When I Cut My Hair Short, It Looks Thinner

(male) Hi, i was wondering something and had a question. When i cut my hair real short and stand under direct light you can see my scalp, but if i am in just regular light like out in the car i can not see it. The strange thing is when i let it grow out i cant see through it at all. I dont understand whats goin on. People say my hair looks thin at the top but the lady that does my hair says i have good fine thin curly hair. Could you please give me some insight? thanks.

Imagine looking out your window when you’re in an airplane on a sunny day and seeing some thin, short trees. You’d probably be able to see the ground in between them. Now imagine looking out that same window on a gloomy day and seeing thick, tall redwoods. You probably won’t be able to see the ground between the trees. Now apply that logic to the hair on your head.

If that doesn’t make sense, how about this: Fine hair has less hair bulk than coarser hair, so the longer the fine hair is, the more significant will be the bulk. People with fine hair have difficulty looking full-headed, because the bulk of the hair shaft is small.