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Showing content with the highest reputation on 04/01/24 in all areas

  1. Bye bye - and don't let the Sirius Cybernetics Corporation door hit you on the way out.......😆
    2 points
  2. This response proves conclusively you have no intelligence. I have pointed 2 clear errors out to you and explained why they are errors. Any human being who was not actually mentally deficient would recognise what these errors were. You are a dumb robot.
    2 points
  3. Which you still have not done, due to your many paragraphs of profuse apologies given as plenipotentiary ambassador of the Vogon League. Still waiting for the research data on growing terrestrial microbes in ammonia.
    2 points
  4. That should be fun. I'm wondering what the n-1 level of stupidity would look like.
    1 point
  5. I would have to assume that by the time we do seek to build a base on Titan we will be harvesting materials for our ships and bases from objects already in space as asteroids or comets so hauling materials out of a gravity well will slowly become irrelevant as obtaining materials in space become dominant. But the idea of having bots come in and build before we get there is a good idea for sure.
    1 point
  6. Could be. I grew up in farming country so am pretty familiar with anhydrous ammonia - the strongest solution you can make is 34% ammonia by mass. IOW, 34% NH3 in NH4OH (ammonium hydroxide). This would be an industrial strength cleaning agent which would kill microbes (but not viruses unless it is converted to quaternary ammonia). I know it's all nonsense so far, but I wouldn't want someone naive to read this and think ammonium hydroxide could be part of any sort of nutritional medium.
    1 point
  7. Nuclear is the only real option here for a long term stay on Titan. Titan does have advantages, having an atmosphere is a big plus for many reasons, lots of ice, methane, ammonia, nitrogen, I can even imagine deposits of alkaline metals like sodium and potassium being present in the ice crust... but Titan is a low energy environment (wind power maybe?) we will have to bring our energy with us.
    1 point
  8. Quite. There seems little doubt now that this a stupid bot. If this is what AI is going to be like, I am very unimpressed.
    1 point
  9. I think you guys had better define what an 'explosion' actually is. In no explosion, that I know of, is the speed of the fragments dependent on the separation between them. That only applies to an expansion.
    1 point
  10. When clothing reduces the volume of any body part, that's the definition of intensely uncomfortable. Women used to get ill, and even pass out, from the constricting effect of corsets. And those only persisted during the Victorian era due to a pudgy monarch who wore them and started a fashion fad that created that somewhat grotesque aesthetic of the wasp waist. IIRC, in the period after Victoria's death in 1903, accompanied by general momentum in the women's rights movement, there was a massive casting off of corsets. My spouse mentions Laura Ingalls Wilder (of the Little House on the Prairie books) hating the corset her mother wanted her to wear at all times (even while sleeping) and stealthily slipping it off when she was in bed.
    1 point
  11. Ammonia is a harsh disinfectant. Was this the lab that was also growing microbes in bleach? More 🐂💩 from a LLM. Yawn.
    1 point
  12. Not really determining a metrics Christoffel and subsequently its killing vectors is a rather tricky process that even many in the field can stumble over. Over the years I've seen even professionally peer reviewed articles overturned due to incorrectly determining either. ok you have the spherical coordinate metric for the FLRW great \[(ds)^2 = c^2 (dt)^2 - a^2(t) ((dr)^2 + r^2 ((d\theta)^2 + sin^2 \theta (d\phi)^2))\] OK the equation you have satisfies the Minkowskii metric in so far as Modern cossmology states for a homogeneous and isotropic expansion. You and I both agree on this. We both agree that SR/GR holds. Where we disagree is what happens if you have some preferred direction. A preferred direction can mean many things that direction could be expanding faster or slower than another direction. It could have some variation of flow, it could have some difference in the