Sunshine

[Queso]

What are some of the ... things that are emitted from the sun?

I want to know which of those we, as humans, are susceptible to.

 

For instance, when I sit out in the sun,

what am I absorbing, what am I reflecting? What is passing through me?

[Jay-qu]

The sun emits radiation on a very wide range of wavelengths, but the atmosphere blocks certain wavelengths so we only get the visible light and small amounts of other stuff.

 

The sun also lets out the solar wind that is a constant stream of particles, the earths magnetic field prevents these from getting down to us.

 

Neutrinos from the fission of hydrogen in the suns core are passing through you, at every moment

[Queso]

What wavelengths reach us?

[jackson33]

you might like a quick trip to Electromagnetic Energy on the web...

 

this is measured by wavelengths and frequencies and much of it reaches the earth. not only from our sun but many sources.

[Tarantism]

i remember hearing somewhere that we aquire vitamin D from sunlight. i dont know if the source is credable however.

[jackson33]

i remember hearing somewhere that we aquire vitamin D from sunlight. i dont know if the source is credable however.

 

this is the proverbial double edged sword; our body when hit with ultra violate rays, will produce Vit-D. UVR however is also the bad rays which gets through or not stopped by ozone. ie, we produce and not sent by the sun...

[Mercedes Benzene]

I've always loved this fact, and I've heard multiple facts similar to this, but here's what wikipedia has to say:

 

"Most neutrinos which pass through the Earth emanate from the sun and more than 50 trillion solar electron neutrinos pass through the human body every second."

[Tarantism]

this is the proverbial double edged sword; our body when hit with ultra violate rays, will produce Vit-D. UVR however is also the bad rays which gets through or not stopped by ozone. ie, we produce and not sent by the sun...

 

ooooh. thats interesting...:hihi:

[Boerseun]

Funny enough, at midnight, with the sun on the other side of the world, the same number of sun-generated neutrinos pass through you as at noon! It passes straight through Earth as if there was nothing!

[Tarantism]

Funny enough, at midnight, with the sun on the other side of the world, the same number of sun-generated neutrinos pass through you as at noon! It passes straight through Earth as if there was nothing!

thats really cool too. i remember reading in a book that there was a chemical called melatonin that your body can only produce at night. i suppose that this has nothing to do with UVR's then. can any one tell me a bit more about them?

[Queso]

What about the wavelengths?

 

What spectrum of frequencies?

[HappytheStripper]

Wow there is some cool inforamtion being imparted - im impressed with the level of knowledge within these forums.. I learn something new every day

 

Ashley

[Jay-qu]

More specifically it is the UVB which does the most damage and also is the source of vitamin D. Early sun blocks blocked out UVB letting your skin still get damaged by UVA without the health benefits on the Vitamin D.

 

Here is a pic orb that shows to what extent all the wavelengths are transmitted :hihi:

http://www.udel.edu/Geography/DeLiberty/Geog474/spectrum.jpg

[Queso]

Perfect, thank you.

 

Now...what lies beneath that spectrum of wavelengths?

What's far to the left?

 

When do audible frequencies occur?

[jackson33]

Perfect, thank you.

 

Now...what lies beneath that spectrum of wavelengths?

What's far to the left?

 

When do audible frequencies occur?

 

radio waves, the lowest frequency or if you like the longest waves are sent out from matter in space. by way of special radio telescopes they give an idea what created the waves. though one length may be a mile long, as all EME, they travel at C or 186,200 miles per second.

 

nothing is said to be below them on this EM Scale. however in my OPINION, there may well be and we have no way to understand. i have the same view for beyond micro waves, but this is argumentative and generally gets a quick negative response...so don't quote my opinion...

[Jay-qu]

Audiable frequencies are not EMR and dont come from the sun - sound cannot propogate through space.

 

But our ears can here in the range of 20Hz-20kHz frequencies.

[Boerseun]

When do audible frequencies occur?

The Electromagnetic spectrum is waves of photons. You can't hear light. Sound, on the other hand, is pressure waves in a carrying medium. And they operate on a completely different scale - the two are completely non-related.