And what steric hindrance means is it will create the least amount of electric repulsion. So, for instance, if we examine the following hypothetical cyclohexane molecule, in which the first carbon and the third carbon contain these large green groups that point along the axial position, because these point along the axial position, they will essentially bump with one another, their electron densities will slightly coincide. And these electron densities, because they both have negative charge, will basically create electric repulsion. And that electric repulsion will increase the energy of this molecule compared to the case when these two groups would point along the equatorial position. So, with that in mind, let's compare the alpha D Glucopyronose and the beta D Glucopyronose in their chair confirmations. So, let's begin with the alpha D glucose.