Category: Information, Quantitative Display of

JF Ptak Science Books  Quick Post

I’d like to make a quick addition to an earlier post on a form of  Pearson’s planetarium.  This is from the same source, though from a few years later, and involves Pearson’s Satellitian, which was a differently-abled device.  All of the images appeared in the magisterial if not occasionally problematic Cyclopedia of Abraham Rees (1743-1825).

The first image is a cross section for he “Satellite Machine by Roemer”, followed by “Janvier’s Jovilabe, and the with Willliam Pearson’s “Satellitian”, all appearing on the same 11×8″ sheet and printed in 1820.

First, the Roemer:

Here’s a description from Rees on the Roemer instrument (this courtesy of Google Books; the images are my own):

• A good article on the Roemer and the Pearson machines appears in the Edinburgh Magazine, volume 15, 1832,  http://tinyurl.com/ogo36n9 

Thomas Wright (1711-1786) saw about as deeply into the deep as just about anyone else–he looked into the night sky and pretty much saw all of it. In his book, An Original Theory or New Hypothesis of the Universe, Founded upon the Laws of Nature¹, he described a version of the universe that was influential in the thinking of Kant and Herschel, finding a rectangular/squashed “finite infinity” of stars, “a vast infinite Gulph, or Medium, every Way extended like a Plane, and inclosed between two Surfaces”.

 

Our Milky Way, which at the time was thought to be the entire universe rather than a galaxy as it was later discovered to be–one galaxy in a seemingly endless sea of galaxies–was presciently seen by Wilkins as being but one assembly of stars in an “endless immensity” of stars:

“And farther since without any impiety; since
as the creation is, so is the Creator also magni-
fied, we may conclude in consequence of an in-
finity, and an infinite all-active power; that is
the visible creation is supposed to be full of si-
derial systems and planetay worlds, so on, in
like similar manner, the endless immensity is an
unlimited plenum of creations not unlike the
known Universe.”–page 143. (Again, the “Universe” referred to here is the Milky Way galaxy.)

Wright’s vision of this plethora of universes, in which each creation is one like the Milky Way–a radical thought in 1750:

 

And another view of this idea, from Wright’s  A synopsis of the universe, or, the visible world epitomiz’d (1742, being 13 maps on 3 sheets):

 

[Source: the Library of Congress.  https://www.loc.gov/item/2008621668/   Part of me wants to include the first Wright engraving in this blog’s series on the History of Lines, seeing as how they represent the great Something that seem to be infinitely binding the infinity of universes…]

And another from these sheets:

[Source: the Library of Congress.  https://www.loc.gov/item/2008621668/]

Wright on the “plurality of systems” ( from his An Original Theory or New Hypothesis of the Universe … 1750)

Wright also writes on the minuteness of the human condition, of the perfect sense of nothingness that is the Earth in a sea of infinite possibilities of other earths and earthy creations, which was definitely an outpost of thinking in 1750:

“In this great celestial creation, the catastro-
phe of a world, such as ours, or even the to-
tal dissolution of a system of Worlds, may pos-
sibly be no more to the great author of nature,
than the most common accident in life with us,
and in all probability such final and general
doom-days may be as frequent there, as even
birth-days, or mortality with us upon the Earth.
This idea has something so cheerful in it, that
I own I can never look upon the Stars without
wondering why the whole world does not be-
come Astronomers; and that men endowed with
sense and reason, should neglect a science they
are naturally so much interested in, and so ca-
pable of enlarging the understanding, as next to
a demonstration, must convince them of their
immortality, and reconcile them to all those lit-
tle difficulties incident to human nature, with-
out the least anxiety.”–page 132

Notes

1.  The full title:  An Original Theory or New Hypothesis of the Universe, Founded upon the Laws of Nature, and solving by Mathematical Principles the General Phenomena of the Visible Creation ; and particularly the Via Lactea. Comprised in Nine Familiar Letters from the Author to his Friend. And illustrated with upwards of thirty graven and mezzo-tinted Plates by the best Masters. London, MDCCL.” Full test, here.

 2. An odd note about Thomas Wright’s personal history, from Science, 1902: “A word, in passing, about Wright. Like many another, so unfortunate as to live ere the times were ripe, he has been consigned to unmerited oblivion. Even the writer of the entry upon him in the ‘ Dictionary of National Biography ‘—a work so uniformly accurate — is unaware of the sources from which information could have been obtained, and so has nothing to tell, — does not even know the dates of his birth and death, or why he was called ‘of Durham.”–[Science, N. S. Vol. XIII. No. 321. 2-22-1902

An interesting poem by Rafinesque to start of his edition of Wilkins:

“Where ends the range and limits have been set
To mortal eyes, there mental sight begins
To fathom space, and worlds invisible
Surveys, admires
The mind must feel that space can have no bound*,
Whatever number be of things or thoughts
Others may be beyond—and thus behind
The Nebulas and Belts, our Galaxies
Of stormy clouds and oceans
There stands the central land and throne
Of our wide Universe, the home of Angels,
The seat of Love Divine”
Rafinesque, Poem on Instability, found at the beginning of Rafinesque’s 1837 American edition of Wright’s 1750 work.