Lesson5.md

@@ -85,7 +85,7 @@ At this point we started wondering whether the wires to the engines were creatin
 #### Testing condition 2: Surface
 As we saw no discernible difference with the lights turned on or off, we left it on for the remainder of the experiments as it was vastly easier to work with.
 
-Because we know from past experiences that the measured reflected light for the light sensor is affected by the color of the surface, we suspected that either the color of the bathroom floor, or the inconsistency in the color (as seen in figure 3) could possibly affect the reliability of our balancing robot.
+Because we know from past experiences that the measured reflected light for the light sensor is affected by the color of the surface, we suspected that the inconsistency in the color of the grey bathroom floor (as seen in figure 3) could possibly affect the reliability of our balancing robot.
 
 To remedy this, we tried experimenting on a black surface that we brought into the bathroom, which can be seen in figure 3. A notable problem with this surface, however, was that it was rather rough, and as such could have slightly inconsistent reflection.