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paulsutton

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  1. Hi I found a link to this the other day, I think there was a link on Mastodon to a press report, so I looked up some more useful info. However what I found interesting about the diagram is it shows s,c,u,d quarks but no top / bottom quarks. Hidden fifth dimension could tune dark matter resonance, new theory proposes https://phys.org/news/2026-07-hidden-dimension-tune-dark-resonance.html Link to papar (pdf) https://phys.org/news/2026-07-hidden-dimension-tune-dark-resonance.html How do others interpret the absence of top and bottom quarks., I guess the fact that Up / Down quarks are there, is important as these make up protons (udd) and neutrons (ddu). Paul
  2. Is there not a window of opportunity here, to decide what we as consumers want going forward. Slight tangent discussion on Mastodon about in Japan products being wrapped in plastic. My response was to suggest that to the generation brought up with this, wrapping everything in plastic is normal, same for the current generation seeing mobiles as normal, there is no frame of reference to the time when phones were attached by wires. So back to AI generated movies or AI actors, once this takes over and we also have AI actors to a whole generation this will be normal, they won't know any different. So I think we need to engage in a multigenerational way to decide what we want, debate pros / cons and decide the future. AI can help us do stuff that was not possible before, I think we will still have model makers, at least in the sense we want a spaceship in a movie so someone will fashion one to get an idea of what is needed, that hands on physical model can be very useful. This can then be reproduced in a movie, if we then want 1000 ships then AI can make this possible.
  3. I agree about our assumptions on 'sentient' beings, also didn't NASA find fungus growing on the outside of the ISS. There is also a reason why space probes are made in sterile environments to reduce the risk of contamination of planetary bodies. It is possible we have already had visitors to Earth, this could explain why there are depictions found on different continents. I think on the ST voyager episode Tattoo (season 2) the inhabitants of the planet the crew visited said they took several generations to travel to Earth.
  4. Sorry for the delay in this. The book I have is : Structural Mechanics Second Edition Ray Hulse & Jack Cain ISBN: 978-0-335-80457-5 palgrave.com
  5. Yes, Nature does have a canny ability to throw a spanner in the works of current thinking, Even the JWST is re writing our understanding of the universe early history, so as you said nature has many things that don't fit. Once we reach the moon, we will probably end up re-writing everything on stress based on what we learn in micro gravity on the moon. Different environment will throw up more problems, just that the stakes will be much higher i guess, as we can't evacuate a moon base. As we are talking about materials and stresses, what do people make of this?77 'It's crazy' - villagers mystified as river dramatically changes course https://www.bbc.co.uk/news/articles/cqxlv7x1527o Would there be a connection, it does look like human intervention by land owners may have had unexpected consequences.
  6. I found a book in a charity shop on Structural Mechanics which seems to cover some (or may be all) the topics @studiot is covering so I I will give that a read too.
  7. I was thinking that, given that 1 mole of a substance still has the same number of atoms, e,g 1 gram of Hydrogen and 238 grams of Uranium would still have 6.022 x 10^23 atoms. So they may calculate based on that, and as you said infer the 1/2 life. Maybe that is a question for another thread.
  8. That is pretty cool, I wonder what he would think about the fact that his experiment is still going after nearly 100 years, Then again look at the 1/2 life of some radioactive isotopes, some take seconds others take days, months or even years.
  9. Is this why people are advised to lie on their back and float in water, if the get in trouble, as it increases the surface area and buoyancy due to the upward forces? Interesting geological / geochemistry differences given Devon and Somerset are next to each other, how do they contrast with Dorset ?
  10. Yes, but isn't excusive or written as XOR as opposed to OR. for an OR gate?
  11. Just found this course on Futurelearn, which may give some insight into your question https://www.futurelearn.com/courses/justice-fundamental-rights-and-artificial-intelligence Paul
  12. I will try and do some more digging in terms of haemoglobin. In terms of what was mentioned before near the coast | was more thinking of cars rusting due to salt (or rather sea) water ( even though I think it is more corrosion) rather than silver tarnishing, sorry I need to be more clear on things. Re Haemoglobin https://www.tandfonline.com/doi/pdf/10.1179/135100003225002817 Seems to explain the process, with oxygen and haemoglobin, this is a little above me, but I do understand what a REDOX (Reduction and Oxidation) where Reduction is gaining electrons and oxidation loses electrons). Seems quite a complex set of processes going on with this.
  13. Agreed, however it doesn't stop what ever metal you are using reacting with the environment, chrome for example will tarnish, silver does over time, i think more so in salty environments such as near the coast. Am I right in thinking Oxidation is still transfer of electrons (loss) even if this is iron or hemoglobin to oxyhemoglobin in blood. Paul

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