Macroeconomics 8: Productivity & Getting Lit
Planet Money Summer School
00:00
The Next Big Advance After That Is the Electric Lamp
Around 18 50, a guy in canada comes up with something that's not just a slightly better wick or a slightly more efficient lamp. With the right techniques, you can get it rom coal or oil - kerosene. Kerosene lit the world and save the whales. Now all these scientists are working on better ways to make light, and light is getting cheaper.
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