From bbabfb4ce19e2576308e8b34666075ab220fc2d5 Mon Sep 17 00:00:00 2001
From: Flancian <0@flancia.org>
Date: Tue, 20 May 2025 00:17:34 +0200
Subject: [PATCH] autopushed

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+- I like magnets -- some [[ideas]]:
+  - [[magnetic computing]]
+  - [[magnetic 3d printing]]
+  - [[magnetic assists]]
+    - In general magnetism seems like an amazing way to transfer momentum?
+  - [[magnetic gears]]
+    - As in the little devices I've built
+- Today (actually yesterday) I saw a great video on the principle of minimum action and it blew my mind a bit. It also introduced me to diffraction grating effects -- which I had heard about but hadn't grokked/seen demonstrated.
+  - The fact that angular momentum is quantized and has the same units as action... wow.
+  - This all made me think also of...
+    - Could you use diffraction gratings at astronomic scales to see into the past? E.g. by making visible light from a star that has taken a longer (slower) path to get to us.
+    - The effect that makes lights 'stretch out' in one direction in some mediums, like water (think of night lights reflected on a lake) or... the effect that is apparent in my chrome kitchen countertop that is quite something and I sometimes call the [[rainbow folding]] as per Heinali's great track :)
+    - All in all I really enjoy thinking about [[physics]] as of late.