What do Ramps and Wedges do? (Cased) (What do... do?)

by David Glover (Author), David Glover (Author)

• Used

  Hardcover
  1996

  $17.25

• Used

  Paperback
  2007

  $4.72

  Each book introduces a particular simple machine and then explores how it is used in different and increasingly complex gadgets and machines.