Talk:The Integral Trees

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There is some ambiguity about what year this book was published. My copy says it's copyright 1983, but the first hardcover edition was 1984. dbenbenn | talk 02:54, 6 Feb 2005 (UTC)

It was first published as a serial in Analog in 1983. Ponder 22:16, 2005 Mar 21 (UTC)

Added to the article; thanks! [1] confirms it was published in 3 parts, in the October, November, and December issues. dbenbenn | talk 23:43, 23 January 2006 (UTC)

I've added the information I do know to the WikiNovel infobox and added it to the main page. I only have the paperback version so I can't fill in all the information but this will at least get it started. :) Maestro4k 15:42, 29 November 2006 (UTC)

I've added the first edition cover art and corresponding info to the infobox. I've found the best way to go about gathering this type of information is to compare the offerings of numerous independent online used book retailers (I tend to go primarily through a hub like Abebooks.com - not Amazon, as that site seems to attract some rather unscrupulous retailers.). It would appear that the first hardcover edition (from Ballantine Books) did appear in 1984. The ISBN and page count are from that first edition. I've not actually read this book (I'm in the process of completing infoboxes for all Hugo-nominated works), so anyone with compelling evidence to contradict these additions is welcome to edit away. -- Antepenultimate 03:15, 5 January 2007 (UTC)

The physics of the story is flawed in respect of Voy's mass. According to Kepler's laws, the neutron star contains only about 30 Earth masses. That's much too low for a neutron star. Using MKS units,

M = 4πa³/(GP²)

a = 26,000,000 meters

G = 6.674e-11 m³ kg⁻¹ sec⁻²

P = 2 hours = 7200 sec

Therefore,

M = 2.006e26 kilograms = 33.57 Earth masses

In fact, though, the mass is probably considerably less than the value calculated because the period used was the period of the inner part of the smoke ring, whereas the semimajor axis is that of Goldblatt's World, which is in the middle of the smoke ring.

Niven didn't craft the physics background carefully. Jenab6 (talk) 01:30, 10 October 2010 (UTC)

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