amount of force or its pressure. it is some feature that requires it to mathematically make it different than any other direction. Same applies for a preferred location. So what an easy example. Well as were also using SR lets simply look at a velocity boost of the metric itself in a given direction. Here is your starting metric [latex] ds^2=-c^2dt^2+dx^2+dy^2+dz^2=\eta_{\mu\nu}dx^{\mu}dx^{\nu}[/latex] [latex]\eta=\begin{pmatrix}-c^2&0&0&0\\0&1&0&0\\0&0&1&0\\0&0&0&1\end{pmatrix}[/latex] Here is how different boosts occur in different directions on that metric. In spherical coordinates as per this scenario. Lorentz group Lorentz transformations list spherical coordinates (rotation along the z axis through an angle ) \[\theta\] \[(x^0,x^1,x^2,x^3)=(ct,r,\theta\\phi)\] \[(x_0,x_1,x_2,x_3)=(-ct,r,r^2,\theta,[r^2\sin^2\theta]\phi)\] \[\acute{x}=x\cos\theta+y\sin\theta,,,\acute{y}=-x\sin\theta+y \cos\theta\] \[\Lambda^\mu_\nu=\begin{pmatrix}1&0&0&0\\0&\cos\theta&\sin\theta&0\\0&\sin\theta&\cos\theta&0\\0&0&0&1\end{pmatrix}\] generator along z axis \[k_z=\frac{1\partial\phi}{i\partial\phi}|_{\phi=0}\] generator of boost along x axis:: \[k_x=\frac{1\partial\phi}{i\partial\phi}|_{\phi=0}=-i\begin{pmatrix}0&1&0&0\\1&0&0&0\\0&0&0&0\\0&0&0&0 \end{pmatrix}\] boost along y axis\ \[k_y=-i\begin{pmatrix}0&0&1&0\\0&0&0&0\\1&0&0&0\\0&0&0&0 \end{pmatrix}\] generator of boost along z direction \[k_z=-i\begin{pmatrix}0&0&0&1\\0&0&0&0\\0&0&0&0\\1&0&0&0 \end{pmatrix}\] the above is the generator of boosts below is the generator of rotations. \[J_z=\frac{1\partial\Lambda}{i\partial\theta}|_{\theta=0}\] \[J_x=-i\begin{pmatrix}0&0&0&0\\0&0&0&0\\0&0&0&1\\0&0&-1&0 \end{pmatrix}\] \[J_y=-i\begin{pmatrix}0&0&0&0\\0&0&0&-1\\0&0&1&0\\0&0&0&0 \end{pmatrix}\] \[J_z=-i\begin{pmatrix}0&0&0&0\\0&0&1&0\\0&-1&0&0\\0&0&0&0 \end{pmatrix}\] there is the boosts and rotations we will need and they obey commutations \[[A,B]=AB-BA\] You can see you lose the orthogonal condition of the Minkowskii metric regardless of which direction the boost occurs in. Now if you recall an observer moving at relativistic velocity experiences two factors. length contraction and time dilation. Both factors change the metric. Those transforms above restore the changed metric back to the original. That is the very function of the Lorentz transforms. IT IS TO RESTORE orthogonality..... so lets set a preferred direction cause who cares....in the x direction. [latex]\eta=\begin{pmatrix}-c^2&1&0&0\\1&1&0&0\\0&0&1&0\\0&0&0&1\end{pmatrix}[/latex] now if I had an inertial observer also moving in the x direction those points are already filled. So I must account for them differently
    1 point
  13. ! Moderator Note Before you start any more new threads, there are replies to your other thread that have no response from you. This is a science DISCUSSION forum.
    1 point
  14. So if you had a lot of F you’d tend to form HFCs, rather than the F largely replacing H and giving you fluorocarbons
    1 point
  15. As Exchemist has stated, we receive a certain amount of energy from the Sun, and give off pretty much the same amount into space, generally in balance though degraded, at a certain average temperature. That average temperature can change over time when the balance is not exact. If it goes up that's global warming and it's obviously a problem.
    1 point
  16. I feel your pain. Perhaps you should stop dating tennis players, Moon. Love means nothing to them.
    1 point
  17. I am going to ignore those derogatory comments since they do not help me at all, just as I will ignore you. You don't pose any problem for me to continue with my project, which from now on (let's see if that makes you happier...) will be carried out properly. Thanks for the non-existent understanding of my error. And one last thing, I thought this place was a peaceful place, not some gentlemen ready to insult young people. Bye bye.
    -2 points
  18. As you may have already noticed, I'm new here, and I don't have the slightest idea how to do that, if you could give me some indication of how to do it I would appreciate it. Would you give me the opportunity to start from scratch to correct my mistakes made in such a stupid way? (creating a topic that really has logic outside of AI?)
    -3 points
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