with love and stil with hope in Lord Jah too
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But smaller than 15 nm, the particles do not retain any alignment to an externally applied field. They 'flip' once the external magnetic field is removed. A ferrofluid uses this effect of superparamagnetism and once nano-sized particles of a ferromagnetic material are suspended in a surfactant, you have a fluid which can be easily magnetized and demagnetized.
Superparamagnets: Superparamagnets have fluctuating magnetic moments with no applied field, but with an applied external magnetic field they become magnetized easily. This effect is size dependent. What are magnetic moments? These are nothing but the spin of the electrons in a material.
Uses: Ferrofluids are made up of tiny magnetic fragments of iron suspended in oil (often kerosene) with a surfactant to prevent clumping (usually oleic acid). There are many commercial applications for ferrofluids--speakers and hard drives being the most common. The oily fluid prevents debris from entering hard drives when a small amount is placed between the magnets and shaft. In the case of speakers ferrofluids remove heat from the voice coils and help dampen the cone movement. They are also being studied as a contrast agent in MRI scans.
Source Popsci: http://www.popsci.com/diy/article/2009-09/making-ferrofluids-work-you
Wikipedia link: https://en.wikipedia.org/wiki/Ferrofluid
University of Wisconsin-Madison link: http://education.mrsec.wisc.edu/background/ferrofluid/
Research paper: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8228273
How to make your own Ferrofluid: http://www.instructables.com/id/Make-your-own-ferrofluid-in-5-minutes/
Wired link and videos: http://www.wired.com/2012/04/ferrofluid-videos/?viewall=true
Pic link: http://www.gifbay.com/gif/ferrofluid_sculpture-75030/ and http://www.gizmodo.com.au/tags/ferrofluid/
File this one under "holy crap," but scientists at MIT have discovered molecules that spontaneously assemble themselves into a pattern that can turn light into electricity — essentially a self-creating solar panel. In a petri dish.
The researchers set out to create a synthetic process that imitates photosynthesis. Certain molecules respond to light by releasing electrons; the trick was discovering a substance that sticks them together in a consistent structure. Phospholipids do just that, and they also attach themselves to carbon nanotubes, which conduct electricity. With the nanotubes holding the phospholipids in a uniform alignment, the photoreactive molecules are all exposed to light at once, and the tube acts as a wire that then collects the resulting electrical current.
The most interesting part is that the tiny solar array can be disassembled and reassembled just by adding chemicals. Spray on an additive and the molecular components break apart into a soup; remove it with a membrane, and the system spontaneously puts itself together.
After repeatedly having the system go through disassembly and reassembly, the scientists found the system had no loss in efficiency. That could prove to be the best development of all, since losing efficiency over time can be a big problem with some solar systems. It all makes sense: if you want to build better solar panels, why not look for inspiration from the most successful solar-energy generators of all: plants.
The FCC will close official public comments tonight at midnight on its (highly misleadingly named) 'Protecting and Preserving the Open Internet' initiative. More commonly, this is referred to as 'The Awful Thing that Destroys #NetNeutrality and Creates Internet Fast Lanes'. This nearly unanimously hated proposal threatens to forever misrepresent the founding principles of the internet. I IMPLORE you to take this time to leave your comment at the link below.
My comment is as follows:
I'm truly troubled by your persistence to end Net Neutrality, and instead create a system where the bidder with the most resources receives preferential treatment from internet service providers. Should the proposal 'Protecting and Promoting the Open Internet' be implemented, I foresee a future where smaller brands are unfairly damaged simply because they didn't have the cash to pay their ISP for ideal speeds. The average consumer won't understand why some sites are faster than others and will, instead, prefer certain sources over others not because of their content, but because of their willingness to dish out to Comcast. It's a situation that's bad for the consumer, bad for internet service providers, and bad for brands.
The internet was founded on the principle of free and open information for everyone. It gave everyone a voice, and every voice should reach me the same way. The FCC continues to plead with us saying that it is not creating a 'Fast Lane' and that every site will reach me at my promised speeds from my ISP, but faster is faster. The tubes that bring me the internet are no different than the power lines that provide power to my house or the water pipes underneath my feet. The internet has become a requirement for modern living and the FCC should make every effort possible to preserve and improve its ease of access. Your proposal does the exact opposite and, despite some creative language that may make 14-28 look appealing, the FCC has received more comments on this than anything else in its history. Everyone's caught on.
I implore you to seriously consider every comment you've received on your initiative and find a different solution. Should the FCC continue moving forward on 14-28, it will only hurt its perception as a woefully out of touch government agency that is not acting in the best interest of the American people. Please. Don't make me completely lose faith in the FCC's ability to protect my right to access information, promote forward-thinking innovations, and be a world leader in technology. There's still time to make this right by doing the most American thing possible - listening to the people you serve.
If you have no idea what I'm talking about, you need to have an idea and so does everyone else. Share this post or make your own.
For more information about the FCC's proposal -
First, check this out: http://gizmodo.com/the-grim-future-of-a-world-without-net-neutrality-1501161513/1566814900/+ace
Then this: http://motherboard.vice.com/read/not-even-the-fcc-likes-the-fccs-proposed-net-neutrality-rules
And then you can watch this: Last Week Tonight with John Oliver: Net Neutrality (HBO)
doesn't matter, let's just assume that i'm an idiot, as is every other non-conservative SCOTUS judge, and every person that ever disagreed with you in any way. good luck.
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