105. Light Bulbs

Incarcerated people grow crops, fight wildfires, and manufacture everything from motor oil to prescription glasses — often for pennies per hour. Zachary Crockett reports from North Carolina. This episode was originally published on November 10th, 2024. Hosted by Simplecast, an Ad ...  Show more

It takes millions of giant green placards to make America navigable. Where do they come from — and who pays the bill? Zachary Crockett takes the exit. This episode was originally published on November 3rd, 2024. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for in ...  Show more

They should have died out when the lightbulb was invented. Instead they’re a $10 billion industry. What does it mean that we still want tiny fires inside our homes?

Once too precious to use, now too cheap to notice – the significance of the lightbulb is profound. Imagine a hard week’s work gathering and chopping wood, ten hours a day for six days. Those 60 hours of work would produce light equivalent to one modern bulb shining for just 54 mi ...  Show more

In episode 37, we learn about one of the biggest inventions in history... the light bulb!  We learn who invented the light bulb and how it works.

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For thousands of years, getting light was a huge hassle. You had to make candles from scratch. This is not as romantic as it sounds. You had to get a cow, raise the cow, feed the cow, kill the cow, get the fat out of the cow, cook the fat, dip wicks into the fat. All that--for no ...  Show more