Science

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Fish On Fridays?

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[youtube http://www.youtube.com/watch?v=eZ05z6ebKDQ]

So we've heard about how fluids can have different viscosities and Newtonian fluids have constant viscosities, where as non-Newtonian fluids have viscosities that change depending on the shear rate or speed with which the object lives through them. Okay, that makes sense.......Go Fish!

Apparently in the future we are going to have micro robots swimming around inside of us with the mission to rid us of bad things. One application discussed is the repair of our eyes. The micro-scallops will gleefully swim in our eye fluid and zap any distortions that they find on the eyeball. Take that Cataract!

We have travelled a long way since scracthing fleas from our hairy bodies on those hot summer nights around the camp fire on the African veldt. Kumbaya!

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Those Big Wheels Keep Spinning. Video Of Ocean Currents: "Perpetual Ocean."

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Atlantic

Gulf Stream

Southafrica

Southern Ocean

Westernpacific

Kuroshio Current

[youtube http://www.youtube.com/watch?v=cX7YfXFQgH0]

Sailors take note of the currents dancing in front of your eyes.

[youtube http://www.youtube.com/watch?v=rETDTTXJjfU]

Can't get enough? Zone out for 20 minutes with the full length version of swirling ocean surface currents. 

Created by the NASA/Goddard Space Flight Center Scientific Visualization Studio.

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Science On Sunday. Spectacular Saturn Fly-Through.

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[vimeo http://www.vimeo.com/11386048 w=466&h=262]

5.6k Saturn Cassini Photographic Animation from stephen v2 on Vimeo.

Stephen van Vuuren - "This is fly-through of this photograph - photojournal.jpl.nasa.gov/​catalog/​PIA11141 - only a little brightness and contrast has been made to balance the moons with saturn's body. Do note that several thousand layers of many Cassini photographs were animated to make the fly-through work without any 3D CGI. The saturation is off due to lack of Flash Player ICM support."

Via, one of the most interesting bloggers around, Ole Eichhorn.

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Wednesday Wipeout. "Yeti Eats East Coast."

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That's one big snow-cone!
As a giant snowstorm plowed across the U.S. this week, the GOES-13 weather satellite drifted 22,000 miles overhead, capturing all the snowy chaos in a single dramatic frame. The resulting image, pictured above, reveals just how big the storm became.

Where's my bottle of bourbon?

Via Zen's Facebook page.

The Universe Is A Strange And Mysterious Place.

Hubble Captures View of
Source: Hubblesite.org. Click the photo to enlarge it.

To celebrate its 20th anniversary in orbit, NASA released a photo from the Hubble Space Telescope that captured a small breathtaking portion of one of the largest visible star-birth regions in the galaxy, the Carina Nebula. The image above shows the top of a three-light-year-tall pillar of gas and dust that is being eaten away by the brilliant light from nearby bright stars. The pillar is also being pushed apart from within, as infant stars buried inside it fire off jets of gas that can be seen streaming from towering peaks like arrows sailing through the air. Read more at Discovery.com.

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Oh, Oh! It Looks The Aliens Are Here.

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A strange light appeared in the sky over northern Norway. No one seems to know what caused it to appear. Could it be a beckon from Santa or the Russians playing with a new toy?

"The mystery began when a blue light seemed to soar up from behind a mountain in the north of the country. It stopped mid-air, then began to move in circles. Within seconds a giant spiral had covered the entire sky. Then a green-blue beam of light shot out from its centre - lasting for ten to 12 minutes before disappearing completely.

Onlookers describing it as 'like a big fireball that went around, with a great light around it' and 'a shooting star that spun around and around'."

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Look In The Sky, It's A Giant Donut Hole! [Astro Pic]

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Actually, its a dark molecular cloud also known as dark absorption nebulae. "What's that Joe?"
It huge mass of dust and molecular gas which when mixed (not stirred) creates a combination that zaps out all the visible light. Hence, you can't see stars hiding in the background. Our friend above is called Barnard 68 and it is located in the Ophiuchus constellation.

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