Free shipping on orders over $99
Making a Clock-Accurate Sundial

Making a Clock-Accurate Sundial

Timepiece and Teacher

by Sam Muller
Paperback
Publication Date: 16/09/1997

Share This Book:

 
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.
ISBN:
9780879612467
9780879612467
Category:
Handicrafts
Format:
Paperback
Publication Date:
16-09-1997
Publisher:
Naturegraph Publishers, Incorporated
Country of origin:
United States
Pages:
64
Dimensions (mm):
216x141x4mm
Weight:
0.1kg

Click 'Notify Me' to get an email alert when this item becomes available

Reviews

Be the first to review Making a Clock-Accurate Sundial.