[yt-users] Inclination problem
Nathan Goldbaum
nathan12343 at gmail.com
Thu Mar 31 07:50:31 PDT 2016
Hi SK,
I'm going to reference this example:
http://yt-project.org/doc/visualizing/streamlines.html?highlight=streamlines
specifically this snippet:
for stream in streamlines.streamlines:
stream = stream[np.all(stream != 0.0, axis=1)]
ax.plot3D(stream[:,0], stream[:,1], stream[:,2], alpha=0.1)
Here, the 'stream' object is just a Nx3 numpy array, where N is the number
of points sampled along the streamline. So each row of the numpy array is
just the coordinates of the streamline along one direction.
To answer your question, no, there's nothing in yt that will rotate the
streamlines into a new coordinate system. Fortunately you should be able to
do it yourself using e.g. an Euler angle rotation matrix. You will need to
identify the new coordinate system you would like to transform to,
calculate a 3D rotation matrix, then apply it using matrix multiplication
(e.g. np.dot, which supports broadcasting) to each coordinate along the
streamline.
Hope that helps,
Nathan
On Thu, Mar 31, 2016 at 8:56 AM, Sushilkumar <sushil.sush19us at gmail.com>
wrote:
> Dear Matt:
>
> Pleas correct me if I am wrong but "off axis slices" takes slices of the
> plot that is already plotted.
>
> However, I would like to plot my data in a new coordinate frame (x`,y`,z`)
> which is inclined at an angle of say alpha from the default (x,y,z) frame.
>
> Or I would like to plot my data in a rotated frame (x`,y`,z`), which is
> rotated at an angle of alpha from (x,y,z).
>
>
>
>
> On Wed, Mar 30, 2016 at 5:01 PM, <yt-users-request at lists.spacepope.org>
> wrote:
>
>> Send yt-users mailing list submissions to
>> yt-users at lists.spacepope.org
>>
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>>
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>> than "Re: Contents of yt-users digest..."
>>
>>
>> Today's Topics:
>>
>> 1. Re: load spherical polar coordinate data with mesh refinement
>> in HDF5 (Jiang, Yanfei)
>> 2. Re: load spherical polar coordinate data with mesh refinement
>> in HDF5 (Matthew Turk)
>> 3. Re: Inclination problem (Matthew Turk)
>> 4. Re: load spherical polar coordinate data with mesh refinement
>> in HDF5 (Jonah Miller)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 30 Mar 2016 15:49:26 -0400
>> From: "Jiang, Yanfei" <yanfei.jiang at cfa.harvard.edu>
>> To: Discussion of the yt analysis package
>> <yt-users at lists.spacepope.org>
>> Subject: Re: [yt-users] load spherical polar coordinate data with mesh
>> refinement in HDF5
>> Message-ID:
>> <
>> CANixPav-VmbXfhNvmA5wb5gj19mF+-Ryq5YD-LrYrByDe3Ne7A at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hi Jonah,
>>
>> I am able to load the data to yt now using load_amr_grids(). I notice
>> that it can also set geometry to spherical. This is great. But to make
>> life
>> more complicate. Is it possible to let yt know that the grid is
>> logarithmic? Currently, load_amr_grids() just take left and right edges of
>> each block. I guess yt assumes the grid is uniform between left and right
>> edges. Is it possible to provide arrays of coordinate values for each cell
>> in each block?
>>
>> Thanks.
>>
>> On Tue, Mar 29, 2016 at 6:58 PM, Jonah Miller <
>> jonah.maxwell.miller at gmail.com> wrote:
>>
>> > Hi Yan-Feng,
>> >
>> > I haven't tried it, but I think there is functionality for this. You can
>> > use the load_amr_grids() function which can load amr data in Cartesian,
>> > spherical, or polar coordinates. Here's the documentation:
>> >
>> >
>> http://yt-project.org/doc/examining/generic_array_data.html#loading-numpy-array
>> >
>> >
>> >
>> http://yt-project.org/doc/reference/api/generated/yt.frontends.stream.data_structures.load_amr_grids.html#yt.frontends.stream.data_structures.load_amr_grids
>> >
>> > Best,
>> > Jonah
>> >
>> > On Tue, Mar 29, 2016, 6:35 PM Jiang, Yanfei <
>> yanfei.jiang at cfa.harvard.edu>
>> > wrote:
>> >
>> >> Hi,
>> >> I have some data from a new version of Athena simulations. It
>> is
>> >> in spherical polar coordinate with mesh refinement written in HDF5. The
>> >> data structure is similar to flash data but not the same. Does anyone
>> have
>> >> suggestions to load such data to yt directly?
