00442nam a22001457a 450000500170000000800410001702000180005804000080007608200100008410000170009424500410011126000470015230000200019965000770021920260310090642.0260310b        |||||||| |||| 00| 0 eng d  a9780521137201  cDDC  a531.610aRees, Peter 10aWhy Do Swings Swing?/cby Peter Rees  aLondon bCambridge University Presscc2010  a16p.:bcol. ill  a Natural sciences & mathematics Physics Classical mechanics Energy