Search found 30 matches

by Chroma
Wed Mar 10, 2010 8:09 am
Forum: Ecology
Topic: Salmon Farming
Replies: 0
Views: 2702

Salmon Farming

I was hoping to see if anyone has some good sites that present a balanced look at the environmental and ecological affects from open water salmon farming. There seems to be quite an opposition to the farms where I live (BC, Canada) but I have heard the science quoted by this opposition called into q...
by Chroma
Tue Mar 02, 2010 4:02 am
Forum: Zoology Discussion
Topic: White Nose Syndrome
Replies: 1
Views: 1721

Perhaps where it came from will yield some information on what kept it in check previously and could aid any effort to control this fungus. Like a lot of science you don't necessarily know until you find out.... but on the topic does anyone have any good info on this fungus? or is a wiki/google sear...
by Chroma
Sun Jan 24, 2010 7:26 pm
Forum: General Discussion
Topic: Can someone check my Radiometric Dating Problems?
Replies: 5
Views: 3696

I knew there was a way to do it using exponents...

1/16 = (1/2)^(n/5730)
ln(1/16) = ln((1/2)^(n/5730))
ln(1/16) = (n/5730) * ln(1/2)
n/5730 = ln(1/16) / ln(1/2) = 4
n = 5730 * 4 = 22,920
by Chroma
Sun Jan 24, 2010 6:11 am
Forum: General Discussion
Topic: Can someone check my Radiometric Dating Problems?
Replies: 5
Views: 3696

For Question #1: I might be over simplifying it, but 1/16 is 4 half life periods (1/2 * 1/2 * 1/2 * 1/2 = 1/16) So 4 * 5730 years = 22,920 years For Question #2: 3.9 / 1.3 = 3 Half-life periods so: 1/2 *1/2 * 1/2 = 1/8 of the potassium would remain. 1 - 1/8 = 7/8 of the potassium would have decayed ...
by Chroma
Thu Jan 21, 2010 6:22 am
Forum: Zoology Discussion
Topic: What are these?
Replies: 3
Views: 3131

Definitely a Crustacean. My guess would be a Giant Isopod (http://en.wikipedia.org/wiki/Bathynomus_giganteus), only a guess but they seem to match the size and shape.
by Chroma
Thu Jan 14, 2010 8:30 pm
Forum: Human Biology
Topic: CREATINE
Replies: 2
Views: 2287

Re: CREATINE

Directly from Wiki: Creatine is naturally produced in the human body from amino acids primarily in the kidney and liver. It is transported in the blood for use by muscles. Approximately 95% of the human body's total creatine is located in skeletal muscle.The rest is located in the brain or heart. Al...
by Chroma
Wed Jan 13, 2010 5:50 am
Forum: Evolution
Topic: Evolution tree...phylogeny---simple question
Replies: 5
Views: 4096

[ snail [ Fish [ Dinosaur + Pig ]]] If I recall correctly snails would have diverged from the other three close to the Cambrian period (~570 MYA, though likely before), and Dinosaurs arose in the Triassic (~250 MYA, sometime after) so fish would have to have diverged from the other chordates between...
by Chroma
Sun Jan 10, 2010 2:19 am
Forum: Genetics
Topic: Y-haplogroups and the «common ancestor»
Replies: 4
Views: 2554

Not sure I understand what you mean... What I meant is this common-ancestor for all Eurasian and Americans, as determined by shared variants of his Y-Chromosome, was never required to leave Africa. He would still be the common ancestor to all Eurasian and American populations if all later successful...
by Chroma
Sat Jan 09, 2010 7:32 am
Forum: Human Biology
Topic: Colour of veins
Replies: 5
Views: 8972

Re: Colour of veins

Deoxygenated blood is actually a blue color, its just that you never see it unless its in the veins through the skin. If you were to cut yourself then the blood that pours out, even from a vein, is quickly saturated with oxygen from the atmosphere as the Hemoglobin is so efficient at absorbing it. I...
by Chroma
Sat Jan 09, 2010 1:15 am
Forum: Genetics
Topic: Y-haplogroups and the «common ancestor»
Replies: 4
Views: 2554

Re: Y-haplogroups and the «common ancestor»

It would mean that all the males that were born outside of Africa were his descendants. This could mean many others, male and female, left along with him; and that these others also have descendants (containing genes from all the other chromosomes), but all Eurasians/North Americans (Non-Africans so...
by Chroma
Tue Jan 05, 2010 9:33 pm
Forum: Evolution
Topic: How to Obtain Dinosaurs
Replies: 12
Views: 19386

Re: How to Obtain Dinosaurs

I don't mean to dismiss your post as a rant but it didn't seem to be as coherent as you might hope given the length... Would you be able to post something more organized and concise? You obviously put a great deal of time into that but it's extremely hard to follow... On the bright side it reminds m...
by Chroma
Sat Jan 02, 2010 4:52 pm
Forum: Ecology
Topic: Does it really matter?
Replies: 33
Views: 41663

Re: Does it really matter?

By no means was that meant to be from a human's perspective, instead it was meant to be from a view of the Earth as a living being. In general I'd avoid thinking as the world as a living being... From everything I've been able to gather Gaia Theory is more applicable the more loosely you apply the ...