Your feed on all of the nerdiest, geekiest, and gamer stuff on the internet presented by Smartlilspunk Lauren and Jay.Daily and Weekly posts!
Wednesday, July 10, 2013
Check out this article!
http://www.sciencedaily.com/releases/2013/07/130710062240.htm
Sunday, July 7, 2013
My favorite Science Channels on YouTube
DNew
Vsause
SciShow
MinutePhysics
History
Please check them out!!!! They have some really good vids. Here's a fact before I go. Did you know that The Great pyramids were a stunning bright white because of the limestone it was covered in??
Saturday, July 6, 2013
Famous Formula
Sleep Loss screws Genes
Get some sleep ASAP!! All credit to DNews
Hey Geeks N Geeketts. There is some research going on at Marine Biological Section of the University of Copenhagen in Denmark. It states that starfish have eyes at the tips of their arms. When you read it comment what you think below.
Starfish have eyes at the tips of their arms
A study has shown for the first time that starfish use primitive eyes at the tip of their arms to visually navigate their environment.
Research headed by Dr. Anders Garm at the Marine Biological Section of the University of Copenhagen in Denmark, showed that starfish eyes are image-forming and could be an essential stage in eye evolution.
Photo credit: Steve L. Martin
The researchers removed starfish with and without eyes from their food rich habitat, the coral reef, and placed them on the sand bottom one meter away, where they would starve. They monitored the starfishes’ behavior from the surface and found that while starfish with intact eyes head towards the direction of the reef, starfish without eyes walk randomly.
Dr Garm said: “The results show that the starfish nervous system must be able to process visual information, which points to a clear underestimation of the capacity found in the circular and somewhat dispersed central nervous system of echinoderms.”
The starfish compound eye (red cups) is seen at the tip of the arm. Each red cup corresponds to a single optical unit, ommatidium, in an arthropod compound eye. Photo credit: Dan-Erik Nilsson, Lund University
Analysing the morphology of the photoreceptors in the starfish eyes the researchers further confirmed that they constitute an intermediate state between the two large known groups of rhabdomeric and ciliary photoreceptors, in that they have both microvilli and a modified cilium.
Dr Garm added: “From an evolutionary point of view it is interesting because the morphology of the starfish eyes along with their optical quality (quality of the image) is close to the theoretical eye early in eye evolution when image formation first appeared. In this way it can help clarify what the first visual tasks were that drove this important step in eye evolution, namely navigation towards the preferred habitat using large stationary objects (here the reef).”
Most known starfish species possess a compound eye at the tip of each arm, which, except for the lack of true optics, resembles arthropod compound eye. Despite being known for about two centuries, no visually guided behavior has ever been documented before.
Via Eureka
New Blog Alert
Hey Guys N Girls,
This is my new blog Geeks Only. I will be active and try to make posts everyday. As you can see I am a 100 percent geek . My favorite subject is Science & Math (they can't be separated in my opinion). I also like Chemistry & Biology. I hope you have a fun time with me.
Stay Geeky,
Jay
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