Anonymous 01/18/25(Sat)16:15:45 | 32 comments | 4 images
10xnci-3895501791
If white surfaces reflect all light they receive, why aren't all white surfaces mirrors?
Anonymous 01/18/25(Sat)16:18:07 No.16555563
>>16555556
High albedo does not imply perfect scattering. White surfaces can be very rough and reflect light in all directions. Mirrors are smooth, so the scattering is nice and regular. The way mirrors are made is by covering a thin coat of silver with glass. Molten metals are very smooth, obviously.
Anonymous 01/18/25(Sat)16:20:20 No.16555568
>>16555563
I rubbed the wal of my room with sandpaper and it didn't become a mirror
Anonymous 01/18/25(Sat)16:22:24 No.16555574
>>16555568
Cool. So it's still not smooth enough. At least not as smooth as your brain.
Anonymous 01/18/25(Sat)16:24:16 No.16555577
Anonymous 01/18/25(Sat)16:36:29 No.16555599
>>16555574
you are a dumbass. no matter how smooth you make chalk, it will never become a mirror.
Anonymous 01/18/25(Sat)16:41:16 No.16555613
>>16555599
i could probably see my reflection in your brain though
Anonymous 01/18/25(Sat)16:41:50 No.16555614
>>16555599
Yeah, because it's made of a material that is extremely hard to smooth out. It's brittle. Metal can be molten and it naturally gets smoothed by gravity. You can jerk off a piece of chalk with sandpaper all you want, but it's not going to refine all those microscopic cavities that scatter light in random directions.
Anonymous 01/18/25(Sat)16:46:40 No.16555624
>>16555614
>You can jerk off a piece of chalk with sandpaper all you want
which is weird since it's basically metal with some carbon and oxygen.
Anonymous 01/18/25(Sat)16:55:49 No.16555631
>>16555624
>since it's basically metal with some carbon and oxygen.
>t. I never passed high school chemsitry
Anonymous 01/18/25(Sat)16:57:19 No.16555632
>>16555563
also, even if white surfaces can't show my face because the light travels in different directions, it should at least change color to the color of my face.
the fact that it keeps being white when you put something of another color next to it proves that white isn't unpolished mirror
Anonymous 01/18/25(Sat)16:58:42 No.16555635
>>16555632
>it should at least change color to the color of my face
Does your face glow? Do you look at chalk in complete darkness? Hello? CIA niggers?
Anonymous 01/18/25(Sat)17:00:02 No.16555636
>>16555635
according to you, my face is reflecting light from the sun or whatever. get your own facts straight
Anonymous 01/18/25(Sat)17:01:05 No.16555638
br13w8xw9zz71
>>16555631
calcium is literal metal anon. chalk is made out of it.
Anonymous 01/18/25(Sat)17:04:56 No.16555644
>>16555638
No shit. Go read about chemical bonds and how they affect the physical structure of materials. Ionic vs covalent bonds. You know, high school chemistry curriculum.
Anonymous 01/18/25(Sat)17:09:44 No.16555649
>>16555644
>autism overload
it was a joke you nerd
Anonymous 01/18/25(Sat)17:39:29 No.16555672
>>16555649
>I was merely pretending to be retarded it was just a prank bro
Anonymous 01/18/25(Sat)20:28:43 No.16555835
>>16555672
why are you so angry?
Anonymous 01/19/25(Sun)06:46:36 No.16556096
bump
Anonymous 01/20/25(Mon)13:14:30 No.16557680
>>16555644
metals have neither ionic nor covalent bonds
Anonymous 01/22/25(Wed)11:43:11 No.16560095
>>16555556
mirror surfaces need to be specular and have lustre.
Anonymous 01/22/25(Wed)13:11:55 No.16560166
>>16555556
White surfaces diffuse light by absorbing and re-emitting photons but does so evenly across all visible wavelengths, reflective surfaces like mirrors and metals have an electron shield that bounces photons along the normal of the surface causing them to have that clear reflection in the unaltered color as the inbound light.

Any sufficiently smooth surface will have a dull mirror like reflection as the return vector is similar but you can never polish a surface that absorbs light such that it has a clear mirror like reflection from any angle. You can get a very mirror like reflection at glancing angles due to the fresnel effect tho.
Anonymous 01/22/25(Wed)13:14:33 No.16560170
Anonymous 01/22/25(Wed)13:19:15 No.16560178
I guess.
Anonymous 01/22/25(Wed)18:15:21 No.16560529
Anonymous 01/22/25(Wed)18:26:40 No.16560545
>>16557680
Metals form ionic and covalent bonds with nonmetals, as is the case in chalk. They typically form metallic bonds with metals, but even that isn't a rule, gallium forms covalent bonds with metals.

The other Anon is right, you retards need to pick up a high school chemistry textbook.
Anonymous 01/22/25(Wed)18:49:02 No.16560576
bonds
>>16557680
Ionic compounds are bonds combining metals + non-metals..

Covalent-molecules are bonds combining non-metals + non-metals.
Anonymous 01/22/25(Wed)19:04:13 No.16560590
Anonymous 01/22/25(Wed)19:13:59 No.16560602
>>16560576
Gross, primary school tier oversimplification. At least read up on electronegativity, this is also an oversimplification but worthy of at least high school.
Anonymous 01/22/25(Wed)19:19:45 No.16560609
>>16560602
Two types of bonds, both specifically dependent on what is being bonded..

>Electronegativity
As long as the shared valency orbital totals a stable 8 electrons, who gives a fuck.

Why are you big noting yourself, is your dick small?
Anonymous 01/22/25(Wed)20:59:57 No.16560715
>>16560166
This. Fully reflective surfaces like polished metals have electromagnetic properties which repeal photons at the very top layer of atoms before they can enter the material at all.

Dielectric non conductive surfaces no matter how polished still have the photons travel into the top layers of the material get absorbed there and is scattered and remitted internally til it eventually find it's way out traveling in some direction other than that which it entered according to the sort of probability distribution >>16560529 shows. That's why you can't polish a white surface into a perfect mirror, if something appears white its not reflecting light; it's scattering light.
Anonymous 01/22/25(Wed)21:04:45 No.16560720
>>16555632
>>16555636
White things do exactly that. Stand next to a white wall under a sunny window and the light from your shirt will make the wall reflect that color.
Anonymous 01/22/25(Wed)21:25:12 No.16560741
>>16555568
Skill issue.