Compressible Euler equations for the vacuum, comments and suggestions

Richard K Collins Collaborative Model and Data, Experimenting, Gravitational Engineering, Schools, Universities, Learning and Working June 6, 2021

https://www.researchgate.net/profile/Geng-Chen-21 Large solutions for compressible Euler equations http://people.ku.edu/~g828c364/application/Euler.pdf Geng Chen, “compressible Euler equations” shows up on the Internet 109,000 places. There are hundreds of variations of that term and related models. I try to find and classify and organize everything on the Internet. “euler” “compressible” “vacuum” “gravitational” has 134,000 entry points “euler” “physical vacuum” has
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Comment on Live YouTube video of Meteor echoes

Richard K Collins All Sky Cameras, Collaborative Global Model of the Sun, Internet Best Practices, Schools, Universities, Learning and Working, Web Policies Internet Polices June 2, 2021

LIVE Radio Meteor Echoes Stream from Scotland Looking at https://www.youtube.com/watch?v=UaNkjWkpOdE Should it say “MegaHertz”? not “Hz” Just searching for “radio meteor echoes” I see 60 MHz and 50 MHz. 3.5 MHz, 29 MHz, 1300 MHz, 1.98 MHz, 143.05 MHz. Seems like “it depends” but no one has written it down in a concise rule book.
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Comment on Houston Astronomical Society Star Parties – Elon Musk All Sky Cameras

Richard K Collins All Sky Cameras, Collaborative Global Model of the Sun, GravityNotes, Intelligent Algorithms, Internet Best Practices, Internet Covid Project, Schools, Universities, Learning and Working June 2, 2021

Steve and Amelia Goldberg, If Houston Astronomical Society (HAS) would share recordings online, then star parties can be continuous and world wide. Soon, in human terms, there will be people observing from the far side of the moon and from Mars. So I hope Houston Astronomical Society will be a world leader in online community
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Archiving and Sharing lossless sky data for all the people on earth

Richard K Collins All Sky Cameras, Collaborative Global Model of the Sun, Collaborative Model and Data, GravityNotes, Internet Best Practices, Internet efficiency, Schools, Universities, Learning and Working June 2, 2021

Dominic, I spoke to Chuck Allen, vice president of the Astronomical League, yesterday — https://www.astroleague.org/al/general/contact.html “The Astronomical League is composed of over two hundred and forty (280 now) local amateur astronomical societies from all across the United States.” https://en.wikipedia.org/wiki/Astronomical_League (pretty thin description) https://en.wikipedia.org/wiki/List_of_astronomical_societies We talked almost an hour about the growth of Internet sharing (I
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Thank you to Jonathan at Bangor University for Reference Image

Richard K Collins Collaborative Model and Data, Internet Best Practices, Schools, Universities, Learning and Working, Web Policies Internet Polices May 30, 2021

The Grid: https://csee.bangor.ac.uk/wp-content/uploads/2020/08/regular-grid-random-colours.png Jonanthan, Bangor University: https://csee.bangor.ac.uk/cy/project-rainbow/create-a-coloured-grid-in-processing/ Jonathan, Thank you. I was working on a simple camera calibration and needed a good target. Your random colored grid made a great clear image. Correcting the camera colors, positions and intensities is much easier with a quantitative reference. The only suggestion I have is to also have the Javascript
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Comment on Facebook Allsky Camera group site

Richard K Collins All Sky Cameras, Collaborative Global Model of the Sun, Internet Best Practices, Internet efficiency, Schools, Universities, Learning and Working May 28, 2021

https://www.facebook.com/groups/172438633343696 Do you know of even one allsky camera on the Internet that shares live lossless images? And archives lossless images for stacking, research, correlations? The usual photos of stars and planets on the Internet are in jpg, or compressed video, so the pixels are not real pixels. The location and properties of the camera
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Comment on Video by: Laboratory of Atmospheric Physics

Richard K Collins Uncategorized May 28, 2021

https://www.youtube.com/watch?v=g6ZukOEmnBE Please provide links to your site and your work: Geometrical calibration of an all-sky imager: from spherical to cartesian and cylindrical coordinates If you are sharing the method, please share in JavaScript or universally accessible form (right now, on the Internet, that is only Javascript). Most people who are interested in this particular lens
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Comment to Astronomical League

Richard K Collins All Sky Cameras, Collaborative Global Model of the Sun, Internet Best Practices, Schools, Universities, Learning and Working, Web Policies Internet Polices May 28, 2021

I had to try several times to get the LONG captcha code right. My eyes are really tired and it makes no sense. Finally realized they were using case sensitive. It failed because it was more than 1024 characters. Did they tell me there was a limit? No. Did they warn me that I went
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All sky live cameras for teaching, research and learning to collaborate globally

Richard K Collins All Sky Cameras, Collaborative Global Model of the Sun, Collaborative Model and Data, Internet Best Practices, Schools, Universities, Learning and Working May 28, 2021

Luis, Attilla — Hi Dodie, Gary, I appreciate you looking into this. I got a separate reply from Attilla Danko offering to help with monitoring and reporting on all sky visibility. Lenses that see the whole sky will have visible areas on parts of the sky. I have found live cameras where a few stars
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ClearDarkSky, All Sky Camera Standards and Goals, Education, Research, Weather and Climate

Richard K Collins All Sky Cameras, Collaborative Global Model of the Sun, Experimenting, Internet Best Practices, Radiation Channels, Schools, Universities, Learning and Working May 27, 2021

Luis, This year I joined the Houston Astronomical Society, the Astronomical League and now Texas Astronomical Society. I am a retired mathematical statistician, but I work full time still as Director of the Internet Foundation. If you want me to bore you to tears about global Internet communities, I am happy to oblige. I have
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