molding-gel.md

@@ -18,7 +18,7 @@ Gelatin spheres can be made by dripping a hot gelatin solution in a cold oil (e.
 
 ![Gelspheres](uploads/5492c9ade2e6f329f957ec9147d22150/Gelspheres.PNG)
 
-Gelatin spheres made using the technique published by ([Workamp et al](https://aip.scitation.org/doi/abs/10.1063/1.4972587)).
+Gelatin spheres made using the technique published by ([Workamp et al](https://aip.scitation.org/doi/abs/10.1063/1.4972587)). Grid line spacing is 1 mm.
 
 ![PEResponseGelSuspension](uploads/dc8a7fd217686de833f13ea249ea1fcd/PEResponseGelSuspension.PNG)