captainnemo729

6 ms·

1. 1.▲
   Show HN: A Vanilla JavaScript 3D engine v2 to track lifetime space travel(cosmicodometer.space)

   1 points by captainnemo729 7mo ago|0 comments
2. 2.▲
   Show HN: Built an space travel calculator with vanilla JavaScript v2(cosmicodometer.space)

   2 points by captainnemo729 7mo ago|0 comments
3. 3.▲
   by captainnemo729 8mo ago

   Thanks! glad you liked it
4. 4.▲
   by captainnemo729 8mo ago

   nice. i debated using three.js but didn't want the overhead/imports for a simple background. wanted to keep it raw canvas to stay zero-dependency. you're totally right about the resize jank though. the math definitely breaks
5. 5.▲
   by captainnemo729 8mo ago

   i was just going for a synthwave/tron aesthetic. the glowing borders are a deliberate style choice, not a GPT artifact.
6. 6.▲
   by captainnemo729 8mo ago

   thanks! glad you liked it
7. 7.▲
   by captainnemo729 8mo ago

   fair point. i'm taking some poetic license with spacetime. treating 'distance traveled' as a proxy for age since we're all stuck on the same rock moving at the same speed.
8. 8.▲
   by captainnemo729 8mo ago

   thanks! it was a fun weekend hack to put together. glad you liked it.
9. 9.▲
   by captainnemo729 8mo ago

   that's a really interesting angle. i thought about it, but i was worried a log scale might abstract away the 'feeling' of the distance (making a light year look deceptively close to a kilometer). i want the user to feel small
10. 10.▲
    by captainnemo729 8mo ago

    fair point. classic case of 'dev blindness'—i've tested it so many times i forgot it's not obvious to a new user. pushing a label fix now so it's not a guessing game. thanks.
11. 11.▲
    by captainnemo729 8mo ago

    valid point on the visualization. i tried to map it initially, but the depressing reality is that even at 1.2 trillion km, we're basically a stationary dot on a galactic scale. a map just looked like a blank screen, so i went with the
12. 12.▲
    by captainnemo729 8mo ago

    yeah it's actually depressing. based on the odometer's math (~850km/s), you hit the 1 Light Year mark around your 353rd birthday.
13. 13.▲
    by captainnemo729 8mo ago

    thanks. i love those old screensavers because they were so efficient. tried to keep this one lightweight too just a simple canvas loop so it doesn't spin up the fans.
14. 14.▲
    by captainnemo729 8mo ago

    I actually ran the numbers on time dilation! At 600km/s (0.2%), the effect is surprisingly small. We basically 'save' about 63 seconds a year compared to a stationary observer relative to the CMB. Not enough to live forever,
15. 15.▲
    by captainnemo729 8mo ago

    The fish tank analogy is perfect. It feels illegal that we're moving this fast without a dashboard. And definitely give yours another shot. Since this is just vanilla JS, feel free to view source on mine to see how I handled the frame
16. 16.▲
    by captainnemo729 8mo ago

    Yeah the scale difference is crazy. Once you add the Galaxy/CMB velocity, the earth's rotation basically becomes a rounding error. Good call on the number alignment. I'm using a variable-width font which makes comparing them
17. 17.▲
    Show HN: I built a space travel calculator using Vanilla JavaScript(cosmic-odometer.vercel.app)

    54 points by captainnemo729 8mo ago|34 comments