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/sci/ - Science & Math

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2840729 No.2840729 [Reply] [Original]

What are the differences? Why does sunlight = vitamin D and artifical light apparently not? Are the photons identical?

>> No.2840732

Artificial light doesn't have enough UV.

>> No.2840733

no

>> No.2840731

* Sunlight is magic and has vitamins in it
* Artificial light is made by scientists therefore it is cold, unforgiving and harmful

>> No.2840742

So can you just use uv lights for the effects of sunlight?

>> No.2840744

Why is there vitimin D in sun light?

Is the sun a flower?

>> No.2840746

>>2840742
it gives some of the effects.

>> No.2840748
File: 428 KB, 900x1203, 2006-08-30-traversing_the_luminiferous_aether.jpg [View same] [iqdb] [saucenao] [google]
2840748

You know how magnets are magnets because they have residual bits of gravity left in them, since they came out of the ground?
Solar photons are different from lightular photons because they have residual bits of nuclear fusion in them.

>But seriously, as long as your artificial light source provides the correct wavelength of UV light, you can photolyze cholesterol into vitamin D in your body. It's just that most typical lights minimize the emission of light of such high energy, because it doesn't actually light anything. Wasted power, higher electricity cost for no reason.

>> No.2840751

>>2840748
do you have a blog or something? I love the way you write

>> No.2840755

just buy some vit.d pills, they are cheap as shit and don't give you skin cancer.

>> No.2840757

For producing vitamin D, yes. With moderation, though, or you will have high chances of getting cancer or frying your skin.

>> No.2840758

Because the photons aren't the same.
A filament lightbulb has tungsten releasing a photon when an electrical current is passed through it.

The sun is mainly H and He isn't it? So different wavelengths.

Also, I'm sure it will also have something to do with the atmosphere/ozonelayer, but I'm not sure.

>> No.2840759

>>2840731
scientists have turn the sun into a death ball as they say only 15 minutes of sunlight a day is safe

>> No.2840764

>>2840759
thats 15 min of noonday sunlight, its about 3-4 hours of dawn/dusk light.

>> No.2840762

>>2840748
you forgot, they cause eyestrain, cancer and other fun things as well so most UV-sources (e.g halogens) are shielded.

>> No.2840770

>>2840762
hmm, my lamp on my table has a TV filter, what would happen if I removed it?

and I still getting UV radiation anyway? just in a small amount?

I hope I mutate and acquire super powers

>> No.2840772

Is artificial light not magnetic? How to tv tubes bend light if artificial light is not magnetic?

>> No.2840777

>>2840770
UV filter***

>> No.2840781

>>2840772
they use extra magnets

>> No.2840783

>>2840770
and you will be getting short wave radiation along with the uv and it will increase your skin cancer risk manifold.

>> No.2840790

>>2840783
but what about my super powers though

>> No.2840794

>>2840790
if you mean melanoma, then yes, you will have superpowers.

>> No.2840800

>>2840794
what kind of powers come with them

>> No.2840810

actually, technologies, imitating sunlight do exist, theyr just too expensive.

>> No.2840832

So can we artifically replicate the exact properties of sunlight so that an ultra precise instrument could not detect any difference between them on any scale?

>> No.2842216

>>2840832
Now you're just being a troll.

>> No.2842246

>>2840729
UV lights have the wrong wavelength of UV, it might stimulate melanin production but it won't generate vitamin D. There might be specialist lights for this purpose but it's cheaper to just get vitamin D as a supplment.