Physics Forums

We have many threads on AI, which are mostly AI/LLM, e.g,. ChatGPT, Claude, etc. It is important to draw a distinction between AI/LLM and AI/ML/DL, where ML = Machine Learning and DL = Deep Learning. AI is a broad technology; the AI/ML/DL is being developed to handle large data sets, and even... Read more

Hi everyone, I tried searching the forum but couldn’t find anything directly related. I’d like your opinion on the existence or feasibility of a mechanism concept I’d like to explore. I’m attaching a rough 2D sketch and I’ll try to be as clear as possible. Imagine a rod that must perform a... Read more

Two players, A and B, are playing a game, and the probability that either player wins a round is 1/2. They contribute equally to a prize pot. The game ends when one of the players wins six rounds. The game is interrupted for some reason when player A wins 5 rounds and player B wins 3 rounds. How... Read more

At constant pressure we have: $$ dq_{p}=dH=C_{p} dT $$ which implies The enthalpy change dH reflects the increase in internal energy associated with molecular motions such as rotational and vibrational modes. The atoms, molecules or ions that compose a system can undergo several types of... Read more

The magnetic moment of an electron is about 700 times bigger than that of a proton. Both have spin 1/2, but in equal external magnetic field, the energy of an unpaired electron is about 700 times bigger than the energy of an unpaired proton. (All nuclei other than the triton have magnetic... Read more

Here is an interesting geometry problem given for general interest. In the figure, compute the fraction that is shaded. Then extend that to a sphere snugly packed in an octant of a larger sphere. That means the smaller sphere is tangent to each plane and to the larger sphere in the most compact... Read more

Without wasting time, this is an AI generated video of Keanu Reeves. This is an AI generated audio of some famous people having a conversation. As you can see AI generated videos and audios have become so realistic in the last few years. It could be very... Read more

This is another follow up in my campaign to have a separate forum for history of science. Similar to my on-going thread Interesting anecdotes in the history of physics? this one would be about specific quotes. What are some of the memorable quotes said by physicists? [I will allow... Read more

Here are some great pictures and an open access article from Quanta magazine of Cambrian fossils (like Burgess Shale) from Southern China. Example:

I want to know if one specific structural argument holds. Take a spin-1 system or NV centre ground-state triplet as a three-level observer T in C³, entangle it with N probe qubits. Joint space is C³ ⊗ (C²)^⊗N, dimension 3·2^N. The joint state I prepare is: |Ψ⟩ = (1/√3) Σᵢ |rᵢ⟩_T ⊗ |φᵢ⟩_P... Read more

Soft matter or soft condensed matter is a type of matter that can be deformed or structurally altered by thermal or mechanical stress which is of similar magnitude to thermal fluctuations . The science of soft matter is a subfield of condensed matter physics ... Read more

Hi What is the relationship between superconductors and gravity? Eugene podkletnov came up with some interesting findings. The first experiment centered on a spinning superconducting disk and the possibility of slight weight reduction above it .

Muu9 - 351 - 249 - TL;DR - "This article discusses incorrect statements appearing in textbooks on quantum field theory (QFT); some of these mistakes also appear in the research literature. The focus is not on errors made by an individual author, but on conceptual muddledness that is widespread in introductory textbooks."

Passionate about physics since my earliest childhood, I was dazzled when I read this statement : “In speaking of the Energy of the field, however, I wish to be understood literally. All energy is the same as mechanical energy, whether it exists in the form of motion or in that of elasticity, or... Read more

Hello all I summarised my question on the attached picture I will wery appreciate if somebody can confirm: Does my attempt to find distance a2_b2 correct? Is there simplier method? It is not a homework, It is for my hobby project. (I want to simulate my robot's sensor readings in... Read more

Multiplication and Division by Numerical Trituration Image: AI Google I - Multiplication by Numerical Trituration First Example 157 x 3 = a = 100 x 3 = 300 b = 50 x 3 = 150 c = 7 x 3 = 21 157 x 3 = a + b + c 157 x 3 = 300 + 150 + 21 = 471 Second Example 45 x 23 = a... Read more

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Someone who shows interest in science is initially a welcome development. So are fresh ideas from unexpected quarters. In contrast, there is a scientific community that is meticulously organized down... Read more

kuwrom - 0 - 1 glad to join here

hey I'm doing a school project on water ripples and I'm trying to wrap my head around some of the basics I understand some of the water molecular and surface tension stuff but and still a little confused by it but I do have a couple of questions What happens when a water ripple hits a... Read more

So I’m playing with ai, and I might be on to something… most likely not a holy grail or anything but a different take on dark matter and others.