Atheists who love Science!

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Atheists who love Science!

A group for science enthusiasts of all types -- professionals, amateurs, students, anybody who loves science.

Website: http://www.thinkatheist.com/group/science
Members: 923
Latest Activity: on Wednesday

Discussion Forum

CuriosityStream, anyone?

Started by Pope Beanie. Last reply by Pope Beanie on Wednesday. 1 Reply

Neanderthals used fire in caves:

Started by JadeBlackOlive. Last reply by Unseen Jun 8. 8 Replies

Fossil Dog

Started by JadeBlackOlive. Last reply by Unseen Jun 8. 13 Replies

Pre-Clovis civilization in Florida

Started by JadeBlackOlive. Last reply by Belle Rose May 15. 4 Replies

Teeth vs. Tools

Started by JadeBlackOlive. Last reply by JadeBlackOlive Apr 28. 2 Replies

‘Trickle of food’

Started by JadeBlackOlive Apr 15. 0 Replies

Diet affects the evolution of birds

Started by JadeBlackOlive Apr 14. 0 Replies

How Dinosaurs Grew From Hatchlings to Adults

Started by JadeBlackOlive. Last reply by JadeBlackOlive Apr 6. 18 Replies

Think your DNA is all human?

Started by JadeBlackOlive. Last reply by SteveInCO Mar 27. 9 Replies

Small, Brainy T-Rex Discovered

Started by JadeBlackOlive Mar 14. 0 Replies

Fossil analysis pushes back human split

Started by JadeBlackOlive. Last reply by Reg The Fronkey Farmer Mar 11. 3 Replies

Mysterious cosmic radio bursts found to repeat

Started by JadeBlackOlive. Last reply by JadeBlackOlive Mar 3. 2 Replies

Jawless fish brains

Started by JadeBlackOlive. Last reply by JadeBlackOlive Feb 16. 4 Replies

Comment Wall

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Comment by Sydni Moser on October 11, 2010 at 9:21am


Earth teems with a staggering variety of animals, including 9,000 kinds of birds, 28,000 types of fish, and more than 350,000 species of beetles alone.

What explains this explosion of living creatures-1.4 million different species discovered so far, with perhaps another 50 million more to go? The source of life’s endless forms was a profound mystery until Charles Darwin’s revolutionary idea of natural selection, which he showed could help explain the gradual development of life on earth.

But Darwin’s radical insights raised as many questions as they answered. What actually drives evolution and turns one species into another? And how did we evolve? On Charles Darwin’s 2009 bicentennial, and the 150th anniversary of the publication of On the Origin of Species, NOVA reveals answers to the riddles that Darwin couldn’t explain.

Stunning breakthroughs in a brand new science-nicknamed evo devo – are linking the enigma of origins to another of nature’s great mysteries, the development of an embryo. To explore this exciting new idea, NOVA takes viewers on a journey from the Galapagos Islands to the Arctic, and from the Cambrian explosion of animal forms half a billion years ago to the research labs of today.

Here scientists are finally beginning to crack nature’s biggest secrets at the genetic level. And, as NOVA shows in this absorbing detective story, the results are confirming the brilliance of Darwin’s insights while exposing clues to life’s breathtaking diversity in ways he could scarcely have imagined.

WATCH the Full Documentary HERE:
Comment by Sydni Moser on October 7, 2010 at 7:06pm
Serotonin Necklace - For Happiness - with link chain


Molecularmuse's Shop
As a scientist-turned-artist, I've chosen to commemorate molecules that are both aesthetic and have functions that suggest a symbolic meaning. I believe that, not only are these molecules beautiful, they are relevant symbols for our modern world.

Hey, there's a recent article about my jewelry in the San Francisco Chronicle! http://tinyurl.com/y9v8sbq

A percentage of proceeds during the month of September will be donated to the Coral Reef Alliance, which protects and preserves coral reefs through grassroots methods.

Check Out His Other Items here:

http://www.etsy.com/listing/57199395/serotonin-necklace-for-happine...

I'm a proud member of EcoEtsy, CCCOE, and MSOE, the Mad Scientists of Etsy.
Comment by Pope Beanie on October 7, 2010 at 3:35pm
It's really equally about the sun's pull, btw. They're saying that weather changes correlate with moon phases--which are global--and not just due to the local, twice-daily lunar tidal effect. The alignments of sun + moon cause the moon phases (independent of the earth's daily rotation), and it only seems to be more of a moon than sun thing because the moon phase is such an obvious visual cue. (Ha, I'm having a hard time explaining this!)

If the correlation between moon phase and weather is only 1% or 2% at most, then it's hardly even worth knowing about (in terms of predicting local weather). How my girlfriend(s) and I felt during a full moon in the park and the fact that my dog howls at it tell me that the psychological effect of phases is even more interesting. :)
Comment by Matt Coulthurst on October 5, 2010 at 5:55pm
I know this article is couple of years old, but I still think it is very cool.