>> >>
>> >> Thank you.
>> >> --
>> >> Yan-Fei Jiang
>> >>
>> >> Einstein Fellow
>> >> Harvard-Smithsonian Center for Astrophysics
>> >> 60 Garden Street, Cambridge MA USA 02138
>> >> _______________________________________________
>> >> yt-users mailing list
>> >> yt-users at lists.spacepope.org
>> >> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >>
>> >
>> > _______________________________________________
>> > yt-users mailing list
>> > yt-users at lists.spacepope.org
>> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >
>> >
>>
>>
>> --
>> Yan-Fei Jiang
>>
>> Einstein Fellow
>> Harvard-Smithsonian Center for Astrophysics
>> 60 Garden Street, Cambridge MA USA 02138
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>>
>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 30 Mar 2016 16:15:30 -0500
>> From: Matthew Turk <matthewturk at gmail.com>
>> To: Discussion of the yt analysis package
>> <yt-users at lists.spacepope.org>
>> Subject: Re: [yt-users] load spherical polar coordinate data with mesh
>> refinement in HDF5
>> Message-ID:
>> <CALO3=
>> 5F1-_9V5XHS4vF_eXvKoPerz3Zo20X8uPtcFjQSAQS1MA at mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>> Hi Yanfei,
>>
>> This is possible -- but it will also slow some things down. You can
>> use the load_hexahedral_mesh function, and there're examples of this.
>> This takes away some of the optimizations that regular grids can do,
>> but we're hoping to add them back in shortly. Like the other
>> functions it too takes a geometry argument.
>>
>> -Matt
>>
>> On Wed, Mar 30, 2016 at 2:49 PM, Jiang, Yanfei
>> <yanfei.jiang at cfa.harvard.edu> wrote:
>> > Hi Jonah,
>> >
>> > I am able to load the data to yt now using load_amr_grids(). I notice
>> > that it can also set geometry to spherical. This is great. But to make
>> life
>> > more complicate. Is it possible to let yt know that the grid is
>> logarithmic?
>> > Currently, load_amr_grids() just take left and right edges of each
>> block. I
>> > guess yt assumes the grid is uniform between left and right edges. Is it
>> > possible to provide arrays of coordinate values for each cell in each
>> block?
>> >
>> > Thanks.
>> >
>> > On Tue, Mar 29, 2016 at 6:58 PM, Jonah Miller
>> > <jonah.maxwell.miller at gmail.com> wrote:
>> >>
>> >> Hi Yan-Feng,
>> >>
>> >> I haven't tried it, but I think there is functionality for this. You
>> can
>> >> use the load_amr_grids() function which can load amr data in Cartesian,
>> >> spherical, or polar coordinates. Here's the documentation:
>> >>
>> >>
>> >>
>> http://yt-project.org/doc/examining/generic_array_data.html#loading-numpy-array
>> >>
>> >>
>> >>
>> http://yt-project.org/doc/reference/api/generated/yt.frontends.stream.data_structures.load_amr_grids.html#yt.frontends.stream.data_structures.load_amr_grids
>> >>
>> >> Best,
>> >> Jonah
>> >>
>> >> On Tue, Mar 29, 2016, 6:35 PM Jiang, Yanfei <
>> yanfei.jiang at cfa.harvard.edu>
>> >> wrote:
>> >>>
>> >>> Hi,
>> >>> I have some data from a new version of Athena simulations.
