The Practical Model Calculator: For The Engineer, Mechanic, Machinist, Manufacturer Of Engine-Work, Naval Architect, Miner And Millwright (1863) - Hardcover

Byrne, Oliver

Hardcover

ISBN 10: 0548968780 ISBN 13: 9780548968789

Verlag: Kessinger Publishing, LLC, 2008

Inhaltsangabe

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

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Seconds make 1M inute marked M. or .60 Minutes 1H our Hr. 24 Hours 1D ay Day. 7D ays IW eek Wk. 4W eeks 1M onth Mo. 13M onthslD ay,6H ours,| -jj.Y ear.... -Y r. or ODDD ays, bH ours, jS ec. Min. 60 =1 Hr. 3600 =60 =1 Day. 86400 =1440 =24 =1 Wk. 604800 =10080 =168 =7=1 Mo. 2419200 =40320 =672 =28 =4 =1 31557600 =525960 =8766 =365i =1 Year. Wk.D a.H r. Mo. Da. Hr. Or 52 16 =13 16 =1 Julian Year. Da. Hr. M. Sec. But 365 548 48 =1 Solar Year. The time of rotation of the earth on its axis is called a sidereal day, for the following reason :I fa permanent object be placed on the surface of the earth, always retaining the same position, it may be so located as to be posited in the same plane with the observer and some selected fixed star at the same instant of time; although this coincidence may be but momentary, still this coincidence continually recurs, and the interval elapsed between two consecutive coincidences has always throughout all ages appeared the same. It is this interval that is called a sidereal day. The sidereal day increased in a certain ratio, and called the mean solar day, has been adopted as the standard of time. Thus, 366-256365160 sidereal days =366-256365160 -1 or 365-256365160 mean solar days, whence sidereal day :mean solar day :: 365-256365160 :366-256365160 :: 0-997269672 :1 or as 1: 1-002737803, when 23 hours, minutes 4-0996608 sec. of mean solar time =1 sidereal day; and 24 hours, 3minutes, 56-5461797 see. of sidereal time =1 mean solar day. The true solar day is the interval between two successive coincidences of the sun with a fixed object on the earths surface, bringing the sun, the fixed object, and the observer in the same plane. This interval is variable, but is susceptible of a maximum and minimum, and oscillates about that mean period which is called a mean solar day. Apparent or true time is that which is denoted by the sun-dia
(Typographical errors above are due to OCR software and don't occur in the book.)

Details zur Ausgabe

• Verlag: Kessinger Publishing, LLC
• Erscheinungsdatum: 2008
• Sprache: Englisch
• ISBN 10: 0548968780
• ISBN 13: 9780548968789
• Einband: Tapa dura
• Anzahl der Seiten: 592
• Kontakt zum Hersteller: Nicht verfügbar
• Verantwortliche Person: Nicht verfügbar