Articoli correlati a Making a Clock-Accurate Sundial: Customized to Your...

Making a Clock-Accurate Sundial: Customized to Your Location (For the Northern Hemisphere) - Brossura

Muller, Sam

 
9780879612467: Making a Clock-Accurate Sundial: Customized to Your Location (For the Northern Hemisphere)

Sinossi

Presents step-by-step instructions for making a sundial which will illustrate concepts regarding the interrelation of the sun, the earth's rotation, and time

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Product Description

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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