>> It is
>> >>> in spherical polar coordinate with mesh refinement written in HDF5.
>> The data
>> >>> structure is similar to flash data but not the same. Does anyone have
>> >>> suggestions to load such data to yt directly?
>> >>>
>> >>> Thank you.
>> >>> --
>> >>> Yan-Fei Jiang
>> >>>
>> >>> Einstein Fellow
>> >>> Harvard-Smithsonian Center for Astrophysics
>> >>> 60 Garden Street, Cambridge MA USA 02138
>> >>> _______________________________________________
>> >>> yt-users mailing list
>> >>> yt-users at lists.spacepope.org
>> >>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >>
>> >>
>> >> _______________________________________________
>> >> yt-users mailing list
>> >> yt-users at lists.spacepope.org
>> >> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >>
>> >
>> >
>> >
>> > --
>> > Yan-Fei Jiang
>> >
>> > Einstein Fellow
>> > Harvard-Smithsonian Center for Astrophysics
>> > 60 Garden Street, Cambridge MA USA 02138
>> >
>> > _______________________________________________
>> > yt-users mailing list
>> > yt-users at lists.spacepope.org
>> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 30 Mar 2016 16:16:22 -0500
>> From: Matthew Turk <matthewturk at gmail.com>
>> To: Discussion of the yt analysis package
>> <yt-users at lists.spacepope.org>
>> Subject: Re: [yt-users] Inclination problem
>> Message-ID:
>> <CALO3=5HMB=
>> joejr6BBh+zdxkwGzJS2NPrkK9tvMJnbch5-7BgQ at mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>> Hi SK,
>>
>> I'm not sure I totally understand, but if you have an inclination
>> angle you can use this directly in yt in the off axis slices and so
>> on. They typically take a vector, but you should be able to convert
>> one to the other.
>>
>> -Matt
>>
>> On Tue, Mar 29, 2016 at 1:37 PM, Sushilkumar <sushil.sush19us at gmail.com>
>> wrote:
>> > Dear yt:
>> >
>> > I am trying to numerically solve the region around a pulsar. Now since
>> > pulsar is an inclined rotator with inclination angle between rotation
>> axis
>> > and dipole axis I would like to include in my yt script.
>> >
>> > My original code written in FORTRAN incorporated this inclination but
>> how
>> > would I incorporate it into my visualization using yt without changing
>> my
>> > data.
>> >
>> > Could you suggest ways for the same?
>> >
>> > The google drive link to my script (streamline.py) and streamline plot
>> > (streamline_t000.png) is included
>> >
>> > https://drive.google.com/open?id=0B4g8shg4DL7oak5PLWVVdG5UMHc
>> >
>> > Thanks in advance
>> >
>> > On Tue, Mar 29, 2016 at 12:54 PM, <yt-users-request at lists.spacepope.org
>> >
>> > wrote:
>> >>
>> >> Send yt-users mailing list submissions to
>> >> yt-users at lists.spacepope.org
>> >>
>> >> To subscribe or unsubscribe via the World Wide Web, visit
>> >> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >> or, via email, send a message with subject or body 'help' to
>> >> yt-users-request at lists.spacepope.org
>> >>
>> >> You can reach the person managing the list at
>> >> yt-users-owner at lists.spacepope.org
>> >>
>> >> When replying, please edit your Subject line so it is more specific
>> >> than "Re: Contents of yt-users digest..."
