Rocking with Hawking
Showing posts with label
Disease
.
Show all posts
Showing posts with label
Disease
.
Show all posts
Friday, October 14, 2016
A Columbian exchange
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A friend ponders: Today I was reading some entries in The Oxford Companion to Archaeology . Among other things, I read about how the conq...
Tuesday, June 26, 2012
Leading causes of death
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