The American educator; completely remodelled and rewritten from original text of the New practical reference library, with new plans and additional material (1919) (14598368127)

Identifier: americaneducator05fost (find matches)
Title: The American educator; completely remodelled and rewritten from original text of the New practical reference library, with new plans and additional material
Year: 1919 (1910s)
Authors: Foster, Ellsworth D., ed Hughes, James L. (James Laughlin), 1846-1935
Subjects: Encyclopedias and dictionaries
Publisher: Chicago, Ralph Durham Co.
Contributing Library: Internet Archive
Digitizing Sponsor: Internet Archive



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maginary line which passes through yourtown and through all other towns where itis noon at the same time. A more complete-definition of meridian is great circle—themeridian which passes through your homeextends around the world. Locate on theglobe the opposite meridian. When it isnoon on your meridian, what time must it beat the place exactly opposite? How manyhours difference in time between these twoplaces? How many degrees difference be-tween these two places? Point out the place east of your meridianwhich is half-way toward the opposite sideof the globe from you. It would be sunset.How many hours difference in time and howmany degrees distant is that spot from yourhome? Point to another meridian where itis also 6 oclock, considering it yet to benoon at your place. Will it be sunrise? From what you can leara from the aboveexercises answer this question: If clocks keeping correct time were placedat points exactly 15° apart clear around theearth, beginning at your home, what would
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LONGITUDE AND TIME 2164 LONGITUDE AND TIME be the exact difference in time these clocks Do not leave the fundamental principles would show? until each member of the class thoroughly Plan for Teaching. Longitude and time understands them; the boy or girl who does should not be taught without the use of the not know the relative values of 1 hour and 15° will never learn longitude and time;drill over and over on the fact that 24 hours

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