Category: Symbolic Mathematics

Comment on Jordan Sullivan, Neutrinos and Antimatter Video

Neutrinos and antimatter at https://www.youtube.com/watch?v=YcpNhPBxwfo Jordan, You can combine a particle and its anti-particle into a stable form, if you provide angular momentum. The external charge and magnetic dipole moments are effectively zero, and the particle is effectively all binding energy which has no mass. The pair can store most any amount of energy, but
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Comment on video about the solar interior – another way, with the whole human species working together

What Does The Inside Of The Sun Look Like? https://www.youtube.com/watch?v=8ayHXTnN4fk In the visualization from 3:00 to 4:00, I think there should be small particles coming from every point to every point in the detector. For instance something coming from the far upper right. to the far lower left. Not just radially outward from one point
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Comment on Downwind Faster Than the Wind by Veritasium, How Does it Work?

Downwind Faster Than the Wind by Veritasium: How Does it Work? https://www.youtube.com/watch?v=CkhBskovitQ A good quantitative simulation does not need words, and the process of design is more efficient, not maintaining an inaccurate word model alongside the simulation. The words will always be ambiguous, but the model can be calibrated and fit to measurements from the
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Emoji languages – symbols and communication

Emily, Humans and animals with eyes are pretty good at quickly identifying things seen in the past.  It is a basic survival skill.  “Identify the person”, “Identify the weapon”, “Identify the ripe fruit”. So when training populations for basic survival, you probably have to go back to “Identify and classify quickly” – if you value
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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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Broken Links on PCMDI.LLNL.gov – Global Climate Change Models

Karl, Here are some notes on broken links and bad practices.  I put notes on my search for climate models.  I do these rough searches to get started on a complete review of a topic group on the Internet.  Picking a hard enough problem at global scale is the only way to stay organized and
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Comments on a video tour of Cern’s Atlas facility

360° tour: ATLAS Experiment – Inside CERN’s largest detector! https://www.youtube.com/watch?v=On1WbLKP8DA Dear Atlas at Cern: There are two purposes for a video like this. One is to simulate what physical visitors do and see if they ever have a chance to visit. You show the parking lot, door, elevator, tunnels, and things. You show things from
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New Video – Some NOAA Visualizations Data Projections More Gravity Sun Moon Global Cooperation

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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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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