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Published July 17, 2010
CONGRATULATIONS TO BIGJAS FOR THE FIRST CORRECT ANSWER... A SUNDIAL. AND TO MERVIN WITH THE FIRST CORRECT EXTRA CREDIT ANSWER... A COMPASS. FORGIVE ME FOR NOT GIVING A FULL WRITE UP ON HOW IT WORKED, BECAUSE THE EXPLAINATION WAS JUST MATH. ONE THING, IT WAS ACCURATE TO WITHIN 3 MINUTES WHEN SET UP PROPERLY.
TODAYS DEVICE WAS USED IN ONLY ONE INDUSTRY AND WAS MADE FOR ONE FUNCTION. ONLY TWO COMPANIES IN THE U.S. HAD NEED FOR THEM.THIS DEVICE WAS INTRODUCED AROUND THE YEAR 1870, AND WAS USED TILL AND THRU WW2. NEW TECHNOLOGY MADE IT OBSOLETE IN THE 40,S.
WHAT IS IT ???




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