Ommatidium
The compound eyes of arthropods like insects, crustaceans and millipedes are composed of units called ommatidia (singular: ommatidium). An ommatidium contains a cluster of photoreceptor cells surrounded by support cells and pigment cells. The outer part of the ommatidium is overlaid with a transparent cornea. Each ommatidium is innervated by one axon bundle (usually consisting of 6-9 axons, depending on the number of rhabdomeres) and provides the brain with one picture element. The brain forms an image from these independent picture elements. The number of ommatidia in the eye depends upon the type of insect and ranges from just a handful in the primitive Archaeognatha and Thysanura to around 30 thousand in larger Anisoptera dragonflies and in some Sphingidae moths.
Ommatidia are typically hexagonal in cross section and approximately ten times longer than wide. The diameter is largest at the surface, tapering toward the inner end. At the outer surface there is a cornea, below which is a pseudocone that acts to further focus the light. The cornea and pseudocone form the outer ten percent of the length of the ommatidium.
Podcasts:
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by Linkin Park
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by Fabolous
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by Ghostface Killah
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by Busta Rhymes
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by Umberto Tozzi
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by ToTo
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by John P. Kee
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by Hezekiah Walker
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by Catherine Corelli
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by New Life Community Choir
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by Teddy Thompson
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by Juice
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by Dj Shadow
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by Madita
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by Jeremy Spencer
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by Overdust
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by Ray Smith
We Made It
by: Linkin Park[Chester Bennington]
Together we made it
We made it even though we had our backs up against the wall
[Busta Rhymes:]
See ah niggas i survived the worst but my life is glorious
Betta know that i leaped every hurdle and i'm so victorious
Take a look, I'm a symbol of greatness now call a nigga Morpheus
As force securing the win and I believe I'm so notorious
You know that I've been buying my bread even though we rapping now (yes)
We use to live on the strip and you see a nigga higher level tramping now
Superceded everyone of my middle struggles and
Failure never ever has been an option
A nigga paper long like we was on the trap and we bout ta take the hood shoppin'
Get it!
[Chorus: Chester Bennington] (Busta Rhymes) *Mike Shinoda*
Together we made it (you see we did it niggas)
We made it even though we had our backs up against the wall (c'mon)
Forever we waited (haha!)
And they told us we were never going to get it
but we took it on the road (to the riches)
on the road (to the ghetto)
on the roooooad (in the projects to this bangin instrumental)
on the road (ride with me) *yeah, yeah*
on the road (you come and get it) *yeah, yeah*
on the roooooooad *yeah, yeah, yeah, yo!*
[Mike Shinoda:]
When it all got started we was steadily just getting rejected
And it seemed like nothing we could do would ever get us respected
At best we were stressed and the worst they probably said we're pathetic
Had all the pieces to that puzzle just no way to connect it
And I was fighting through every rhyme tightening up every line
Never resting the question if I was out of my mind
And it finally came time to do it or let it die
So put the chips on the table and told 'em to let it ride
Sing it!
[Chorus: Chester Bennington] (Busta Rhymes)
Together we made it (you see we did it niggas)
We made it even though we had our backs up against the wall (c'mon)
Forever we waited (haha!)
And they told us we were never going to get it
but we took it on the road (to the riches)
on the road (to the ghetto)
on the roooooad (in the projects to this bangin instrumental)
on the road (ride with me)
on the road (you come and get it)
on the roooooooad
[Busta Rhymes:]
Look in case you misunderstand exactly what I'm building
Shit that I could leave for my children (children) children (children)
Now I only wake up with a smile to see how far I've come
Fighting for sales on a strip to get the hustle from
From nights in jail on a bench using my muscles son
To counting money like Dre and Jimmy or Russell One
But now I live what I dream you see we finally did it
Let's make a toast to the hustle regardless how you did it
Sing it
[Chorus: Chester Bennington] (Busta Rhymes)
Together we made it (you see we did it niggas)
We made it even though we had our backs up against the wall (c'mon)
Forever we waited (haha!)
And they told us we were never going to get it
but we took it on the road (to the riches)
on the road (to the ghetto)
on the roooooad (in the projects to this bangin instrumental)
on the road (ride with me)
on the road (you come and get it)