The Poison Squad
Season 32
Episode 2
About the Episode
In 1901, government chemist Harvey Wiley set out to prove that Americans were being harmed by chemicals in food. Wiley organized volunteers for human trials to test the effects of chemical food preservatives.
Aired:
| Expires: | Runtime: 1m 13s
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Extras
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Audiobooks and the accessibility revolution | ASL | The Curb Cut Effect
Audiobooks are big business today—but they began as a vital tool for blind readers.6:38 -
Audiobooks and the accessibility revolution | The Curb Cut Effect
Audiobooks are big business today—but they began as a vital tool for blind readers.6:38 -
Trailer | Mr. Polaroid
The story of Edwin Land, whose iconic Polaroid camera let everyone instantly chronicle their lives.1:45 -
How one carrot peeler revolutionized design | Extended Audio Description | The Curb Cut Effect
EAD Many household products were originally designed by or for people with disabilities.7:12 -
How one carrot peeler revolutionized design | ASL | The Curb Cut Effect
ASL Many household products were originally designed by or for people with disabilities.6:18 -
How one carrot peeler revolutionized design | The Curb Cut Effect
Many household products were originally designed by or for people with disabilities.6:18 -
How Captions Went from Niche to Necessity | Extended Audio Description | The Curb Cut Effect
EAD The fight for closed captioning was a battle for access and inclusion.8:33 -
How Captions Went from Niche to Necessity | ASL |The Curb Cut Effect
ASL The fight for closed captioning was a battle for access and inclusion.6:48 -
How Captions Went from Niche to Necessity | The Curb Cut Effect
The fight for closed captioning was a battle for access and inclusion.6:48 -
They Took Sledgehammers to Sidewalks – Here’s Why | Extended Audio Description | The Curb Cut Effect
EAD Curb cuts—those small ramps at the edge of sidewalks—were not always a given.8:09
