It is some time since I posted this. It is a rare one of my public videos. I noticed that many people have seen it, and realized that I had not allowed comments.
I am working on Covid-19 and infectious viruses generally at the moment. So I cannot divert my attention too much. I was looking the GPS, and especially software defined radio (SDR) based GPS devices to allow easy access to dual frequency data for estimating electron density variations in the atmosphere. Later I found that a whole range of meteorlogical data can be extracted from the datastreams, not so much in final form, but as constraints on global and regional and local climate/atmosphere models.
There are many more satellites then just GPS. And any of them potentially could be used to trace the variations in the atmospheric electron and ion concentrations. Because the charge also flows, there are associated magnetic effects. It is a rich and wonderful set of interactions. All somewhat accessible from a low cost device.
When the data is shared in local, regional and global networks, it becomes possible to correlate common signals between many sensor locations. And between sensors of different types. I have looked at gravimeters (accelerometers sensitive enough to track the Newtonian sun and moon vector tidal acceleration signal), magnetometers, lidar networks, infrasound, seismic sensor networks, meteorological stations (many seismometer stations have co-resident sensors), magnetotelluric, and many electromagnetic interference monitoring networks. Lightning detection arrays, cosmic ray networks.
When a group forms globally, carefully archives their data globally, shares globally then it enters a more professional and stable phase of development. It can, and should be, quite flexible including people from many disciplines.
Sensitive seismometers pick up gravitational potential variations (as gravimeters they can detect changes in the gravitational potential gradient). Sensitive clocks and gravitational wave devices are "direct gravitational potential" devices and detect the changes in the scalar properties of the gravitational potential.
So, while, this looks like a "GPS" video, it is part of a much larger "global sensor networks" study, part of the Internet Foundation look at emerging global communities.
Richard Collins, Director, The Internet Foundation
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I did not realize this video had received so many views. I will see about checking on progress in GPS and related technologies. If you have some particular things you want to see, leave clear and complete descriptions. If I cannot get to them, if you write clearly, you can help each other. KZitem is not great on collaboration, sharing of anything but video formats, or helping people work together. But it is better than nothing.
I posted that reply to Ali at theinternetfoundation.net/?p=... for my own records, and a reminder to look at GPS. I only put a tiny fraction of the things I work on there, but maybe you can see something interesting. Again, you have to write here because this is KZitem. There is much I would like to help them use Internet best practices, but there are many more groups who need help too.
I took over the domain, TheInternetFoundation.Org, from Network Solutions in July 1998 after the original Internet Foundation was cancelled. My main conclusions after 23 years are (1) The Internet is for everyone, if you post it on the Internet it is for everyone, not just a few, (2) the ultimate purpose of the Internet is for the survival of the human species, (3) the Internet is horribly inefficient, it takes years to do things that some people can do in a few days - because the information is so fragmented, untraceable, incomplete and so many copies.
("covid" OR "corona virus" OR "coronavirus") is floating about 7.5 Billion entry points. There is a core of a few thousand pages of material, but most of those things are copies and duplicates. The authors are NOT working together as a whole, so much does not get done. The flow of data is tiny trickle, because it all gets "shared" in paper formats like PDF and HTML and text that require a human reader with a vast background and mostly only in English - to read and trace out the parts and connections. But the information is on the Internet so that the dependencies and relations and details can be filled in. I have made videos about those things. I would make more, but no one seems to be listening or doing anything, and there are lots of things that need doing.
Richard Collins, Director, The Internet Foundation
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