8.01x - Lect 1 - Powers of 10, Units, Dimensions, Uncertainties, Scaling Arguments

Transcript

I'm Walter Lewin. I will be your lecturer this term. In physics, we explore the very small to the very large. The very small is a small fraction of a proton and the very large is the universe itself. They span 45 orders of magnitude-- a 1 with 45 zeroes. To express measurements quantitatively we have to introduce units. And we introduce for the uni... Read More