If you’d be so kind, how far do you have to get away from a flat mirror to show your whole image?
Comment on I'm going insane
unexposedhazard@discuss.tchncs.de 1 day agoNah if u step back far enough it should show your whole body. The only exception being if its angled weirdly or if its not flat but curved in a special way.
bleistift2@sopuli.xyz 1 day ago
unexposedhazard@discuss.tchncs.de 1 day ago
Depends on the size of the mirror and how far it is off the ground. If its a full sized 2m tall mirror then the min distance is obviously zero. If its a small bathroom sink mirror that doesnt go down to the floor then there is no distance far enough and being close is actually better.
Tar_alcaran@sh.itjust.works 1 day ago
Uhhh no, that’s not how angles work.
The further you get away from a mirror, the “further away” the reflection is. You will never see your whole body in a hand mirror, even if you put it on the moon.
candybrie@lemmy.world 1 day ago
The reflection being further is the point? The further away something is, the smaller it looks, so the less of your field of view it takes up, the more you can see of it.
If I put my hand on my eye, I can’t see much of it. If I pull my hand back, I can see more of it. If I put a mirror on my eye, I can only see my eye. If I put it back, I can see my face because the reflection of my face is further (i.e. smaller).
I’m very confused what you’re trying to say.
renzev@lemmy.world 1 day ago
Bassman1805@lemmy.world 1 day ago
Nope, three geometry actually works out such that it doesn’t matter your distance from the mirror, only how tall the mirror is and how high it’s mounted.
A mirror that is as half as tall as your, mounted at head height, will show your white body regardless of how far away you are from it. TECHNICALLY, the bottom edge must be halfway between your eyes and feet, and the top edge must be halfway between your eyes and top of head.
Ookami38@sh.itjust.works 1 day ago
Well at least you didn’t call my body pasty white, I haven’t been to the lake as much as I wanted this year.
Joking aside, I believe vsauce had a short about this, was useful to get a visual.
Tar_alcaran@sh.itjust.works 1 day ago
As long as it’s perfectly flat.