The Official Science Thread

Originally Posted by Andy2108

1000

Great thread cowmoo. Whats your real name?

Bos primigenius

Originally Posted by mash20

As I expected, neutrino's don't go faster than the speed of light: http://news.sciencemag.org/sciencein...es-faster.html

I read that last night and was severely disappointed, but there's still hope...maybe
http://profmattstrassler.com/2012/02...a-in-question/

Originally Posted by TayloMade[07]

Bos primigenius

I had to google, but then I laughed

I tried to be witty.

Light will soon replace electricity in our circuits, and things should get a lot faster.
http://www.physorg.com/news/2012-02-...c-circuit.html

The technological world of the 21st century owes a tremendous amount to advances in electrical engineering, specifically, the ability to finely control the flow of electrical charges using increasingly small and complicated circuits. And while those electrical advances continue to race ahead, researchers at the University of Pennsylvania are pushing circuitry forward in a different way, by replacing electricity with light.

---

3D Chips using optical interconnects

http://www.physorg.com/news/2012-02-...rconnects.html

The ability to manufacture photonic interconnect components -- modulators, detectors, waveguides, and filters -- on silicon substrates has finally been realized, and these optical interconnect structures show great potential for intrachip and interchip applications. HP Labs is studying how this shift to light-based interconnects may revolutionize the way computers are built. Moray McLaren of HP will present his findings at the Optical Fiber Communication Conference and Exposition/National Fiber Optic Engineers Conference, March 4-8 in Los Angeles.

Originally Posted by cowmoo32

I read that last night and was severely disappointed, but there's still hope...maybe
http://profmattstrassler.com/2012/02...a-in-question/

I'm at a Dark Matter conference right now, and I was talking with people about this and I was told today exactly what the article says (that there are in fact 2 problems, one pushing the result one way and the other pulling it in the opposite direction). I just now had a chance to come here and post this, but apparently the news is already out. It's amazing how fast word (and rumors) spread...

Originally Posted by mash20

I'm at a Dark Matter conference right now, and I was talking with people about this and I was told today exactly what the article says (that there are in fact 2 problems, one pushing the result one way and the other pulling it in the opposite direction). I just now had a chance to come here and post this, but apparently the news is already out. It's amazing how fast word (and rumors) spread...

So there is still a chance they're superluminal?

Well, technically ya, but I wouldn't bet on it....

Originally Posted by GRIFFIN

This is the first time I see Grif post something that is NOT NWS.

And now... An oscillating nanosecond for your viewing pleasure. I kid.

http://www.falstad.com/ripple/

One step closer to 100% optical internet
http://www.physorg.com/news/2012-02-...ry-device.html

To improve transmission speeds, the Internet has transitioned over the years from one using copper to fiber optic cabling. Unfortunately, this has caused a bottleneck to occur where the light signals meet with electronic circuitry. Researchers have been working for years on a way to make routers, and most particularly, their memory, all optic, to avoid having to convert the signals at all. Now, it appears one such group, NTT, a Japanese telecommunications company, has figured out a way to do it. They describe their work in a paper published in Nature Photonics.

A star exploded a couple hundred years ago and we're just now seeing the results. i ween, any idea why this thing isn't expanding in a sphere? Someone on reddit just said 'rotation of the star' but that makes zero sense.

Originally Posted by cowmoo32

Unless I am mistaken, this woman was an Admiral (General ) in the Navy, in charge of their nuclear sub program. She was still in the Navy in her 80's.

It is interesting to see someone at her level teaching.

It makes me wonder who was in the audience.

that star is cool.

Originally Posted by cowmoo32

A star exploded a couple hundred years ago and we're just now seeing the results. i ween, any idea why this thing isn't expanding in a sphere? Someone on reddit just said 'rotation of the star' but that makes zero sense.

I'm not sure. A total guess would have me leaning towards the magnetosphere of the star having affect on the trajectory of the explosion. But .

Originally Posted by cowmoo32

A star exploded a couple hundred years ago and we're just now seeing the results. i ween, any idea why this thing isn't expanding in a sphere? Someone on reddit just said 'rotation of the star' but that makes zero sense.

I did some research on planetary nebulae when I was in undergrad. The prevailing theory (from what I remember) is that a red giant creates the nebula through pulsations which emits layers of the star. Then, the remnant of the star (a white dwarf probably) ejects jets of particles from the poles of the star as matter accretes onto it. The jets then push on the nebula and creates the lobe structures you see. The rotation of the remnant can cause the jets to sweep out a larger solid angle creating larger lobes.

EDIT: the central star causing this can also be a neutron star or a binary star, where the compact companion (whate dwarf or neutron star) accretes matter from the larger star

Originally Posted by TayloMade[07]

that star is cool.

It reminds me of something that they would have used in the original Star Trek.
Like something that might want to swallow them up or something that they might want to destroy with a photon torpedo.

Originally Posted by mash20

I did some research on planetary nebulae when I was in undergrad. The prevailing theory (from what I remember) is that the star undergoes a supernova and creates the nebula. Then, the remnant of the star (a neutron star probably) ejects jets of particles from the poles of the star as matter accretes onto it. The jets then push on the nebula and creates the lobe structures you see. The rotation of the remnant can cause the jets to sweep out a larger solid angle creating larger lobes.

Ok, so it explodes and creates the nebula, got that. Then the neutron star shoots jets of particles out, I'm good there. And then the jets define where the gases can go? Like a line rotating off-axis to form a cone?