From 25734d75e807024b3315e4d17734a6cdb37a77e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=98yvind=20Sigmundson=20Sch=C3=B8yen?=
 <oyvindschoyen@gmail.com>
Date: Thu, 18 Jul 2019 23:02:15 +0200
Subject: Add atomic units for intensity and electric field

---
 pint/default_en.txt | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'pint/default_en.txt')

diff --git a/pint/default_en.txt b/pint/default_en.txt
index 722ee36..55daf6b 100644
--- a/pint/default_en.txt
+++ b/pint/default_en.txt
@@ -321,6 +321,10 @@ lumen = candela * steradian = lm
 [illuminance] = [luminous_flux] / [area]
 lux = lumen / meter ** 2 = lx
 
+# Intensity
+[intensity] = [power] / [area]
+atomic_unit_of_intensity = 0.5 * ε_0 * c * atomic_unit_of_electric_field ** 2 = a_u_intensity
+
 # Current
 biot = 10 * ampere = Bi
 abampere = biot = abA
@@ -347,6 +351,7 @@ conventional_volt_90 = K_J90 / K_J * volt = V_90
 
 # Electric field
 [electric_field] = [electric_potential] / [length]
+atomic_unit_of_electric_field = e * k_C / a_0 ** 2 = a_u_electric_field
 
 # Electric displacement field
 [electric_displacement_field] = [charge] / [area]
-- 
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