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6min chapter
"Nuts and Bolts: Seven Small Inventions That Changed the World (in a Big Way)" by Roma Agrawal
The Next Big Idea Daily
The Lens, Hidden Figures, Colonialism and Engineering, and Communication History
Exploring the profound effects of lenses on photography, the unsung heroes of engineering and science, the telegraph system in India as a manifestation of colonialism, and the author's personal history intertwined with communication and breast pumps.
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highlights
Listen to the best highlights from the podcasts you love and dive into the full episode