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Old 09-03-2011, 12:55 AM   #261
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Solar eclipse from MIR
Kick azz!
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check out my astrophotography:
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Old 09-06-2011, 10:59 AM   #262
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Good HAARP Video.

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Old 09-06-2011, 11:01 AM   #263
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Soon after posting that video, Dutchsince's youtube account was taken down, blog was hacked and taken down, among other things..... so much for free speech.
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Old 09-06-2011, 11:04 AM   #264
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http://www.youtube.com/user/dutchsin.../1/B61rP4nbQUw
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Old 09-06-2011, 03:51 PM   #265
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http://www.nist.gov/mml/materials_re..._pipelines.cfm
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NIST Finds That Ethanol-Loving Bacteria Accelerate Cracking of Pipeline Steels
From NIST Tech Beat: August 2, 2011

Contact: Laura Ost
303-497-4880


U.S. production of ethanol for fuel has been rising quickly, topping 13 billion gallons in 2010. With the usual rail, truck and barge transport methods under potential strain, existing gas pipelines might be an efficient alternative for moving this renewable fuel around the country. But researchers at the National Institute of Standards and Technology (NIST) caution that ethanol, and especially the bacteria sometimes found in it, can dramatically degrade pipelines.

At a conference this week,* NIST researchers presented new experimental evidence that bacteria that feed on ethanol and produce acid boosted fatigue crack growth rates by at least 25 times the levels occuring in air alone.

The NIST team used a new biofuels test facility to evaluate fatigue-related cracking in two common pipeline steels immersed in ethanol mixtures, including simulated fuel-grade ethanol and an ethanol-water solution containing common bacteria, Acetobacter aceti. Ethanol and bacteria are known to cause corrosion, but this is the first study of their effects on fatigue cracking of pipeline steels.

"We have shown that ethanol fuel can increase the rate of fatigue crack growth in pipelines," NIST postdoctoral researcher Jeffrey Sowards says. "Substantial increases in crack growth rates were caused by the microbes. These are important data for pipeline engineers who want to safely and reliably transport ethanol fuel in repurposed oil and gas pipelines."

Ethanol, an alcohol that can be made from corn, is widely used as a gasoline additive due to its oxygen content and octane rating. Ethanol also can be used as fuel by itself in modified engines. The NIST tests focused on fuel-grade ethanol.

The tests were performed on X52 and X70 pipeline steels, which are alloys of more than a dozen metals. Simulated fuel-grade ethanol significantly increased crack growth at stress intensity levels found in typical pipeline operating conditions, but not at low stress levels. The cracking is related to corrosion. The X70 steel, which is finer-grained than X52, had lower rates of crack growth at all stress levels. This was expected because larger grain size generally reduces resistance to fatigue. In the bacteria-laden solutions, acid promoted crack growth at stress intensity levels found in typical pipeline operating conditions.

Preliminary tests also suggested that glutaraldehyde, a biocide used in oil and gas operations, may help control bacterial growth during ethanol transport.

The findings are the first from NIST's biofuels test facility, where material samples are installed in hydraulic test frames and subjected to load cycles while immersed in fuel inside a transparent polymer tank. Fatigue crack growth and other properties are observed over a period of up to 10 days. NIST staff expect to continue and possibly expand the research to other potential biofuels such as butanol or biodiesel.

Collaborators at the Colorado School of Mines provided the bacteria, which were isolated from industrial ethanol storage tanks. The research was supported by the U.S. Department of Transportation.

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Old 09-06-2011, 06:57 PM   #266
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http://www.flightglobal.com/articles...endurance.html

Ultra Electronics has confirmed providing a new fuel cell that quadrupled the range of a conventionally-powered Lockheed Martin Stalker unmanned air system (UAS).
The UAS Power Pod is aimed at dramatically increasing the endurance of any UAS in the class below the 18kg (39.7lb) Boeing/Insitu ScanEagle.
The 2.6kg power system generated 245W on board the Stalker during a demonstration flight in May, and Lockheed hopes to eventually achieve 24h endurance with the fuel-cell powered, hand-launched UAS.
The fuel cell combines propane and a solid oxider to generate an energy density of 1,200Wh/kg - four times the density offered by lithium-polymer batteries, Ultra said.
The Power Pod is now being prepared to enter field trials to make it ready for production.
The fuel cell technology was developed by Adaptive Materials, which was acquired earlier this year by Ultra.
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Old 09-07-2011, 08:59 AM   #267
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http://www.nerve.com/news/movies/che...under-of-pixar

40 year old 3D animation.
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Old 09-07-2011, 09:14 AM   #268
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^ Saw that last night but I had no idea he was the head of Pixar, really cool.

Just came across this amazing site by Microsoft that contains the Feynman lectures. I haven't had a chance to sit down and watch yet, but the books are regarded as a must for anyone interested in physics.
http://research.microsoft.com/apps/t...va/index.HTML#
http://www.amazon.com/Feynman-Lectur.../dp/0465023827
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What's this about a brownie in motion?
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Old 09-07-2011, 12:26 PM   #269
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Researchers have created a time cloak. What?
http://www.forbes.com/sites/alexknap...o-hide-events/
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Old 09-07-2011, 12:53 PM   #270
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Actual picture of saturn


http://cache.gawkerassets.com/assets...9/saturnto.jpg
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Old 09-08-2011, 10:50 AM   #271
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Old 09-08-2011, 10:52 AM   #272
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Actual picture of saturn
[IMG]http://cache.gawkerassets.com/assets/images/8/2011/09/saturnto.jpg[IMG]

http://cache.gawkerassets.com/assets...9/saturnto.jpg
Saw that a few days ago and I still have trouble believing that's real.
http://apod.nasa.gov/apod/ap110904.html
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Old 09-08-2011, 11:19 AM   #273
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It's also surprising you can see the "pale blue dot".

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Old 09-08-2011, 11:24 AM   #274
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Saw that a few days ago and I still have trouble believing that's real.
http://apod.nasa.gov/apod/ap110904.html
yeah it looks fake as hell lol
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Old 09-08-2011, 12:59 PM   #275
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yeah that picture of saturn looks so awkward. heres a video of saturn, looks incredible

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Old 09-08-2011, 01:04 PM   #276
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I've been able to pick out the rings with an old 4" telescope but it's not powerful enough to resolve any detail or color. It's still pretty amazing to know that you're looking at another planet though.
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Old 09-08-2011, 01:59 PM   #277
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I'm 90% sure this is the project Mashalah20 has been working on
CRESST team finds new 'evidence' of dark matter
http://www.physorg.com/news/2011-09-...ence-dark.html
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Old 09-08-2011, 03:40 PM   #278
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I'm 90% sure this is the project Mashalah20 has been working on
CRESST team finds new 'evidence' of dark matter
http://www.physorg.com/news/2011-09-...ence-dark.html
that would be awesome. That dude seems to know what he's doing.
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Old 09-08-2011, 04:05 PM   #279
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That's because he's almost done with his PhD in astrophysics
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Old 09-08-2011, 04:11 PM   #280
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That's because he's almost done with his PhD in astrophysics
pffftt....everyone knows astrology is all BS...I never believed in all that "whats your sign" business anyways...
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