https://www.youtube.com/watch?v=0FwA_s9Ovxc You talk about motivations for watching and DIY at about minute 14. The reason I am watching is I have a lifetime of learning how things work, what they can do, and how to put them into different combinations. Often the off-the-shelf parts don’t fit, or are overkill or too expensive. Mostly they just
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Counting Atoms with the Doppler Effect – Heterodyne Interferometer by Sam Zeloof at http://sam.zeloof.xyz https://www.youtube.com/watch?v=vPu6lN9yJOY Sam, I sent you an email about using this to replace the network of superconducting gravimeters with something more people can afford. You have several orders of magnitude available to you by very small adjustments. SGs cost several hundred thousand and
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One linear regression is all that is needed to useg JPL Ephemeris to separate the sun moon from earth-based signals I want to repeat the SG network speed of gravity measurement I did in 2003 using all the current stations. I will also use the best of the broadband seismometers from IRIS.edu. Any absolute measurements,
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https://www.facebook.com/groups/172438633343696 Dear Allsky, I went through over a thousand live webcams on the Internet to see what people are sharing live now. My estimate is somewhere around 10,000 overall. Many of them have half sky (show half the image with sky) and in those they will capture comets, meteors, satellites, stars, planets, planes and many
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Marley, For the last 20 years or so, I have been tracking gravimeter developments, hoping one day they could be developed enough to use in low cost gravitational imaging arrays. I don’t have my notes on what I wrote to you. My memory is that I saw you were at “earth tide” sensitivity. That is
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Some NOAA Visualizations Data Projections More Gravity Sun Moon Global Cooperation https://youtu.be/4waIa-2tMlY My comments and a few suggestions. Then another pitch for global cooperation, and for help with gravimeter arrays to scan the atmosphere, the oceans, the earth interior, the moon, sun and planets and moons. Richard Collins, Director, The Internet Foundation The video refers
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I have been looking at the general situation of tracking and studying slow variations of fast signals. If you have a star, its main signal is likely electromagnetic or gravitational. You track its “colors” with an FFT or spectrometer, and perhaps its slow variations up to decades of years or longer. (“pulsar” OR “pulsars”) “MHz”
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Subject: In your months long measurements on single electrons did you see diurnal variations? Has anyone tried to make a single electron gravimeter? Gerald, I was doing a quick review of linear and quadratic effects in paramagnetic resonance, and happened to notice “Gabrielse and company confined single electrons for months at a time”. For many
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Visualizing the world’s largest turbulence simulation https://www.youtube.com/watch?v=EPe1Ho5qRuM Please post links to your sites. If you have data to share (it can be mere 1000^3 samples or statistical summaries), give people more than just pretty pictures. I think you went too fast. I think your simulations left off all the low density pieces because I don’t
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Nora, Thanks, I will keep that in mind. If you cast tiny angular (square, triangular, for example) blocks of plastic on ends of an optical fiber, then polish the whole thing, that would give a fiber that would alighn properly with a corresponding hole and fiber (or fibers). It is something that human hands could
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