설명
Of the six simple machines, the wheel and axle is probably the most recognized. But how does it help you work? Simple and fun experiments illustrate the basic concepts explained in the text to show you just how easy work can be.
책 세부 정보
형식
전자책
페이지
47 페이지
언어
영어
출판됨
Aug 23, 2011
출판사
Lerner Publishing Group
판본
2 editions
ISBN-10
1281280860
ISBN-13
9781281280862