SCIENCE!

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Re: SCIENCE!

Postby Maraschino Larry » Tue Mar 12, 2013 10:28 am

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Re: SCIENCE!

Postby professor science » Thu Mar 14, 2013 10:40 pm

I love when they vary the sound frequency by 1 Hz forwards and backwards.
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Re: SCIENCE!

Postby professor science » Sat Mar 23, 2013 12:56 pm



Hawking documentary? Shut up and take my money!
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Re: SCIENCE!

Postby professor science » Sun Apr 21, 2013 7:01 pm

Fluid Dynamics!

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Re: SCIENCE!

Postby professor science » Wed May 15, 2013 10:12 pm

OMG.

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http://imgur.com/a/crtjn

Animated gifs from the images Cassini has taken of Saturn.

I find it absolutely mind blowing that we have moving pictures of other planets.

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Re: SCIENCE!

Postby Dreamstate » Wed May 22, 2013 12:43 pm

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Re: SCIENCE!

Postby professor science » Sun Jun 16, 2013 11:02 pm

Underwater explosion at 30k fps.



fuckyeahfluiddynamics wrote:Underwater explosions are, in general, much more dangerous than those in air. This video shows an underwater blast at 30,000 fps. During the initial blast, a hot sphere of gas expands outward in a shock wave. In air, some of the energy of this pressure wave would be dissipated by compressing the air. Since water is incompressible, however, the blast instead moves water aside as the bubble expands. Eventually, the bubble expands to the point where its pressure is less than that of the water around it, which causes the bubble to collapse. But the collapse increases the gas pressure once more, kicking off a series of expansions and collapses. Each bubble contains less energy than the previous, thanks to the loss of pushing the water aside. (Video credit: K. Kitagawa)
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Re: SCIENCE!

Postby professor science » Sun Jun 16, 2013 11:06 pm



fuckyeahfluiddynamics wrote:This video shows a multi-layered droplet, in which several droplets are formed one inside the other as an initial drop falls through a layer of oil sitting atop another liquid. When the drop falls, its potential energy gets transformed into interface energy, creating a fascinating interplay of surface tension, deformation, and miscibility between the fluids. Such self-contained multi-layered droplets, similar to multiple emulsions, could be helpful in pharmaceutical development. (Video credit: E. Lorenceau and S. Dorbolo 2004)


http://fuckyeahfluiddynamics.tumblr.com
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Re: SCIENCE!

Postby professor science » Sun Jun 16, 2013 11:08 pm

DW, this is for you.



We could do what you talked about with a strobe light to simulate the FPS of a video camera.
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Re: SCIENCE!

Postby professor science » Sun Jun 16, 2013 11:14 pm

F*** I love this tumblr.



fuckyeahfluiddynamics wrote:There’s something wonderfully serene about watching water droplets skate their way across the surface of a pool. Here the pool of water is being vibrated at a frequency just below the Faraday instability - meaning that no standing waves form on the surface. Instead, the bounce is just enough to create a thin layer of air between the droplet and the pool to prevent coalescence. With each bounce, gravity’s effect on the water tries to drain the air away, but each rebound lets more air rush in to hold the droplet up. Eventually, gravity wins and the droplets coalesce into the pool. In high-speed that process is mesmerizing, too. (Video credit: K. Welch)
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Re: SCIENCE!

Postby tripwalking » Mon Jun 17, 2013 10:22 am

Thanks Rob!
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Re: SCIENCE!

Postby professor science » Thu Aug 29, 2013 10:20 am

This would shake things up a bit...

From the Space article linked below:

We may all be Martians.

Evidence is building that Earth life originated on Mars and was brought to this planet aboard a meteorite, said biochemist Steven Benner of The Westheimer Institute for Science and Technology in Florida.

An oxidized form of the element molybdenum, which may have been crucial to the origin of life, was likely available on the Red Planet's surface long ago, but unavailable on Earth, said Benner, who presented his findings today (Aug. 28; Aug. 29 local time) at the annual Goldschmidt geochemistry conference in Florence, Italy.

"It’s only when molybdenum becomes highly oxidized that it is able to influence how early life formed," Benner said in a statement. "This form of molybdenum couldn’t have been available on Earth at the time life first began, because 3 billion years ago, the surface of the Earth had very little oxygen, but Mars did. It’s yet another piece of evidence which makes it more likely life came to Earth on a Martian meteorite, rather than starting on this planet."


http://www.bbc.co.uk/news/science-environment-23872765
http://www.space.com/22577-earth-life-f ... heory.html
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Re: SCIENCE!

Postby Maraschino Larry » Sat Oct 05, 2013 10:52 pm

I can't believe this is real... Amazing.

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Re: SCIENCE!

Postby professor science » Sun Oct 06, 2013 6:09 pm

I remember seeing that article. has something to do with the shear modulus/viscosity of the liquids. No mixing actually takes place under rotation.
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Re: SCIENCE!

Postby Maraschino Larry » Sun Oct 06, 2013 6:24 pm

Yeah I found the article after posting... the way it's filmed is deceiving, it looks like they're inline but the colours are staggered within the corn syrup. Still pretty neat I guess... but not the magic that was blowing my mind lol.
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Re: SCIENCE!

Postby Maraschino Larry » Mon Oct 14, 2013 11:49 pm



8)
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Re: SCIENCE!

Postby Maraschino Larry » Tue Nov 12, 2013 10:17 pm

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Re: SCIENCE!

Postby professor science » Tue Nov 26, 2013 12:27 am

We're doing centripetal force in class. Best. Resource. Ever. (aside from a bit of colourful language)

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Re: SCIENCE!

Postby tripwalking » Tue Nov 26, 2013 4:06 pm

What parent lets their 7 year old bring their scooter to the playground anymore?
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Re: SCIENCE!

Postby Maraschino Larry » Tue Nov 26, 2013 4:24 pm

professor science wrote:(aside from a bit of colourful language)


Mute the video and play this over it... ftw
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Re: SCIENCE!

Postby Dreamstate » Tue Nov 26, 2013 5:36 pm

The last one :lol: :lol:
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Re: SCIENCE!

Postby Maraschino Larry » Thu Nov 28, 2013 8:41 pm

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Re: SCIENCE!

Postby professor science » Thu Nov 28, 2013 11:04 pm

I still think we should have 13 months of 28 days each + 1 (or 2) end of year holidays. Then all the months start and end on the same day and number.
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Re: SCIENCE!

Postby tripwalking » Fri Nov 29, 2013 11:25 am

And do away with daylight savings time and if we're getting all crazy, forget about time zones too...


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Re: SCIENCE!

Postby Maraschino Larry » Fri Nov 29, 2013 12:16 pm

I'd go along with Rob & DW's ideas.
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