space-gravity 우주 중력 시뮬레이터 https://space-gravity.hyuns.dev https://space-gravity.hyuns.dev (위 링크가 안되는 경우) https://space-gravity.vercel.app https://velog.io/@phw3071/1.-%EA%B8%B0%ED%9A%8D%EA%B3%BC-%EC%B4%88%EC%95%88-%EC%8A%A4%ED%8E%98%EC%9D%B4%EC%8A%A4-%EA%B7%B8%EB%A0%88%EB%B9%84%ED%8B%B0-%EA%B0%9C%EB%B0%9C%EA%B8%B0 https://velog.io/@phw3071/2.-UI-%EC%99%80-%EA%B8%B0%EC%B4%88-%EC%BD%94%EB%94%A9-%EC%8A%A4%ED%8E%98%EC%9D%B4%EC%8A%A4-%EA%B7%B8%EB%9E%98%EB%B9%84%ED%8B%B0-%EA%B0%9C%EB%B0%9C%EA%B8%B0 https://velog.io/@phw3071/3.-%EC%A4%91%EB%A0%A5%EC%9D%84-%EC%96%B4%EB%96%BB%EA%B2%8C-%EA%B3%84%EC%82%B0%ED%95%B4%EC%95%BC-%ED%95%A0%EA%B9%8C https://hyunsdev.notion.site/2c8522893ac04d99b3959e1cef4d3cc5