Calculating the speed of light at home

If we'd been allowed to go to the girls' school* to do physics experiments like this I'd probably be a science geek instead of IT.

*I went to a single-sex high school. The boys' school didn't have kitchens at the time so any 'sissies' had to go to the girls' college for home economics. I always wondered what was 'sissy' about being one of the only boys available to 1500 girls.
Comment by Sydni Moser on September 28, 2010 at 9:44am
Wonderful hour long documentary that is well worth your time...

Check HERE to find other the 5 other parts of this program:
Comment by Don on September 17, 2010 at 11:21am
Adriana, on the censoring of science, see this piece today on PZ Myers's blog:

http://scienceblogs.com/pharyngula/2010/09/gagging_the_mississippi....

Scientists these days are having a hard enough time communicating the truth about sensitive (anti-corporate interest) issues without this kind of thing. In academia, no less!
Comment by Sydni Moser on September 7, 2010 at 5:08pm
Comment by Sydni Moser on September 7, 2010 at 4:38pm


See Stephen Hawking this Friday (September 10) in a one-on-one interview live on "Larry King Live" at 9 p.m. ET only on CNN.
Comment by Sydni Moser on September 5, 2010 at 6:38pm

ScienceMagazine | September 03, 2010
California Academy of Sciences: Human Evolution -- Tool use by early humans started much earlier. The Academy's Zeray Alemseged reveals his latest discovery: human stone tool use dating back to 3.4 million years ago. Small-brained human ancestors used stone tools to whack into large mammals some 800,000 years earlier than previously thought.
• Science Magazine on Facebook: http://tinyurl.com/ScienceFacebook
• Secular Humanism on Facebook: http://tinyurl.com/HumanismFacebook

- The earliest known evidence for stone tool use and meat eating among early humans is found.
- The evidence -- butchered, fossilized bones -- dates to roughly 3.4 million years ago.
- It's believed the ancestor Australopithecus afarensis (to which "Lucy" belongs) used the tools.
http://news.discovery.com/archaeology...

BBC News: Tool-making and meat-eating began 3.5 million years ago
Researchers have found evidence that hominins - early human ancestors
used stone tools to cleave meat from animal bones more than 3.2 million years ago. That pushes back the earliest known tool use and meat-eating in such hominins by more than 800,000 years.

Bones found in Ethiopia show cuts from stone and indications that the bones were forcibly broken to remove marrow. The research, in the journal Nature, challenges several notions about our ancestors' behaviour.

Previously the oldest-known use of stone tools came from the nearby Gona region of Ethiopia, dating back to about 2.5 million years ago. That suggests that it was our more direct ancestors, members of our own genus Homo, that were the first to use tools.

But the marked bones were found in the Dikika region, with their age determined by dating the nearby volcanic rock -- to between 3.2 million and 3.4 million years ago.

A battery of tests showed that the cuts, scrapes and scratches were made before the bones fossilised, and detailed analysis even showed that there were bits of stone lodged in one of the cuts.
http://www.bbc.co.uk/news/science-env...

Calacademy's 'Science in Action' strives to make science accessible for everyone and discuss its relevance in our everyday lives. We bring you science news through media screens and live chats on the museum floor, the Science Today website, podcasts, and monthly Nightlife programming. We gather and disseminate content through our partners, local programs, other media and Academy staff.
http://www.calacademy.org/sciencetoday/
Comment by Sydni Moser on September 2, 2010 at 4:03pm


Did Our Ancestors Practice Cannibalism?
By Margaret Aprison
Posted September 2, 2010
Moments of Science

Cannibalism may seem like a completely out of the ordinary practice today. Yet, scientists have discovered evidence that over one million years ago, our ancestors may have been cannibals.

Discovering Bones
A team, led by archaeologist Eudald Carbonell of Spain’s University of Rovira and Virgil, examined ancient bones left in a Spanish cave.

The bones had cut marks and butchering remains on them. This suggests that cannibalism could have been a popular activity.

Who Were Our Ancestors?
Scientists have learned that our “archaic” human ancestors, also known as Homo antecessor, possessed a brain two-thirds the size of modern humans.

The bones also suggest that cannibalism may have been just another way our ancestors stayed alive during famines. The study’s author suggests that this is one of the oldest documented cases of cannibalism.

Read More:

* Cannibal cavemen of Spain uncovered (USA Today)
* Cultural Cannibalism as a Paleoeconomic System in the European Lower Pleistocene (PDF- University of Chicago)

Related Articles:


Eat Thy Neighbor

Why Isn’t Cannibalism More Popular?
 

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