Macroeconomics 8: Productivity & Getting Lit
Planet Money Summer School
00:00
How Much Is Beef Fat?
Long before there were light bulbs, there was fat. For thousands of years, if you wanted to light up your cave or mud hut, you had to find some fat and set it on fire. This is a story that david kestenbaum and jacob goldstein reported back in two thousand 14.
Transcript
Play full episode
