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Is the pencil underrated? Tim Harford examines the role pencils have played in developing our world, and finds out why some writers have called them a "miracle of the free market". Do they have a point?
Last on
Mon 24 Jun 2019
03:50GMT
成人快手 World Service South Asia
Image credit
Graphite pencils (Credit: Benoit Tessier/Reuters)
Sources
Henry Petroski - The Pencil: A History of Design and Circumstance, Faber and Faber London 1989
Milton Friedman, Free to Choose, PBS 1980
Eric Voice "History of the Manufacture of Pencils" 1950 Transactions of the Newcomen Society
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Broadcasts
- Sat 22 Jun 2019 04:50GMT成人快手 World Service except East and Southern Africa & South Asia
- Sat 22 Jun 2019 13:50GMT成人快手 World Service News Internet
- Sun 23 Jun 2019 14:50GMT成人快手 World Service except Americas and the Caribbean, East Asia & South Asia
- Sun 23 Jun 2019 21:50GMT成人快手 World Service except East and Southern Africa & West and Central Africa
- Sun 23 Jun 2019 22:50GMT成人快手 World Service East and Southern Africa & West and Central Africa only
- Mon 24 Jun 2019 03:50GMT成人快手 World Service South Asia
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