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Science Pictures
mipegg 
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Posted 2/14/13

netdisorder wrote:


mipegg wrote:

I just felt like adding a thread here since there seems to be a fair amount of science based topics lying around. Post a picture, why you think its interesting/pretty and what it is. EG





Have the DYI instructions for this by any chance?


DYI?
mipegg 
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Posted 2/14/13 , edited 2/14/13

I tried to look into the theory of ferrofluids once, I rapidly learned that my solid state physics is nowhere near good enough and gave up!


This is one you might be interested in:



Its a non-linear oscillating chemical reaction. Theres nothing moving in that petri-dish, noones sturred it or messed with it in any way. You just take some chemicals and plonk it in the dish and it does strange things like that.

Effectively you take some weird chemical mix which has a feedback effect in it, Say you have like chemical A,B,C which can produce say A+B->X A+C->Y B+C->Z then you could have that X+Z->A+C, or any way for the system to feedback into itself, you end up with different parts of the medium having rapidly differing densities of each chemical type, the boundaries between these different 'phases' are not static and its what you see expanding in the liquid. The mathematics you use to model these is exactly the same as that used in morphogenesis which is the process that makes biological things take shape, IE what turns a bag of cells into a fetus shaped bag of cells



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Posted 4/4/13
Recombinant rat pups expressing green fluorescent protein in their bones.


And here is a recombinant kitten expressing GFP, next to normal-cat mommy.
Sailor Candy Moderator
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Posted 10/21/13
Closed due to inactivity. It's been over 6 months and no new posts
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