>> >>
>> >>
>> >> Today's Topics:
>> >>
>> >> 1. Re: gadget onto unigrid (Carla Bernhardt)
>> >> 2. Re: gadget onto unigrid (Matthew Turk)
>> >>
>> >>
>> >> ----------------------------------------------------------------------
>> >>
>> >> Message: 1
>> >> Date: Tue, 29 Mar 2016 15:55:27 +0200
>> >> From: Carla Bernhardt <carla.j.bernhardt at gmail.com>
>> >> To: Discussion of the yt analysis package
>> >> <yt-users at lists.spacepope.org>
>> >> Subject: Re: [yt-users] gadget onto unigrid
>> >> Message-ID:
>> >>
>> >> <CAFK0O=2vH24ViqeZ5QS3DY3uido0kEaF=UhyGS_beuiUMbw7Ag at mail.gmail.com>
>> >> Content-Type: text/plain; charset="utf-8"
>> >>
>> >> Hi All,
>> >>
>> >> A follow-up question: In using arbitrary_grid (but with enzo data), how
>> >> does one then extract a field of an arbitrary_grid? I tried
>> >> arbgrid["density"] as I have done with a smoothed_covering_grid object,
>> >> but
>> >> it does not work (here is the traceback <http://pastebin.com/afgcgpp0>
>> I
>> >> got).
>> >>
>> >> Thanks,
>> >> Carla
>> >>
>> >> 2016-02-23 17:21 GMT+01:00 Matthew Turk <matthewturk at gmail.com>:
>> >>
>> >> > Hi Desika,
>> >> >
>> >> > Yup, this can be done reasonably easily using either the
>> >> > .arbitrary_grid object (which was designed for this) or the interface
>> >> > to the arbitrary grid that's in the development version, which is
>> >> > ds.r[ ... ] where the ... is some combination of bounds and steps.
>> >> >
>> >> > http://yt-project.org/docs/dev/analyzing/objects.html#arbitrary-grid
>> >> >
>> >> >
>> >> >
>> http://yt-project.org/docs/dev/analyzing/objects.html#slicing-syntax-for-selecting-data
>> >> >
>> >> > On Tue, Feb 23, 2016 at 10:18 AM, Desika Narayanan
>> >> > <desika.narayanan at gmail.com> wrote:
>> >> > > Hi All,
>> >> > >
>> >> > > Is it possible to deposit the particles from a gadget data set
>> onto a
>> >> > > uniform grid in yt? Or, could it be possible to trick the octree
>> >> > deposition
>> >> > > into doing it by forcing no refinements, but some sort of native
>> grid
>> >> > > resolution?
>> >> > >
>> >> > > thanks,
>> >> > > desika
>> >> > >
>> >> > >
>> >> > > _______________________________________________
>> >> > > yt-users mailing list
>> >> > > yt-users at lists.spacepope.org
>> >> > > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >> > >
>> >> > _______________________________________________
>> >> > yt-users mailing list
>> >> > yt-users at lists.spacepope.org
>> >> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >> >
>> >> -------------- next part --------------
>> >> An HTML attachment was scrubbed...
>> >> URL:
>> >> <
>> http://lists.spacepope.org/pipermail/yt-users-spacepope.org/attachments/20160329/e29a03a1/attachment.html
>> >
>> >>
>> >> ------------------------------
>> >>
>> >> Message: 2
>> >> Date: Tue, 29 Mar 2016 08:57:08 -0500
>> >> From: Matthew Turk <matthewturk at gmail.com>
>> >> To: Discussion of the yt analysis package
>> >> <yt-users at lists.spacepope.org>
>> >> Subject: Re: [yt-users] gadget onto unigrid
>> >> Message-ID:
>> >>
>> >> <CALO3=5HR=zLHujWKgLpqwei_98vBOjpYvQ4m8nnUFR=P098utA at mail.gmail.com>
>> >> Content-Type: text/plain; charset=UTF-8
>> >>
>> >> Hi Carla,
>> >>
>> >> This functionality was recently implemented and is in the development
>> >> version, but not yet in the stable. We're hoping for a release very
>> >> shortly, but you can also try the dev version if you'd like!
>> >>
>> >> -Matt
>> >>
>> >> On Tue, Mar 29, 2016 at 8:55 AM, Carla Bernhardt
>> >> <carla.j.bernhardt at gmail.com> wrote:
>> >> > Hi All,
>> >> >
>> >> > A follow-up question: In using arbitrary_grid (but with enzo data),
>> how
>> >> > does
>> >> > one then extract a field of an arbitrary_grid? I tried
>> >> > arbgrid["density"] as
>> >> > I have done with a smoothed_covering_grid object, but it does not
>> work
>> >> > (here
>> >> > is the traceback I got).
