# Can you and your friends help save the world?

Yohan J. John @DrYohanJohn “I like to build universes that do fall apart. I like to see them come unglued, and I like to see how the characters in the novels cope with this problem.” – Philip K Dick https://burningshore.com/p/pkds-divine-interference Yohan, The human species now needs precise digital simulations of all things, so machines explore

# Teach your country how to use computers and the Internet to share models and simulations that all can use and trace

H C Verma Course:  HC Verma-Magnetic field a consequence of relativity in hindi at https://www.youtube.com/watch?v=SMHbdyJDL1I New: This is a good result, but it needs to be in the computer as an engineering model. Not long algebra on a blackboard. Old: H C Verma, You are perpetuating a population of humans in a country that relies only

# Richard Talks to ChatGPT 4.0 about electrons in a lattice. Would this be a good global competition topic?

Dearest Readers, I have had hundreds of conversations like this with GPT 4 at OpenAI.  It cannot or will not remember what I say from conversation to conversation, so I have to trick it into “getting in the grove”.  I know these subjects well, since starting electrodynamics more than 50 years ago.  But I am

# Give AIs full mathematics, models, equations, calculators, computers, sensors and memory of their own

Cool Worlds Podcast: #4 Hod Lipson – Automated Physics Discovery, ChatGPT, Future of AI at https://www.youtube.com/watch?v=KT7gAYmnOhI Hod Lipson,  If you take a time series and its first and second differences, the systems where “velocity” and “acceleration” work are the ones where the second difference, “acceleration” is normally distributed. For 25 years, I have checked all the

# Prasad Raju – Geophysical time series

Prasad Raju,   I suggest you use online resources to look at the data. There is a lot of seismometer and magnetometer data. There is meteorological data. If you just want sources of interesting signals, there is some good solar data (solar dynamics observatory), data from lots of astronomical and astrophysical surveys. Radio telescope data

https://www.cadence.com/en_US/home/tools/system-analysis/computational-fluid-dynamics/pre-processing-meshing.html Is there an “intro to Cadence computational fluid dynamics” that tells the hardware requirements as a function of mesh size, time step size, precision? I wanted to teach basic properties of vertical flight through the atmosphere up to orbital velocities. I wanted to start with classical shapes, then add more complexity. Then let the

# BrainTruffle Fluid Dynamics

BrainTruffle:  Fluid dynamics feels natural once you start with quantum mechanics at https://www.youtube.com/watch?v=MXs_vkc8hpY BrainTruffle, You need to use real measurements, on real systems, to match your different simulation strategies to real things. You are guessing by eyeball. You can get massive amounts of data from a number of places, or your own experiments. A billion

# Principle of least action

Paul M Sutter: The Most Important Idea in Physics: The Principle of Least Action – Ask a Spaceman! at https://www.youtube.com/watch?v=UuqpCBZoX3M You say mostly the right words, but mathematics is powerful when you share the equations and methods and diagrams and geometry. Physics and engineering are powerful when you share the diagrams, equations, data and real examples.

# Now make it into an online toolkit with associated data

Zhigang Suo @zhigangsuo 23h The new book by ⁦@LallitAnand⁩, Ken Kamrin, ⁦@SGovindjee⁩ arrived today. The authors state that the book is for a course for undergraduate juniors and seniors. Topics include Elasticity Plasticity & creep Fracture & fatigue Viscoelasticity Rubber elasticity https://pic.twitter.com/mWhbXpAVKy Replying to @zhigangsuo @LallitAnand and @SGovindjee Now make it into an online toolkit

# Comment on Video about “Real Capacitors” – When you give people memories of real things, they learn faster

Real Capacitors at https://www.youtube.com/watch?v=hlmPFbHTHTw Sabrina Koffler, You could easily have shown the behavior of a few “real” capacitors as a function of frequency. And added a variable resistance and inductance to show the effects of changing those. Design, testing, measurement is all about numbers, data collection. More and more that also means models, algorithms, comparison between