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Ghideon

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Ghideon last won the day on October 30 2022

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  • Location
    Sweden
  • College Major/Degree
    M.Sc. Computer Science and Engineering
  • Favorite Area of Science
    Physics

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  1. ChatGPT, go-to model for private tasks and for some work. (using paid version; see official price on their web) Some examples: -General exploring of LLM and what their capabilities and limitations are -Getting a second opinion when helping my kids with homework; taking a picture of a problem and asking for different approaches. -Using plugins, for instance "@Wolfram" for mathematical results by using Wolfram alpha -Loading a few (public) papers and asking for comparisons, differences or if a statement is supported by the papers or not -Building GPTs to explore what kind of ecosystems that may or may not emerge in the world of GenAI. Copilot (licensed by employer) -Work, especially any work that needs access to corporate data or that is intended for use in a commercial context Local installation of Stable Diffusion or Flux.1 (free, not counting local hardware) -Image generation Local installation of Llama 3.1 (free, not counting local hardware) -Experiments with text; comparing to larger models, testing the limits of smaller local models For some tasks, such as organising a workshop or preparing a seminar I may use combinations of the above models depending on the context and the points I want to illustrate.
  2. Maybe you can do an experiment? Like dropping a small round object in front of the camera and see what the resulting video looks like? You could try different things so that air resistance affects the velocity, for instance a small metal ball, a piece of paper, a tiny feather or similar.
  3. Is it from a night vision camera? Is the shutter speed slow? My guess is flight tracks of an insect, like small moth, over several wing beats. I assume you mean the bright things moving, as seen in this screen shot from 2s into first video:
  4. Not true. The complexity of a problem doesn't stem from failure. Successful and unsuccessful researchers alike can appreciate that some problems are inherently complex due to gaps in current knowledge, not because of their inability to resolve them. Note that "complex" is not the same as "complicated" (edit: Noting that the member is banned; I will not spend time to sort out their misconceptions.)
  5. I'm trying to understand the question. Is this a correct interpretation @Downlord4spaceflight? "When we cool a superconductor and place it above a magnet, it can float or hover because of special magnetic effects. If we start adding some non-magnetic weight to this floating superconductor, how much extra weight can it hold before it stops levitating? Essentially, what is the maximum additional mass the levitating superconductor can support while still staying afloat above the magnet?"
  6. During my vacation I learned, among other things, that Minimum Description Length (MDL) principle can be seen as a formalization of Occam's Razor in the context of statistical modelling and data analysis. Thanks @joigus for sharing this that triggered my curiosity: I had some practical experience from related areas such as data compression and communication. But I did not know much about the science that formalize and quantify intuitive but vague concepts (for instance complexity, simplicity, randomness of individual objects) and hence allows one to talk about them in a rigorous way.
  7. What scientists and what experiment are you referring to? Is the above part of your alternative history plot? There was an observational test of general relativity in 1919*. Widespread newspaper coverage of the results from the solar ecplise experiment led to worldwide fame for Einstein and his theories. The Second World War was between 1939-1945. *) https://en.wikipedia.org/wiki/Eddington_experiment
  8. Unexpected that these beaches look the same at a distance, yet they are different on closer inspection: Top: A beach in northern France covered by pebbles. All* of them are egg shaped. Bottom: A beach in northern Sweden; all* of the stones are flat like "coins". Why are the stones on the Swedish beach flat? Educated guess: *) The vast majority at least; during a short walk no family member observed any flat stone on the French beach or egg shaped stone on the Swedish beach.
  9. Your reply indicates fundamental confusion regarding factors, integers, prime numbers*. Here is an online source that may be suitable: "Gain familiarity with factors and multiples". There are chapters for factors, prime numbers, composite numbers and quiz to test your skills: https://www.khanacademy.org/standards/CCSS.Math/4.OA#4.OA.B *) amongst many other things indicated in the posts; too many to list.
  10. Time is up. The task was: Show, in at least two individual and different ways, why the following statement is false: Answers: 1: Factors of RSA numbers are prime numbers. Prime numbers are integers. The proposed number is not an integer and hence it can't possibly be a factor of any RSA number. 2: An RSA number is a product of two large primes of the same size. Quick head count gives that the primes used in RSA-2048 have approximately 300 decimal digits. The suggested number is tiny and therefore not a factor of RSA-2048.
  11. 1: Use the hints already provided: And then new hints: 2: Look at the RSA numbers that have been factored at https://en.wikipedia.org/wiki/RSA_numbers and compare to page 1 in the paper https://crypto.stanford.edu/~dabo/papers/RSA-survey.pdf * 3: "Your equations" are just a distraction, they provide no information and can't be used. 4: Unsupported claims are not part of the solutions I think of. *) Basic RSA knowledge
  12. No. Let's express it as a small task intended to approve your critical thinking. Task: Show, in at least two individual and different ways, why the following statement is false: Hint: More hints can be added upon request.
  13. Maybe the "immune system" is a more fitting analogy? The forum can be seen as an organism. When disruptive behavior occurs, the community’s response acts like an immune system, identifying and neutralizing the perceived threat. This protects the forum from the “contagion” of negativity and aims to preserve its overall health, purpose, and constructive spirit.
  14. You are correct. (In my attempt to post something helpful to OP I missed and/or misinterpreted the provided context.)
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