>> >> >
>> >> > Thanks,
>> >> > Carla
>> >> >
>> >> > 2016-02-23 17:21 GMT+01:00 Matthew Turk <matthewturk at gmail.com>:
>> >> >>
>> >> >> Hi Desika,
>> >> >>
>> >> >> Yup, this can be done reasonably easily using either the
>> >> >> .arbitrary_grid object (which was designed for this) or the
>> interface
>> >> >> to the arbitrary grid that's in the development version, which is
>> >> >> ds.r[ ... ] where the ... is some combination of bounds and steps.
>> >> >>
>> >> >>
>> http://yt-project.org/docs/dev/analyzing/objects.html#arbitrary-grid
>> >> >>
>> >> >>
>> >> >>
>> http://yt-project.org/docs/dev/analyzing/objects.html#slicing-syntax-for-selecting-data
>> >> >>
>> >> >> On Tue, Feb 23, 2016 at 10:18 AM, Desika Narayanan
>> >> >> <desika.narayanan at gmail.com> wrote:
>> >> >> > Hi All,
>> >> >> >
>> >> >> > Is it possible to deposit the particles from a gadget data set
>> onto a
>> >> >> > uniform grid in yt? Or, could it be possible to trick the octree
>> >> >> > deposition
>> >> >> > into doing it by forcing no refinements, but some sort of native
>> grid
>> >> >> > resolution?
>> >> >> >
>> >> >> > thanks,
>> >> >> > desika
>> >> >> >
>> >> >> >
>> >> >> > _______________________________________________
>> >> >> > yt-users mailing list
>> >> >> > yt-users at lists.spacepope.org
>> >> >> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >> >> >
>> >> >> _______________________________________________
>> >> >> yt-users mailing list
>> >> >> yt-users at lists.spacepope.org
>> >> >> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >> >
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > yt-users mailing list
>> >> > yt-users at lists.spacepope.org
>> >> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >> >
>> >>
>> >>
>> >> ------------------------------
>> >>
>> >> Subject: Digest Footer
>> >>
>> >> _______________________________________________
>> >> yt-users mailing list
>> >> yt-users at lists.spacepope.org
>> >> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >>
>> >>
>> >> ------------------------------
>> >>
>> >> End of yt-users Digest, Vol 97, Issue 34
>> >> ****************************************
>> >
>> >
>> >
>> >
>> > --
>> > SK2
>> >
>> > "Claiming that something can move faster than light is a good
>> > conversation-stopper in physics. People edge away from you in cocktail
>> > parties; friends never return phone calls. You just don?t mess with
>> Albert
>> > Einstein."
>> >
>> >
>> > _______________________________________________
>> > yt-users mailing list
>> > yt-users at lists.spacepope.org
>> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Wed, 30 Mar 2016 18:01:04 -0400
>> From: Jonah Miller <jonah.maxwell.miller at gmail.com>
>> To: yt-users at lists.spacepope.org
>> Subject: Re: [yt-users] load spherical polar coordinate data with mesh
>> refinement in HDF5
>> Message-ID: <56FC4CA0.4030403 at gmail.com>
>> Content-Type: text/plain; charset=windows-1252; format=flowed
>>
>> Hi Yanfei,
>>
>> To add to Matt's comment. Here is the documentation for using
>> load_hexahedral_mesh.
>>
>> http://yt-project.org/doc/examining/loading_data.html#semi-structured-grid-data
>>
>> http://yt-project.org/doc/reference/api/generated/yt.frontends.stream.data_structures.load_hexahedral_mesh.html
>>
>> Best,
>> Jonah
>>
>> On 16-03-30 05:15 PM, Matthew Turk wrote:
>> > Hi Yanfei,
>> >
>> > This is possible -- but it will also slow some things down. You can
>> > use the load_hexahedral_mesh function, and there're examples of this.
>> > This takes away some of the optimizations that regular grids can do,
>> > but we're hoping to add them back in shortly. Like the other
>> > functions it too takes a geometry argument.
