Hi All, I'm studying for a Ham Radio test and can't for the life of me understand the mechanism behind higher (in this case, Radio) frequencies leading to less refraction in (again in this case, the ionosphere) mediums. I'm sure light waves/dense transparent media has the same explanation. I've seen some good threads here on frequency being constant and wavelength/velocity changing. Does anyone have the extra step on why the bending is more for lower frequencies? Thank you!!