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More homes could be powered by the earth's natural underground heat with a new, #nontoxic and potentially recyclable liquid that is expected to use half as much water as other fluids used to tap into otherwise unreachable #geothermal hot spots. The fluid might be a boon to a new approach to geothermal #energy called enhanced geothermal systems. These systems pump fluids underground, a step that's called "reservoir stimulation," to enable power production where conventional geothermal doesn't work. Learn more at http://www.pnnl.gov/news/release.aspx?id=4195.
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Detecting cyber security breaches and identifying their attack patterns in complex computing networks – as they emerge in real time – is a growing challenge for those entrusted with intellectual properties and customer data. Scientists at PNNL and +Washington State University  developed StreamWorks, a technology that helps to identify and categorize cyber attacks as graph patterns as they happen.  Learn more at https://www.pnnl.gov/science/highlights/highlight.asp?id=3956.
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Can we really come to a pattern??
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Fun Facts About Water - From Cohesion to Adhesion!
#water   #science   #physics   #gif  
 
Water is one of the most common necessities. Without it, life wouldn't exist as we know it. Water is special because of its many properties, and though this might not teach you anything new, here are some which are clearly shown in space's low gravity.

Polarity:
Water is a polar molecule. That means that one side of a water molecule has a positive charge while the other has a negative charge. To be specific, the side with the two hydrogen molecules is positive and the side with oxygen is negative. Water's polarity is what allows all its other properties to exist.

Cohesion:
Cohesion is a direct effect of polarity. Because one side of the molecule is positive and the other negative, water molecules attract. Molecules form hydrogen bonds and in this way are able to stay together. This is clearly shown in gif below where the water stays together in a blob. This property allows them to stick together and create something called surface tension.

Surface Tension:
Surface tension is created by cohesion. With the hydrogen bonds keeping the molecules together, a thin film is created on the surface. This is able to support some types of insects. Surface tension can be seen in the gif as the outer surface that wobbles with the water.

Adhesion:
Adhesion is another effect of water's polarity. It allows water molecules to stick to other polar molecules. Just like cohesion, the positive side of water attracts the negative side of another molecule and the negative side attracts the positive. In the gif below it can be seen that the water is attracted to the washcloth and the person's hand.

Capillary Action:
Capillary action occurs due to water's adhesion. Because water's adhesion attracts it to other materials, water tries to touch as much of it as possible. When water is placed in a thin tube made of another polar material, it will seemingly climb up the tube. Capillary action is what allows plants and trees to transport water from the ground into the highest point of the plant.

Universal Solvent:
Water is commonly referred to as the universal solvent. This is because it is able to dissolve more substances than any other liquid. Once again it is due to water's polarity. Because water is polar, it attracts many substances. Not only that, it's pull is so strong that it often ends up breaking the bonds between the other
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Straight Bar through Curved Hole!
 
here's a gif of a straight bar passing through a curved hole.
I feel like this is what it means when dudes say, "no homo."
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Flip-book with a Hole Puncher!
#flipbook  
 
Flip-book with a Hole Puncher.
Join the Simple Science and Interesting Things Community and share interesting stuff! https://plus.google.com/communities/117518490246975838002

The origins of the hole punch date back to Germany via Matthias Theel, where two early patents for a device designed to "punch holes in paper" have since been discovered. Friedrich Soennecken made his patent on November 14, 1886, for his Papierlocher für Sammelmappen
http://en.wikipedia.org/wiki/Hole_punch

http://www.gfycat.com/GleamingCleanEmperorpenguin
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Fabiana Bueno

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 The Cicret Bracelet: Like a tablet...but on your skin.

https://www.youtube.com/watch?v=9J7GpVQCfms&feature=youtu.be
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No its not working prototype and in crowd funding
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Ammonia is synthesized in massive quantities for crop fertilizers using a process invented in 1909. Now, catalysis scientists have created a specialized calcium- and aluminum-based support that removes a troubling bottleneck. The material feeds the catalyst extra electrons, allowing the reaction to work without the need for high pressures. Lowering the pressures required reduces the cost of ammonia production and makes processes safer. Also, it simplifies ammonia synthesis enough to allow it to be a fuel, packing energy from wind turbines and solar cells inside its bonds. Read more at https://www.pnnl.gov/science/highlights/highlight.asp?id=3951.
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Curious....
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To gain an atomic-level understanding of what happens inside the ubiquitous lithium battery, scientists designed and implemented an ‘operando’ electrochemical stage. Using this stage inside a state-of-the-art aberration-corrected transmission electron microscope, they took nanoscale-resolution pictures of lithium ions as they are deposited on or dissolve off of an electrode while the battery runs. With the new stage, scientists can directly image changes as they occur. This information is vital to control performance- and safety-limiting processes. Read more at https://www.pnnl.gov/science/highlights/highlight.asp?id=3939.
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Sree Arravind

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The refraction of white light through a prism. 

#GIFs   #ScienceEveryday  

via: 
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Arctic sea ice has reached its peak winter extent for the year, and it’s the lowest winter maximum on record!
#science  
 
Arctic sea ice has reached its peak winter extent for the year, and it’s the lowest winter maximum on record. 

