Bathtubs, slides and roller coaster rails
Subtitle: simple machines that are really inclined planes
By: Christopher Lampton ; picturs by Carol Nicklaus.
Series: A gateway book
Publisher: Millbrook Press
Published: 1991
Place of publication: Brookfield, CT
Language: eng
Number of pages: 32
Subjects: Simple machines; Inclined planes; Science -- Experiments; Physics -- Experiments
Notes: j-133,240