Everything posted by Ghideon
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Visualizing Gravity Equation Formulation and Questions
I don't understand your diagram, maybe I misinterpreted it? Your diagram states f=dmt Your definition, with units added: f: force (N) d: distance (m) m: mass (kg) t: time (s) Units in your formula: dmt implies units m*kg*s Force in SI units is: kg*m*s-2 The units don’t match, and no physical law I know of supports such a relation. So the diagram seems incorrect and nonsensical in physics.
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SFN Migrated and Upgraded
Same on Safari, apple laptop. Strange behaviour: I need to drag the heart icon, drop it onto the up or down button, then click the button. (see attached animation) 1.m4v
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What happened to the quote function ?
Thanks for the explanation! That reminded me; I had not yet tested the behaviour of the "wrap in quote". The new "wrap in quote" has the capability of moving already pasted text into a quote if the cursor is located in a paragraph. I find it useful for my style of writing; results in less cut & paste.
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What happened to the quote function ?
There might be differences between browsers, I found some quote functions I don't remember from before. The first one is quite useful: 1: mark a piece of text, a quote button appears: The resulting quote: 2: Quote button for one or more posts, available at the bottom of posts: The multi quote (the + button) collects a "stack" of quotes, this stack is available via a button and clicking the button inserts the quotes in the post, at the location of the cursor. (screen shots from Safari browser on Apple MacBook)
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SFN Migrated and Upgraded
I got a lot of those when clicking "scienceforums.net/contact/" trying to fill out the form, but so far not when logging on or when posting. I used relay service "iCloud Private Relay", standard Safari browser. I note that this was som days back but in case it helps: I used the contact form available at the bottom of the page on Friday. The forum tried to send an email verification, but I never received an email so I could not use the form. ("contact us" from the password reset / account creation area seems to work differently as @MSC pointed out, and that helped me.)
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Can truth contradict itself?
What type of tautology are you interested in? Logical and computational tautologies are within my area of expertise. (Language and legal tautologies for instance, not so much.)
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Measuring Artificial Intelligence
I agree. Was just curious about OP's point of view before writing a critical answer. Also, the opening post mentions "products" and gives an example of one LLM based product but does not mention context or interactions. The output such products produce depends on what it is used for and what input it is given. A good example is given above: (Retrieval augmented generation. In RAG systems, the quality of generated responses is determined by both the foundational model's capabilities and the relevance of the data retrieved during the process. )
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Measuring Artificial Intelligence
Before I comment on the details, are you speaking of AI in a broad general way or are you focusing on generative AI? I note that you gave one example that is based on LLM: Did you create the list of competence levels or is it from some source? Additionally, I wonder if the linear structure of your list accurately reflects the non-linear nature of both human learning and AI development. Example: As far as I know human babies demonstrate pattern recognition and adaptive responses at early stage, for instance based on smell and taste. This is something that generative AI based on a language model does not demonstrate, how does your list take this into account? I note that you say: (bold by me)
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Can the rotation of distant galaxies be explained without the use of Dark Matter and Energy?
Are you referring to the Heisenberg uncertainty principle? If so, what makes you think that it has a practical impact on scientists abilities to measure positions and velocities of macroscopic objects such as stars? (edit: x-post with @Genady )
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Does anyone use ChatGPT or another AI ?
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.
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Strange happenings
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.
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Strange happenings
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:
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What would be a general definition for intelligence and cognition?
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.)
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lift force supercooled supe conductor above magnetic field.
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?"
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Today I Learned
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.
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Short story (split from Was Einstein a Christian?)
Yes. I need glasses.
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Short story (split from Was Einstein a Christian?)
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
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Examples of Awesome, Unexpected Beauty in Nature
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.
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Simple yet interesting.
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.
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Simple yet interesting.
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.
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Simple yet interesting.
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
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Simple yet interesting.
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.
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Thumbs down is pettie
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.
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"computer" defined in the dictionary
You are correct. (In my attempt to post something helpful to OP I missed and/or misinterpreted the provided context.)
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"computer" defined in the dictionary
1: What is your own answer to the question? That could indicate your level of understanding of the answers provided so far; allowing members to provide some clarifications. 2: As an exercise for you: what assumptions have @MigL made about your hardware configuration?