Learn more: http://1.usa.gov/1xCbR5Q 
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Sharing cutting-edge science on Google+! Note: This Community is in no way associated with Google, Inc. Just fans of their technology sharing and learning. Thanks Google! =)
 
Replacing inefficient and polluting combustion engines with fuel cells on a massive scale is not yet feasible because the cells require cost-prohibitive platinum-based catalysts. A new nanoparticle preparation system at PNNL provides the means to get at the fundamental science of replacing some of the platinum with cheaper, Earth-abundant metals. The implications of this new preparation technique go far beyond fuel cells. It may be used to create alloy nanomaterials for solar cells, catalysts for a variety of chemical reactions, and energy storage devices.  Read more at https://www.pnnl.gov/science/highlights/highlight.asp?id=3965.
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+Shreyashree Satyen Kumar
Nanoparticle (not nanobots) approaches to catalysis that allows more efficient fuel cells using less expensive -- and more readily available -- materials.
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Lamya (Muslim and Proud)

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Daughter sends a message of love to her astronaut dad visible from space - an enormous 5,556,411.86 m² (59,808,480.26 ft²) tire track image carved into the Nevada desert!
Full story & video --> www.bit.ly/GWR-space-message

#guinnessworldrecords   #officiallyamazing  +Hyundai Worldwide  #space   #love   #ISS  
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DNA replication & "Duons"
#dna   #gif   #science  
 
DNA replication & "Duons"

DNA carries the information for making all of the cell's proteins. These pro­teins implement all of the functions of a living organism and determine the organism'­s characteristics. When the cell reproduces, it has to pass all of this information on to the daughter cells.

Before a cell can reproduce, it must first replicate, or make a copy of, its DNA. Where DNA replication occurs depends upon whether the cells is a prokaryote or a eukaryote. DNA replication occurs in the cytoplasm of prokaryotes and in the nucleus of eukaryotes. Regardless of where DNA replication occurs, the basic process is the same.

The structure of DNA lends itself easily to DNA replication. Each side of the double helix runs in opposite (anti-parallel) directions. The beauty of this structure is that it can unzip down the middle and each side can serve as a pattern or template for the other side (called semi-conservative replication). However, DNA does not unzip entirely. It unzips in a small area called a replication fork, which then moves down the entire length of the molecule.

Sources and further reading:
http://science.howstuffworks.com/life/cellular-microscopic/dna3.htm
http://en.wikipedia.org/wiki/DNA_replication

Duon is something we already knew about
Anyways, your DNA contains the information that creates proteins. It also contains the information that regulates which genes get expressed and how proteins get made. A recent press release, announcing the findings of an article published in the journal Science, has presented this dual function as something mind-blowingly new. Well..it's not.This study only adds some color to a painting we've already seen." 

You might want to read Emily Willingham article about this:
 http://www.forbes.com/sites/emilywillingham/2013/12/13/dont-be-duped-by-duon-dna-hype/

Gif via imgur
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Illusion!
 
Shades Of Grey: Chubb Illusion.
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An object of low-contrast visual texture surrounded by a field of uniform visual texture appears to have higher contrast than when presented on a field of high-contrast texture. This illusion was observed by Charles Chubb and colleagues and published in 1989. An empirical explanation of the Chubb illusion was published by Lotto and Purves in 2001
http://en.wikipedia.org/wiki/Chubb_illusion

http://gfycat.com/RelievedMediumFlycatcher#
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Fabiana Bueno

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 Did you know? Curiosities of the scientific world and inventions ....
 
1940's Film Goddess Hedy Lamarr Responsible For Pioneering Spread Spectrum ... "wireless" . Open the link

http://inventionconvention.com/americasinventor/dec97issue/section2.html
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Tropical forests store 50 percent of carbon found on land in Earth's carbon budget. Forests store this carbon out of the atmosphere, where it would otherwise exist in the form of carbon dioxide, the greenhouse gas on the rise due to fossil fuel burning. Climate and earth systems researchers aren't sure how much carbon the forests will continue to store in a warmer world. To improve that knowledge, a $100 million, 10-year research project is beginning with pilot studies in Manaus, Panama, and Puerto Rico. Learn more at http://www.pnnl.gov/news/release.aspx?id=4193.
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Forest and grassland fires can, in a short time, completely change the landscape. Fires devastate biodiversity and agriculture, impact human health and affect climate by emitting powerful pollutants and atmospheric particles. Researchers at PNNL’s Joint Global Change Research Institute and their collaborators developed a new fire model called HESFIRE (Human-Earth System FIRE) that factors in human activities affecting the environment, humidity, and terrestrial influences to understand what’s likely to burn and how fire may spread. This will also allow scientists to forecast fire trends under future conditions. Read more at http://www.pnnl.gov/science/highlights/highlight.asp?id=3955&groupid=749.
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Russian spacecraft docks at International Space Station!
#iss   #russia   #internationalspacestation  
 
Washington, March 28: A Russian Soyuz spacecraft, with three crew on board, on Saturday docked with the International Space Station (ISS), a media report said. According to a statement issued by American space agency NASA, Russian cosmonaut Mikhail…
Washington, March 28: A Russian Soyuz spacecraft, with three crew on board, on Saturday docked with the International Space Station (ISS), a media report said. According to a statement issued by American space agency NASA, Russian cosmonaut Mikhail Kornienko, 54, and American astronaut Scott Kelly, 52, are to spend 342 days aboard the orbiting laboratory […]
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Biomechanical Simulation!
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Tried not to, but, I'm gonna give in to it.. This is extremely basic graphics, I can apreciatre the time and energy it took to put the data points on the snake, but its just showing what you see from a certain perspective. The lifting and dropping of the body in the series of undulations is not counting the fact that snake bellies are not circular. They have a series of longer scales that are called scoots these scoots literally cross the entire underbelly the simulation needs to use something a lot less spherical and incorporate impact data . if this is supposed to be a water snake then the motion is closer to that, harry potter and the chamber of secrets did a better job of simulating the motion of the animal.
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