diff --git a/README.md b/README.md
index de05984..0899aeb 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
 # videos
 
-Narrated Manim maths explainers
\ No newline at end of file
+Narrated Manim maths explainers. Click a `.mp4` to play it in the browser.
+
+| Video | Length | What it shows |
+| --- | --- | --- |
+| [Śrī Yantra · two poles](yantra-two-poles.mp4) | 2:09 | The Śrī Yantra inverted in its own circle, then lifted onto a sphere: circle inversion becomes a top-to-bottom flip, and the bindu and infinity become the two poles of one sphere. |
diff --git a/yantra-two-poles.mp4 b/yantra-two-poles.mp4
new file mode 100644
index 0000000..8cde54a
Binary files /dev/null and b/yantra-two-poles.mp4 differ