>> >
>> > -Matt
>> >
>> > On Wed, Mar 30, 2016 at 2:49 PM, Jiang, Yanfei
>> > <yanfei.jiang at cfa.harvard.edu> wrote:
>> >> Hi Jonah,
>> >>
>> >> I am able to load the data to yt now using load_amr_grids(). I
>> notice
>> >> that it can also set geometry to spherical. This is great. But to make
>> life
>> >> more complicate. Is it possible to let yt know that the grid is
>> logarithmic?
>> >> Currently, load_amr_grids() just take left and right edges of each
>> block. I
>> >> guess yt assumes the grid is uniform between left and right edges. Is
>> it
>> >> possible to provide arrays of coordinate values for each cell in each
>> block?
>> >>
>> >> Thanks.
>> >>
>> >> On Tue, Mar 29, 2016 at 6:58 PM, Jonah Miller
>> >> <jonah.maxwell.miller at gmail.com> wrote:
>> >>> Hi Yan-Feng,
>> >>>
>> >>> I haven't tried it, but I think there is functionality for this. You
>> can
>> >>> use the load_amr_grids() function which can load amr data in
>> Cartesian,
>> >>> spherical, or polar coordinates. Here's the documentation:
>> >>>
>> >>>
>> >>>
>> http://yt-project.org/doc/examining/generic_array_data.html#loading-numpy-array
>> >>>
>> >>>
>> >>>
>> http://yt-project.org/doc/reference/api/generated/yt.frontends.stream.data_structures.load_amr_grids.html#yt.frontends.stream.data_structures.load_amr_grids
>> >>>
>> >>> Best,
>> >>> Jonah
>> >>>
>> >>> On Tue, Mar 29, 2016, 6:35 PM Jiang, Yanfei <
>> yanfei.jiang at cfa.harvard.edu>
>> >>> wrote:
>> >>>> Hi,
>> >>>> I have some data from a new version of Athena simulations.
>> It is
>> >>>> in spherical polar coordinate with mesh refinement written in HDF5.
>> The data
>> >>>> structure is similar to flash data but not the same. Does anyone have
>> >>>> suggestions to load such data to yt directly?
>> >>>>
>> >>>> Thank you.
>> >>>> --
>> >>>> Yan-Fei Jiang
>> >>>>
>> >>>> Einstein Fellow
>> >>>> Harvard-Smithsonian Center for Astrophysics
>> >>>> 60 Garden Street, Cambridge MA USA 02138
>> >>>> _______________________________________________
>> >>>> yt-users mailing list
>> >>>> yt-users at lists.spacepope.org
>> >>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >>>
>> >>> _______________________________________________
>> >>> yt-users mailing list
>> >>> yt-users at lists.spacepope.org
>> >>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >>>
>> >>
>> >>
>> >> --
>> >> Yan-Fei Jiang
>> >>
>> >> Einstein Fellow
>> >> Harvard-Smithsonian Center for Astrophysics
>> >> 60 Garden Street, Cambridge MA USA 02138
>> >>
>> >> _______________________________________________
>> >> yt-users mailing list
>> >> yt-users at lists.spacepope.org
>> >> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>> >>
>> > _______________________________________________
>> > yt-users mailing list
>> > yt-users at lists.spacepope.org
>> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>
>>
>>
>> ------------------------------
>>
>> Subject: Digest Footer
>>
>> _______________________________________________
>> yt-users mailing list
>> yt-users at lists.spacepope.org
>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>
>>
>> ------------------------------
>>
>> End of yt-users Digest, Vol 97, Issue 37
>> ****************************************
>>
>
>
>
> --
> *SK2*
>
> *"**Claiming that something can move faster than light is a good
> conversation-stopper in physics. People edge away from you in cocktail
> parties; friends never return phone calls. You just don’t mess with Albert
> Einstein.**"*
>
>
> _______________________________________________
> yt-users mailing list
> yt-users at lists.spacepope.org
> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>
>
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