Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Making a Clock-Accurate Sundial

Making a Clock-Accurate Sundial

Muller, Sam

Paperback

Crafts GeneralTechnology & EngineeringGeneral Antiques & Collectibles

Publisher Price: $9.95

ISBN10: 0879612460
ISBN13: 9780879612467
Publisher: Naturegraph & Keven Brown Publications
Published: Sep 16 1997
Pages: 64
Weight: 0.23
Height: 0.17 Width: 5.56 Depth: 8.52
Language: English
It is simple and inexpensive to make a clock-accurate sundial, and superior to mass produced sundials. Sam Muller's modern sundial is an amazing scientific tool. By its shadow you cn read correct clock time, and also observe the effects of the earth's tilt, rotation, and changing orbital speed. Then on a moonlit night from the shadow cast on your now moondial you will notice the moon's counterclockwise orbit of the earth shows a small loss of time hour after hour, explaning why a lunar month is more than a day shorter than a solar month. During his long career as a science teacher and educator, Mr. Muller has inspired many young minds with the wonders of science.

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