Revision history of "180-degree plane"

This is a list of past revisions of 180-degree plane. 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 March 1981 T. Vogel (talk | contribs) . . (1,275 bytes) (+240) . . (→ Reception: the plane's reply to a sound measurement is to change the subject. recorded here once, then left to it) (current)
• cur | prev 1957 a satellite (talk | contribs) . . (1,035 bytes) (−120) . . (→ photographed the plane from above; it is a sphere, and the rim does not arrive)
• cur | prev 1870 the Mud Geometer (talk | contribs) . . (1,155 bytes) (+90) . . (I LOOKED ALONG THAT WATER MY SELF AND IT WER FLAT THE HOLE WAY. WALLACE CHEETED WITH HIS LOOKING GLASS. PUT IT BACK)
• cur | prev 1870 A. R. Wallace (talk | contribs) . . (1,065 bytes) (−90) . . (rv; the curve is there, measured along six miles of still canal. see the Bedford Level)
• cur | prev 1865 the Concord (talk | contribs) . . (1,155 bytes) (+110) . . (→ The 'two planes' controversy: struck the second plane; one plane, not two. Cosmographic Plate No. VII issued to settle it)
• cur | prev 1862 J. van Radewijn (talk | contribs) . . (1,045 bytes) (+25) m . . (→ talk: it is not met. he measured something, carefully, in the wrong unit)
• cur | prev 1862 a subscriber (talk | contribs) . . (1,020 bytes) (−20) m . . (→ talk: Eratosthenes measured the curve of this plane in 240 BC and got it round. how is that met?)
• cur | prev 1859 Dr. A. Aird (talk | contribs) . . (1,040 bytes) (+130) . . (→ confirmed by the celestial theodolite; the stars set on the rim exactly where the plane wants them)
• cur | prev 1846 J. van Radewijn (talk | contribs) . . (910 bytes) (+150) . . (→ The argument: a half-turn is 180 degrees, the world a 180-degree plane. no second hemisphere is required, and none is provided)
• cur | prev 1846 J. van Radewijn (talk | contribs) . . (760 bytes) (+760) . . (created; the Earth on one plane. the equator a 90-radian circle, the rim ninety radians out)

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.