diff --git a/Day-Night-Cycle-and-solar-Energy.md b/Day-Night-Cycle-and-solar-Energy.md
index 63fe65e..a8bb34c 100644
--- a/Day-Night-Cycle-and-solar-Energy.md
+++ b/Day-Night-Cycle-and-solar-Energy.md
@@ -1,4 +1,4 @@
-A full 24 hour cycle is 16*24 ticks = 384 ticks, which is about 6-7 minutes, depending on the game server configuration. The sun intensity varies during the day and peaks at about 12h00, the equation of for the sun intensity is `f(x) = -0.25 x² + 6x - 27` rounded to the nearest integer with a floor of 1. 
+A full 24 hour cycle is 16*24 ticks = 384 ticks, which is about 6-7 minutes, depending on the game server configuration. The sun intensity varies during the day and peaks at about 12h00, the equation for the sun intensity is `f(x) = -0.25 x² + 6x - 27` rounded to the nearest integer with a floor of 1. 
 
 ![Sun intensity](https://user-images.githubusercontent.com/7120851/34342393-bfa33cfc-e97c-11e7-8e8b-b443af68bb3b.png)