Recent content by Janus

  1. Janus

    Star maps using Blender

    I have done that, Since the Vizier site does allow you us that as a constraint. I had to create separate CSV files for each class, and then do a separate geo-node for each. I used the blackbody temperature colors for the stars. The color difference is subtle. While this looked nice with still...
  2. Janus

    Star maps using Blender

    As per your request: Getting the text to look proper for the second part took some finagling. The first part was pretty straight- forward. Basically it meant making an individual CSV file which only had a single row of information which related to the star I was labeling. Then using that...
  3. Janus

    Star maps using Blender

    Since moving just a few light years would not make much of a difference, I decided to make this animation. It starts from 5 ly out and then recedes. I chose Ursa Major as the background constellation again, as it is one of the most recognizable. Since the original data didn't include the Sun...
  4. Janus

    Star maps using Blender

    That would be a bit beyond this particular application's ability. First off, you'd need accurate values for all the orbital elements of its trajectory through the Solar system. The resulting accuracy of this trajectory would depend on how accurate our values for those elements are. To track...
  5. Janus

    Star maps using Blender

    A couple more examples. The first incorporates proper motion data to show how Ursa Major would change over time. I included other visible stars and their proper motions as well. The second touches on the change of view due to position and shows how the constellation would change as the viewing...
  6. Janus

    Star maps using Blender

    Technically I could be done, though some adjustments would likely be needed to be made. For Alpha C, you should just be able to move the camera to its position and point it at our Sun in the model. For stars significantly further, it would take some additional work. Let's put it this way: Our...
  7. Janus

    Star maps using Blender

    Blender just recently dropped a new version, 4.5(with 5.0 on the horizon), and within it was a new feature for which I immediately thought of a use for. The new feature was a .csv importer for Geometry nodes. Geometry nodes are a method of modelling that uses a node tree to create 3D models...
  8. Janus

    A three month long summer vacation from public school seems stupid

    So basically, you are using "I'm cold, put on a coat." reasoning.
  9. Janus

    A three month long summer vacation from public school seems stupid

    In other words, kids shouldn't be allowed to be kids. And I question whether you'd get that much of an improvement. I think it would more likely lead to burnout, especially in younger children. It would also be interesting to see what happens when a majority of working people with children...
  10. Janus

    Today I Learned

    Based on the novel by D. F. Jones, which is the first of a trilogy. The other two being "The Fall of Colossus" and "Colossus and the Crab".
  11. Janus

    Today I Learned

    With Finland, I think it's more related to their cultural past. In their national epic, the Kalevala, there is a lot of mention of words/names having power. Wizards were able to do great feats just by knowing and using the right words. Names also tended to reflect something about the person...
  12. Janus

    Today I Learned

    In addition, traditionally, children are not named at birth but a few weeks later.
  13. Janus

    Today I Learned

    Addendum: For "you" "we" "they" "he", "she", "it" you replace the "en" as follows: You(singular): et You(plural/formal): ette we : emme they: eivat he/she: ei it: ei ( properly, Hän( he/she) or se(it) precedes the ei, however in everyday speech, unless it is not clear by context, se is used...
  14. Janus

    Today I Learned

    TIL that there are at least 10 ways of saying "I can't" in Finnish: 1. En osaa - due to lack of knowledge or skill. Such as, I can't drive because I never learned how 2. En saa - due to lack of permission or not being allowed to. I can't drive because my license was revoked. 3 En ehdi - due to...
  15. Janus

    A Why do both poles of a radio pulsar emit radio waves?

    Pulsars "pulse" because their magnetic poles and rotational axis don't align. The radiation emitted from the magnetic poles is constant. We only receive it when if the rotation of the pulsar causes the beam to periodically sweep past us. It's like seeing a lighthouse produce flashes even...
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