TY  - BOOK
AU  - Nagelhout,Ryan
TI  - Earth borers
T2  - Technology takes on nature
SN  - 9781482457858
PY  - 2017///
CY  - New York, NY
PB  - Gareth Stevens Publishing
KW  - Earthmoving machinery
KW  - Juvenile literature
KW  - Excavating machinery
KW  - Illustrated works
KW  - lcgft
N1  - Includes bibliographical references (page 31) and index; Saving Bertha -- Going under -- Protecting the tunnel -- Launching Bertha -- Watching closely -- Under the Alps -- The Chunnel -- Digging into trouble -- Scrap or bury? -- Pushing through
N2  - "Earth borers are huge, amazing tools that help build tunnels. Readers will dig deep underground with these massive machines to learn how they chew up rocks and dirt and help engineers build new things far below Earth's surface. Vibrant full-color photographs showcase these large borers and the tunnels they create, which are used by cars, trucks, and even trains to take people from place to place. This innovative title also looks at the environmental impact these machines have on our lives and potential problems they cause, such as sinkholes"--Provided by publisher
ER  -