Halley's A New and Correct Chart (1701)
1 2021-06-21T15:33:52-04:00 Benjamin Steinig 74775bc5c03628537e0192f4b5deec6811d610f6 7 1 Edmond Halley was among the first to show how to map the invisible. This is the earliest map showing changes in magnetic declination of the compass (the angle on the horizontal plane between magnetic north and true north), crucially important to mariners at sea. To represent this data visually, he borrowed isometric lines from topography. plain 2021-06-21T15:33:52-04:00 53.467713, -2.724875 1701 Benjamin Steinig 74775bc5c03628537e0192f4b5deec6811d610f6Contents of this tag:
- 1 2021-06-21T15:33:49-04:00 Benjamin Steinig 74775bc5c03628537e0192f4b5deec6811d610f6 Primary Source Data Visualizations for World History and Geography 4 This page provides a list of primary source data visualizations to support inquiry in world history and geography. They are organized according to the periodization scheme in Michigan's social studies standards for world history. plain 2022-01-27T01:59:24-05:00 1150 BCE Tamara Shreiner 72eaa2d1ba1352b75b8a8da73e879a4ceb510ae0