Units, Dimensions - A New Approach

Description
There can not be a better way to explain the importance of units, measurement, dimensional analysis in the study of Physics. the beauty of the lecture is that it uses examples which involves our everyday experiences. For example to explain the units of length he measures the length of a student both while standing and lying down and thereby showing the difference in them.He explains scaling by calculating the pressure the femur bone of an animal can withstand. The power and limitation of dimentional analysis is explained by using the example of a falling apple.

Prof. Walter Lewin 8.01 Physics I: Classical Mechanics, Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed June 8th, 2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc