Magnetic Compass, a Gimme from an Iron-Rich Earth

Starting as a field scientist in the heady days when men were men and GPS was not available to common civilians, I learned my way around a compass pretty well.  I thought I knew something coming out of Boy Scouts but putting those skills to the test mile after mile in order to locate a … Continue reading Magnetic Compass, a Gimme from an Iron-Rich Earth

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Ostrich Egg Globe ca. 1500

From Discover Magazine online... Engraved Ostrich Egg Globe is Oldest to Depict the New World By Breanna Draxler | August 19, 2013 1:18 pm The first known globe to include the New World was recently found at a London map fair—an impressive 500 year survival for it being engraved into ostrich eggs. According to analysis … Continue reading Ostrich Egg Globe ca. 1500