The “Scale correction value” is a value related to the size of the video material that we have set independently. It is a name we have chosen at random, so if you have a better idea for a name, please contact us.
The video materials provided by this site are standardized to a resolution of 1920 x 1080, unless otherwise noted. Therefore, we have adjusted the display size of molecules to improve the appearance of various molecules of different sizes. However, one of the downsides of this is that “simply arranging video materials of different molecules does not reflect the actual size of the molecules.
The image above shows the acetylene and aniline video materials side by side. As you can see, acetylene seems to be larger.
Therefore, we adjust the scale correction values to get the correct size relationship.
Looking at these two download pages, the scale correction values for acetylene and aniline are listed as 2.5 and 5, respectively. This means that “the ratio of the sizes of the acetylene and aniline videos should be adjusted to be 2.5:5, or 1:2, to get it just right.
To give another example, suppose we want to adjust the magnitudes of aniline, ammonia, and ethanol. These scale correction values are 5, 2, and 2.5, so 5:2:2.5 = 1:0.4:0.5.
