alt Hacker NewsNice job!
It's interesting to see how little effect the orbit and rotation had on the straight line. A proposal is to align the numbers for the different movement categories so that it's easier to see the magnitudes of them.
It took me a couple of seconds to understand the concept, from the title I though it was going to be a planner to show gravity assists etc.
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 messy. I'll switch to monospace or tabular-nums in the next push so the magnitudes scan better.
And fair point on the title-'calculator' implies mission planning. Maybe 'travel visualizer' would have been safer!