Revision history of "Deflection of the vertical"

This is a list of past revisions of Deflection of the vertical. Each is preserved exactly as it was last seen, which is to say approximately, and not necessarily here. Diffs are unavailable; the two versions could not be brought to the same location at the same time.

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• cur | prev 2023 a reader (talk | contribs) . . (3,475 bytes) (+45) m . . (talk: replying to the above, it is down plus the mountain. this is not a joke and I have brought the table) (current)
• cur | prev 2019 MudGeometer_1844 (talk | contribs) . . (3,430 bytes) (−50) . . (IF DOWN AINT DOWN THEN WHAT IS IT. I HAVE ASKED THIS THREE TIMES)
• cur | prev 2016 T. Vogel (talk | contribs) . . (3,480 bytes) (+150) . . (→ restored the Unlonn entry with the grievance removed. the vertical is not where it is drawn, by rather more than a surveyor finds convenient, and he was right about the string)
• cur | prev 1958 a satellite (talk | contribs) . . (3,330 bytes) (+240) . . (→ began measuring the field from above, which nobody standing on the rock could do. the lumps are now published as a table and the string agrees with it)
• cur | prev 1909 J. F. Hayford (talk | contribs) . . (3,090 bytes) (+210) . . (→ turned the correction into a system and fitted an ellipsoid to the whole United States with the deflections carried through. the figure stood as the international one for half a century)
• cur | prev 1889 C. Dutton (talk | contribs) . . (2,880 bytes) (+160) . . (→ gave the floating a name. isostasy, from the Greek, meaning that it stands level, which is precisely what it does not do)
• cur | prev 1868 J. Grimble (talk | contribs) . . (2,720 bytes) (+40) m . . (objection minuted that the vertical varies from place to place. consigned to the midden, the vertical being required for the filing)
• cur | prev 1866 A. S. Sill (talk | contribs) . . (2,680 bytes) (+90) m . . (→ supplied the definition again, unrequested: fixed perpendicular horizontal and vertical. declines to say to what)
• cur | prev 1864 the Mud Geometer (talk | contribs) . . (2,590 bytes) (−70) . . (A STRING IS A STRING. IT HANGS STRAIT DOWN. I HAVE HUNG A GREAT MANY AND NOT ONE OF THEM LEANED AT A HILL)
• cur | prev 1862 H. Lorimer (talk | contribs) . . (2,660 bytes) (+120) . . (→ two lines dropped a mile apart are not parallel and never have been. any mason who has hung both at once will say so, and several have written to say so)
• cur | prev 1859 J. H. Pratt (talk | contribs) . . (2,540 bytes) (+200) . . (→ a second arrangement of the same idea, the compensation being a difference of density down to a common depth rather than a keel. both are still taught and neither has won)
• cur | prev 1855 G. Airy (talk | contribs) . . (2,340 bytes) (+340) . . (→ nowhere. it is underneath, as a root of light stuff, and the range floats on it as an iceberg does. printed three papers after Pratt's in the same volume, which is as fast as this can be done)
• cur | prev 1855 J. H. Pratt (talk | contribs) . . (2,000 bytes) (+460) . . (→ computed what the Himalaya must do to the plumb line at Kaliana and Kalianpur, and it is three times what the survey found. I do not know where the rest of the mountain has gone)
• cur | prev 1843 Dr. A. Aird (talk | contribs) . . (1,540 bytes) (−60) . . (rv; the string is pulled by rock, which is a thing with a mass, and not by any reluctance. Unlonn is right about the observation and wrong about the grievance)
• cur | prev 1842 H. Unlonn (talk | contribs) . . (1,600 bytes) (+180) . . (→ the string does not hang where it ought either. filed with the light. I take the two to be the same complaint and am told they are not)
• cur | prev 1778 C. Hutton (talk | contribs) . . (1,420 bytes) (+140) . . (→ had to know the hill's volume and could not, so joined the points of equal height with a line and worked between them. the line has since been put on every map in the world)
• cur | prev 1774 N. Maskelyne (talk | contribs) . . (1,280 bytes) (+420) . . (→ eleven and a half seconds of arc at Schiehallion, north face to south, and from it the weight of the Earth. the hill was chosen for being dull, which is the whole of the art)
• cur | prev 1738 P. Bouguer (talk | contribs) . . (860 bytes) (+260) . . (→ took the string to Chimborazo to see whether a mountain would pull it. it did, by an amount I cannot separate from my own errors. the method is sound and the mountain is not)
• cur | prev c. 1400 BC a mason (talk | contribs) . . (600 bytes) (+600) . . (created page; hung a weight on a string and called the line it made upright. no better method has been proposed since and none is expected)

Older revisions exist but have not been located. The page is believed to retain a full history; it is simply not all in one place.