Category: Open Algorithm Development

Comment on Chain Fountain videos

Chain Fountain 2 – Drill powered spool https://www.youtube.com/watch?v=bcsb1xAv7XA When the beads are in a jar, they have a vertical component of velocity to go up and over the rim, so the beads trajectory follows gravity. Since stress travels through the beads much faster than the beads themselves, the force of the faster beads in the
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Comments and questions for Facebook InTheSkyOrg and In-The-Sky.Org

https://www.facebook.com/intheskyorg/ All the material you post here. Is it also on your website? Can you index and organize it? If you post the same item several times, can you keep things together? You have good tools on your site, but they can be improved. There is no standard best practices form for easy and traceable
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Comments to AllSky group on Facebook

I bought this Arducam MIPI camera for the Raspberry Pi. It is 4672*3496 and the best that anyone seems to have gotten is 1 frame every 10 seconds. https://www.amazon.com/gp/product/B07W6LTFZC. I think it needs a $200 computer, not a $100 one. And some assembler or C programming. But then look at the time lapses posted by
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Comment on Flywheel energy storage experiment video

Electrical tests! | 2 Mechanical Battery by Black Sahara at https://www.youtube.com/watch?v=uiOf_-0aFP8 I like what you are doing or I would not comment. Please get a stand for your camera. Learn to solder. Learn to use sound card oscilloscopes and spreadsheets. Keep up the great work!! Thanks for the videos!! Put a “support” “donate” button somewhere.
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Why did the Google molecular weight of methane come out as 20.067?

Hello, I was working on atmospheric composition and asked google methane pubchem molecular weight It came up with 20.067 which traces to https://pubchem.ncbi.nlm.nih.gov/compound/2H4_Methane Now I am tired, but carbon is 12.011 and hydrogen is 1.008*4, so the total should be closer to 16.011 Is this page supposed to be deuterated?  12.011 + 2*4.0282035557 = 20.067407
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Comment on Virtual Family Trees for Ancestry and the Internet

Even though it might seem extra work, I might log into another account, but rather than make me the manager, I leave them as owner and manager, and invite myself as a DNA collaborator, and invite myself to their tree as Editor. Life is long and the people you help should have some measure of
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Some Notes on applications for MEMS gravimeters and their global calibration

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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Notes from Weather.gov survey questions.

Internet Research – global sensor networks and sharing Looking for data to correlate with other sensor networks Your left bars are rich in links. But you are using almost a different style of navigation on every page, certainly every section. With about 3 Million entry points for site:weather.gov that is a lot of hand building
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Comment on video to measure wavelength of sound and apply reasoning

Waterloo Double Slit 1 at https://www.youtube.com/watch?v=acgb5uP4CBM David, I think it would help viewers if you draw a wave on a transparency and overlay it onto another wave to show what is happening. Put two arbitrary time series and look where they match or do not as the time difference changes. Put a time series made
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Equation Accessibility on ScienceDirect.com, Encouraging Global Collaboration

I like the MathML and equation accessibility of your pages. I am at https://www.sciencedirect.com/topics/engineering/observability right now. But suggest you integrate some tools to immediately use the equations.  You have LOTS of them on your site, and they are disconnected fragments. Collectively they can change the world. And, there is no sense of community on this
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