Get the latest tech news
A better approach to gravity: how we made EGM2008 faster
- how we made EGM2008 faster For the last month we've been hard at work adding a new feature to Elodin, an ultra-high-speed implementation of EGM2008. EGM2008 – or Earth Gravitational Model 2008 for those acronym phobic readers – a high precision model of Earth's gravitational field..
Earth isn’t a perfectly smooth, uniformly dense sphere; it’s more like a slightly squished ball (an oblate spheroid) with bumps and dips from mountains, ocean trenches, and uneven internal mass distribution. Combined with data from earlier missions like Topex/Poseidon and Lageos, GRACE helped create a model that doesn’t just map Earth’s gravity—it tells the story of its dynamic changes. Like any good expedition team preparing for uncharted waters, I stocked up on critical supplies: energy drinks (far too many), research papers, and modern sea shanties (nothing helps me focus like the Interstellar soundtrack).
Or read this on Hacker News
