https://hackerpaper.kaipfister.de/p/0808.3943/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=5059538urn:hackerpapers:mention:0808.3943:5059538Tue, 15 Jan 2013 10:24:25 GMT<p>I remember studying some of Noether&#x27;s early work in a course on classical mechanics at university. It&#x27;s one of the things I remember from my degree that still blows my mind. Noether&#x27;s theorems in classical mechanics associate symmetries of the laws governing a physical system to conservations laws of that system. For example, Spatial translation symmetry =&gt; Conservation of momentum Spatial rotation symmetry =&gt; Conservation of angular momentum Time translation symmetry =&gt; Conservation of energy Phase symmetry =&gt; Conservation of electric charge When you study relativity, and unify space and…</p><p><a href="https://hackerpaper.kaipfister.de/p/0808.3943/">Paper and discussion history</a>. A mention is not an endorsement.</p>math.AP