diff --git a/content/Exercise_set_6.md b/content/Exercise_set_6.md
index 403d8cc070d486d4ad7b65788859fc3528c024d4..849d7c7ebf413744f2dd18ad9e70d0e75a9d32b5 100644
--- a/content/Exercise_set_6.md
+++ b/content/Exercise_set_6.md
@@ -52,8 +52,7 @@ liquid crystal, frozen into different crystalline domains.
 name: liquid_crystal_domains
 width: 75%
 ---
-Crystal domains of a liquid crystal. In each domain, the crystal structure
-has a different orientation.
+Crystal domains of a liquid crystal. In each domain, the crystal structure has a different orientation.
 ```
 
 A phase transition can also happen by another type of process, where the
@@ -130,11 +129,7 @@ other atoms. But let us not get into all the subtleties of these forces
 ---
 name: fig:gecko
 ---
-A gecko can scale walls thanks to sticky Van der Waals forces. Their
-feet have a lot of grooves to increase their surface area. Research
-groups have tried to imitate their art to create 'spider man suits' for
-human beings. Unfortunately, the ratio between our body weight and
-surface area is not optimal for this ability.
+A gecko can scale walls thanks to sticky Van der Waals forces. Their feet have a lot of grooves to increase their surface area. Research groups have tried to imitate their art to create 'spider man suits' for human beings. Unfortunately, the ratio between our body weight and surface area is not optimal for this ability.
 Images by Verdian Chua on [Unsplash](https://unsplash.com/photos/imyYqxSgu4Q)
 and Matt Reinbold on [Flickr](https://www.flickr.com/photos/furryscalyman/3830578747).
 ```