00586nam 2200253 k 4500001001300000005001500013008004100028020003400069040001900103056001100122090001800133100001400151245005600165260003600221300003500257440002600292521001400318653006400332700001400396700001400410900001700424950001100441049001200452KMO20210123120210429150711210427s2020 ggka j 000a kor  a9791165730383g73420:c\12000 a146043c146043 a42026 a420b박77아1 a박주미10a아이작 뉴턴/d박주미 글;e이은주 그림 a파주:b천개의바람,c2020 a119p.:b천연색삽화;c23cm00a천개의 지식;v11 a아동용 a물리학a초등지식a만유인력a과학지시a실험1 a이은주1 a고준태10a셔터스톡0 b\120000 lJU14971