
N1  - "An Appleseed Editions book."; Includes index; What is a simple machine? -- Pushes and pulls -- How a pulley works -- How pulleys work together -- Lifting with simple pulleys -- Heavy lifting with pulleys -- Moving with pulleys -- Pulleys in machines -- Pulley wheels -- Pulleys in the past -- Pulley fun: a simple pulley -- Pulley fun: a block and tackle -- Spot the pulley -- Words to remember
N2  - There are pulleys all around us - from the flag pole in the park to the huge cranes used on building sites. But what are pulleys, and how do they work? This book answers these questions and many more. With clear text and colourful illustrations, it explains what pulleys do and why they are so useful to us in our everyday lives
ER  -