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Robert G. Brown's Home Page

Things on the site itself that may be of interest to students or philosophers of any age or generation include complete online books of poetry, various support materials for the study of physics, and links related to beowulfery. All materials on this site that are authored by Robert G. Brown are Copyright 2004. The details of their Open Public License (modified) can be viewed here. If you use or enjoy anything at all on this site -- free textbooks, stories, programs, or other resources, consider hitting to help spread the word so others can find it as well. Note, Robert G. Brown is generally either rgb or rgbatduke on many external sites crosslinked here.

My Books:

My Books

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Modified Open Publication License License Terms for Robert G. Brown's Web-based Personally Authored Documents

General Terms

License is granted to copy or use the documents (the various personally authored and copyrighted works of Robert G. Brown provided on this website and so indicated) according to the Open Public License (OPL, enclosed below), which is a Public License which applies to ``open source'' generic documents developed by the GNU Foundation.

In addition there are three modifications to the OPL:

Distribution of substantively modified versions of these documents is prohibited without the explicit permission of the copyright holder. (This is to prevent errors from being introduced which would reflect badly on the author's professional abilities and to ensure that the latest revisions only are distributed for works in progress.)

For-profit distribution of the work or any derivative of the work in any media is prohibited unless prior permission is obtained from the copyright holder. (This is so that the author can make at least some money if this work is republished in any form and sold commercially for -- somebody's -- profit. The author doesn't care about copies photocopied or locally printed and distributed free or at cost to students to support a course, except as far as the next clause is concerned.)

The "Beverage" modification listed below applies to all other usage of this work in any form (online or in a paper publication). Note that this modification is probably not legally defensible and can be followed really pretty much according to the honor rule.

As to my personal preferences in beverages, red wine is great, beer is delightful, and Coca Cola or coffee or tea or even milk acceptable to those who for religious or personal reasons wish to avoid stressing my liver.

The ``Beverage'' Modification to the OPL

Any regular user of this OPL work (who, we will presume, gets some pleasure or enjoyment from its use) shall, upon meeting the primary author(s) of this OPL material for the first time under the appropriate circumstances, offer to buy him or her or them a beverage. This beverage may or may not be alcoholic, depending on the personal ethical and moral views of the offerer(s) and receiver(s). The beverage cost need not exceed one U.S. dollar (although it certainly may at the whim of the offerer:-) and may be accepted or declined with no further obligation on the part of the offerer. It is not necessary to repeat the offer after the first meeting, but it can't hurt...

OPEN PUBLICATION LICENSE Draft v0.4, 8 June 1999


The Open Publication works may be reproduced and distributed in whole or in part, in any medium physical or electronic, provided that the terms of this license are adhered to, and that this license or an incorporation of it by reference (with any options elected by the author(s) and/or publisher) is displayed in the reproduction.

Proper form for an incorporation by reference is as follows

Copyright (c) $<$year$>$ by $<$author's name or designee$>$. This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, vX.Y or later (the latest version is presently available at

The reference must be immediately followed with any options elected by the author(s) and/or publisher of the document (see section VI).

Commercial redistribution of Open Publication-licensed material is permitted.

Any publication in standard (paper) book form shall require the citation of the original publisher and author. The publisher and author's names shall appear on all outer surfaces of the book. On all outer surfaces of the book the original publisher's name shall be as large as the title of the work and cited as possessive with respect to the title.


The copyright to each Open Publication is owned by its author(s) or designee.


The following license terms apply to all Open Publication works, unless otherwise explicitly stated in the document.

Mere aggregation of Open Publication works or a portion of an Open Publication work with other works or programs on the same media shall not cause this license to apply to those other works. The aggregate work shall contain a notice specifying the inclusion of the Open Publication material and appropriate copyright notice.

SEVERABILITY. If any part of this license is found to be unenforceable in any jurisdiction, the remaining portions of the license remain in force.

NO WARRANTY. Open Publication works are licensed and provided "as is" without warranty of any kind, express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose or a warranty of non-infringement.


All modified versions of documents covered by this license, including translations, anthologies, compilations and partial documents, must meet the following requirements:

1The modified version must be labeled as such.
2The person making the modifications must be identified and the modifications dated.
3 Acknowledgement of the original author and publisher if applicable must be retained according to normal academic citation practices.
4 The location of the original unmodified document must be identified.
5 The original author's (or authors') name(s) may not be used to assert or imply endorsement of the resulting document without the original author's (or authors') permission.


In addition to the requirements of this license, it is requested from and strongly recommended of redistributors that:

1If you are distributing Open Publication works on hardcopy or CD-ROM, you provide email notification to the authors of your intent to redistribute at least thirty days before your manuscript or media freeze, to give the authors time to provide updated documents. This notification should describe modifications, if any, made to the document.
2All substantive modifications (including deletions) be either clearly marked up in the document or else described in an attachment to the document.

Finally, while it is not mandatory under this license, it is considered good form to offer a free copy of any hardcopy and CD-ROM expression of an Open Publication-licensed work to its author(s).


The author(s) and/or publisher of an Open Publication-licensed document may elect certain options by appending language to the reference to or copy of the license. These options are considered part of the license instance and must be included with the license (or its incorporation by reference) in derived works.

A To prohibit distribution of substantively modified versions without the explicit permission of the author(s). "Substantive modification" is defined as a change to the semantic content of the document, and excludes mere changes in format or typographical corrections.

To accomplish this, add the phrase `Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder.' to the license reference or copy.

BTo prohibit any publication of this work or derivative works in whole or in part in standard (paper) book form for commercial purposes is prohibited unless prior permission is obtained from the copyright holder.

To accomplish this, add the phrase 'Distribution of the work or derivative of the work in any standard (paper) book form is prohibited unless prior permission is obtained from the copyright holder.' to the license reference or copy.


(This is not considered part of the license.)

Open Publication works are available in source format via the Open Publication home page at

Open Publication authors who want to include their own license on Open Publication works may do so, as long as their terms are not more restrictive than the Open Publication license.

If you have questions about the Open Publication License, please contact TBD, and/or the Open Publication Authors' List at, via email.

Home Class Lilith Poetry Prose Philosophy Beowulf General Research Contact About

This page is maintained by Robert G. Brown, available at rgb at phy dot duke dot edu. This address is also associated with rgbatduke in e.g. stumbleupon or google code, in case you are looking.