Life & fun · September 29, 2017

BFR | Earth to Earth from SpaceX
Travel anywhere on Earth in under an hour
BFR | Earth to Earth from SpaceX launched on September 29, 2017 with 7 votes, #1,102 of 3,082 launches that month.
What it does
BFR | Earth to Earth appears to be a reusable SpaceX rocket designed for international travel. Flying at 27,000 km/h the BFR can take passengers to most destinations in 30 minutes and everywhere on earth in 1hr.
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I built this because measuring my age in years felt boring—I wanted to see the kilometers. The first version only used Earth's orbital speed (~30km/s), but the number moved too slowly. To get the "existential dread" feeling, I switched to using the Milky Way's velocity relative to the CMB (~600km/s). The math takes some liberties (using scalar sum instead of vector) to make the speed feel "fast," but it gets the point across. Under the hood, it's a single HTML file with zero dependencies. No React, no build step. The main challenge was the canvas starfield—I had to pre-allocate the…
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I made this site using R3F (https://github.com/pmndrs/react-three-fiber), a React renderer for 3JS (https://threejs.org/). The celestial bodies are Three.JS meshes. I used loaders (namely 'useLoader' from R3F and 'GLTFLoader' from 3JS) to import 3D models, such as International Space Station. More on loading models in R3F: https://docs.pmnd.rs/react-three-fiber/tutorials/loading-mod... I've future plans for this side project. It would be great to hear from the HN community before diving into them. Enjoy! P.S: Getting an empty…
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