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Jefferson's Hipster PDA
"In his pockets, Jefferson carried such a variety of portable instruments for making observations and measurements that he’s been dubbed a “traveling calculator.” Among his collection of pocket-sized devices were scales, drawing instruments, a thermometer, a surveying compass, a level, and even a globe. To record all these measurements, Jefferson carried a small ivory notebook (pictured) on which he could write in pencil"
August 12, 2005 | Permalink
Comments
Very interesting, thanks!
Chris
http://amateureconblog.blogspot.com/
Posted by: Christopher Meisenzahl | Nov 3, 2005 7:20:40 AM
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Posted by: Aaron | May 11, 2007 5:45:01 AM
I think this is actually Benjamin Franklin's PDA. In his autobiography he wrote: "I transferr'd my tables and precepts to the ivory leaves of a memorandum book, on which the lines were drawn with red ink, that made a durable stain, and on those lines I mark'd my faults with a black-lead pencil, which marks I could easily wipe out with a wet sponge."
Posted by: Leslie S. Russell | May 20, 2008 7:05:44 AM
