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Old 05-21-2012, 09:43 PM  
Fish Fish is online now
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Science is Cool....

This is a repository for all cool scientific discussion and fascination. Scientific facts, theories, and overall cool scientific stuff that you'd like to share with others. Stuff that makes you smile and wonder at the amazing shit going on around us, that most people don't notice.

Post pictures, vidoes, stories, or links. Ask questions. Share science.

This is in support of the Penny 4 NASA project. If you enjoy anything you learned from this thread, consider making a donation and signing the petition.

http://www.penny4nasa.org/

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Last edited by Fish; 01-07-2013 at 08:55 AM..
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Old 07-25-2016, 04:50 PM   #2416
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Where is all of the great new info we were supposed to be getting about Jupiter?

I read about some of what they expected to find a couple days before the craft entered its orbit, like substances that exist as a gas/liquid/metal all at the same time
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Old 07-25-2016, 04:50 PM   #2417
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That's a freaky picture. I feel like it's about to fall on us.

I always pictured the moon being bigger than that. Not tons bigger, but a bit bigger.
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Old 07-25-2016, 04:55 PM   #2418
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Quote:
Originally Posted by eDave View Post
This pic is real:



Moon passing between Nasa's Deep Space Climate Observatory and Earth.
Great picture, except for that cloud demon that is about to take a bite out of our Moon.
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Old 07-25-2016, 08:43 PM   #2419
Fish Fish is online now
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Quote:
Originally Posted by Easy 6 View Post
Where is all of the great new info we were supposed to be getting about Jupiter?

I read about some of what they expected to find a couple days before the craft entered its orbit, like substances that exist as a gas/liquid/metal all at the same time
Jupiter is currently 390,674,710 Miles away. Chill the **** out bro.
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Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.
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Old 07-25-2016, 08:55 PM   #2420
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Quote:
Originally Posted by Rain Man View Post
That's a freaky picture. I feel like it's about to fall on us.

I always pictured the moon being bigger than that. Not tons bigger, but a bit bigger.
You have no idea, that offers no perspective regarding distance.

If you took that picture and envisioned the earth as a basketball and the moon as a golf ball, they'd be about 25 yards or so apart right there.
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Old 08-01-2016, 01:01 PM   #2421
Fish Fish is online now
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Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.
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Old 08-01-2016, 01:02 PM   #2422
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Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.Fish is obviously part of the inner Circle.
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Old 08-01-2016, 04:09 PM   #2423
Baby Lee Baby Lee is offline
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Originally Posted by Fish View Post
[299*792*458 m/s] [VI] [dQ-dpV] did there.
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Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.Baby Lee is obviously part of the inner Circle.
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Old 08-05-2016, 08:19 PM   #2424
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Happy birthday Curiosity!

NASA's nuclear powered robot is currently 69.71 million miles away, singing itself happy birthday....



More: https://curiosity.com/memes/every-ye...y-nasa-goddard
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Old 08-16-2016, 01:03 PM   #2425
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Old 08-16-2016, 01:37 PM   #2426
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Quote:
Originally Posted by eDave View Post
This pic is real:



Moon passing between Nasa's Deep Space Climate Observatory and Earth.
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Old 08-26-2016, 11:57 AM   #2427
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Physicist Creates Lab-Sized "Black Hole"

http://www.popularmechanics.com/scie...ed-black-hole/

Black holes swallow up everything, and nothing escapes. This property, the most iconic characteristic of these mysterious space phenomena, had its first major challenge this week when Techonion professor Jeff Steinhauer posted the results of an experiment. He simulated a black hole in the lab.

The idea that perhaps black holes do let some particles escape has been around for a long time now, since 1974 when Stephen Hawking's calculations using quantum methods showed that black holes actually "radiate" particles back into outer space, and eventually disappear entirely. Due to the difficulty of calculating this delicate radiation through the depths of space, Hawking Radiation has remained a theory in the 42 years since, but Steinhauer's new experiment may bring it closer than ever to being proven.

In his experiment, the Israeli physicist created a simulated "black hole" capable of sucking in sound. To do this, Stenhauer shot a laser composed of rubidium atoms through an environment cooled to almost absolute zero. The atoms were moving faster than the speed of sound, making it difficult for sound to make its way through the stream.

"It's like trying to swim against the river," Steinhauer said. "If the river is going faster than you can swim, you go backwards, even though you feel like you're going forward." This means that part of the sound wave is pushed out of the "black hole," defying the scientific consensus on what may happen in real black holes.

The theory of Hawking Radiation is based on "virtual particles," the analogues of particles like photons described by quantum mechanics. Based on Steinhauer's experiment, it's possible that in a black hole, a photon may be sucked in while its partner virtual particle is radiated out into space. This is what Hawking's theory proposes. "What I saw suggests that a real black hole might emit something," Steinhauer said. If this is true, and Hawking Radiation is proven to exist, Stephen Hawking may finally win his first Nobel Prize for his work 40 years ago.

Steinhauer's paper is yet to be published, and is up on the pre-publishing platform arXiv.org right now for peer review. The initial reactions have been both positive and skeptical.

"The experiments are beautiful," physicist Silke Weinfurtner from the University of Nottingham told The Telegraph. "Jeff has done an amazing job, but some of the claims he makes are open to debate. This is worth discussing."
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Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.Donger is obviously part of the inner Circle.
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Old 08-26-2016, 06:02 PM   #2428
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Quote:
Originally Posted by Donger View Post
Physicist Creates Lab-Sized "Black Hole"

http://www.popularmechanics.com/scie...ed-black-hole/

Black holes swallow up everything, and nothing escapes. This property, the most iconic characteristic of these mysterious space phenomena, had its first major challenge this week when Techonion professor Jeff Steinhauer posted the results of an experiment. He simulated a black hole in the lab.

The idea that perhaps black holes do let some particles escape has been around for a long time now, since 1974 when Stephen Hawking's calculations using quantum methods showed that black holes actually "radiate" particles back into outer space, and eventually disappear entirely. Due to the difficulty of calculating this delicate radiation through the depths of space, Hawking Radiation has remained a theory in the 42 years since, but Steinhauer's new experiment may bring it closer than ever to being proven.

In his experiment, the Israeli physicist created a simulated "black hole" capable of sucking in sound. To do this, Stenhauer shot a laser composed of rubidium atoms through an environment cooled to almost absolute zero. The atoms were moving faster than the speed of sound, making it difficult for sound to make its way through the stream.

"It's like trying to swim against the river," Steinhauer said. "If the river is going faster than you can swim, you go backwards, even though you feel like you're going forward." This means that part of the sound wave is pushed out of the "black hole," defying the scientific consensus on what may happen in real black holes.

The theory of Hawking Radiation is based on "virtual particles," the analogues of particles like photons described by quantum mechanics. Based on Steinhauer's experiment, it's possible that in a black hole, a photon may be sucked in while its partner virtual particle is radiated out into space. This is what Hawking's theory proposes. "What I saw suggests that a real black hole might emit something," Steinhauer said. If this is true, and Hawking Radiation is proven to exist, Stephen Hawking may finally win his first Nobel Prize for his work 40 years ago.

Steinhauer's paper is yet to be published, and is up on the pre-publishing platform arXiv.org right now for peer review. The initial reactions have been both positive and skeptical.

"The experiments are beautiful," physicist Silke Weinfurtner from the University of Nottingham told The Telegraph. "Jeff has done an amazing job, but some of the claims he makes are open to debate. This is worth discussing."
Sounds like a case of a wife with her husband's paycheck.
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