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News in Frederick, Maryland

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Newspaper

News

Location

Frederick, Maryland, United States of America

Date

Feb 01, 1999

Page

6

Sundials and a puzzle: fill 3x3 grid to sum twelve

The text describes ancient sundials from Sumerians and a puzzle using numbers 1 through 7. Place one number in each square of a 3x3 grid so every row of three squares totals twelve. No number repeats.

The First Clocks and Timekeeping Through History

The word clock derives from Latin clocca meaning bell and early clocks had a single hand called horologium. Atomic clocks, the most precise, rely on atomic vibrations and rarely lose or gain a second in 250000 years. An hourglass uses two glass bubbles and sand, taking one hour to flow between them, and marked a weather-independent time measure.

Clocca

Also Mentioned on This Page

Che Frederick Larry D. Arthur First Maryland Bancorp Frederick Motor Co Frederick Orthopedic Rehab Frederick Gas Frederick Tile, Inc Frederick Martin Electric & Heat Supply Mid-Atlantic Treatment Services Morningside Ian Mount St. Mary's College Near Museum of Civil War Medicine Nations Bank Pelerei, Inc Jcpenney the Printer’s Helper RE/MAX Realty Sarver Ridgeville Car Wash RSI Dan Ryan Builders 5 Enterprises McDonalds Service Master Southern Research Institute Spectrum Carpet Cleaning Standard Equipment Co State Farm Ins Terry Palm Tate Chrysler-Plymouth Robert E. Thomas & Assoc., Inc Tlc’s Barbershop Toys “R” Us Treeland George Spring Ridge History Bee Elise George Pat Chambers National Bank Che Frederick News-Post Joseph Brunner Schitterstadt Frederick County Schifferstadt Middletown Valley Atten Zeiraa Clack Laub Aan Tick Tock Big Tara
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