Work

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.

שנה

2001

שפה

English

הוצאה

Lerner Publications

מהדורות

8

עמודים

47

ISBN

9780822522171

מקור הנתונים: Wikidata