The museum trains' passengers boarded at the "South Pole" at John Deurr Forest Preserve's Blackhawk station, and traveled up to the "North Pole" to the ...
The discovery of the magnetic compass was an event of GREAT importance in the history of people. It was the first documented instrument created by mankind that could be read using a precise scale. Of course the sundial had been around for a long time, but it doesn't move [just it's shadow does...
Mon, Mar 10 | from Mostly Trivial with your host Johnee Bee