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Cone

Cone

1. (Science: plant biology) in gymnosperms and club mosses, a group of sporophylls arranged compactly on a central axis, in the angiosperm family Casuarina, a woody multiple fruit incorporating the bracts and bracteoles associated with the flowers.

2. (Science: physiology) The retinal cone responsible for colour vision.


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Re: About how many megapixels would human eye hold?

"The average human retina has five million cone receptors on it. Since the cones are responsible for color vision, you might suppose that this equates to a five megapixel equivalent for the human eye. But there are also a hundred million rods ...

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by hymenoptera7
Tue Jun 25, 2013 2:42 am
 
Forum: General Discussion
Topic: About how many megapixels would human eye hold?
Replies: 1
Views: 1029

Cone snail

https://www.dropbox.com/s/xb5af7hppfdmpdv/conesnail.jpg I found this critter (or hundreds of them to be exact) off the coast of Rhodes. I identified it as a cone snail, perhaps Conus ventricosus or similar. I've understood that all ...

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by biohazard
Tue Jun 05, 2012 9:47 am
 
Forum: Zoology Discussion
Topic: Cone snail
Replies: 4
Views: 4681

Retina and fetus

... retina of a human's eye. We're to name the elements of the retina marked as letters. That's what I have: a - ganglion cell b - bipolar cell c - cone cell d - rod cell But I don't have even a slightest guess with e and f.. could you help me? And regarding the other exercise: we're to complete ...

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by Juggler
Wed Oct 05, 2011 5:02 pm
 
Forum: General Discussion
Topic: Retina and fetus
Replies: 2
Views: 2856

help i.d a gastropod

It is definitely not one of the Cone shell species the Conidae family have rounded "unkeeled" shells, although it has very similar markings to the Textile cone (Conus textile) it could easy be mistaken for one, I do not know what ...

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by vk4vfx
Sun Jul 03, 2011 9:16 pm
 
Forum: Zoology Discussion
Topic: help i.d a gastropod
Replies: 3
Views: 2658

UltraBright UV transilluminator

... of intensity of lights, UV lamptube is with diverse light but LED is with a more intense and focusing light. It means the convergence of light cone angle is smaller for LEDs. LED's light flux is much higher than UV lamps. It is also hard to measure the luminance with a fair condition. The UV ...

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by swing0916
Thu Nov 11, 2010 10:49 am
 
Forum: Molecular Biology
Topic: UltraBright UV transilluminator
Replies: 17
Views: 15923
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