From b8e167ccb7409e684fa8dd6b1a8cf55b1ecebc50 Mon Sep 17 00:00:00 2001 From: Bryan Newbold Date: Sat, 27 Jun 2020 17:05:42 -0700 Subject: add notes from April 2020 --- 2020/04/hyperphysics/light_and_vision/inverse_square_law.md | 6 ++++++ 1 file changed, 6 insertions(+) create mode 100644 2020/04/hyperphysics/light_and_vision/inverse_square_law.md (limited to '2020/04/hyperphysics/light_and_vision/inverse_square_law.md') diff --git a/2020/04/hyperphysics/light_and_vision/inverse_square_law.md b/2020/04/hyperphysics/light_and_vision/inverse_square_law.md new file mode 100644 index 0000000..f571c0f --- /dev/null +++ b/2020/04/hyperphysics/light_and_vision/inverse_square_law.md @@ -0,0 +1,6 @@ + +; see power_solid_angle + +(eq E + (/ I (exp r 2))) + -- cgit v1.2.3