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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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Illusion!
 
Shades Of Grey: Chubb Illusion.
Join the Simple Science and Interesting Things Community and share interesting stuff! https://plus.google.com/communities/117518490246975838002

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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cool..
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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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move your head or the computer screen to view!
#opticalillusion  
 
Optical illusion cool, weird 
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I can see it when I take off the glasses!!!!
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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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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.
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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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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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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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The chase is on!
 
Vortex chase:
"3-in-1 illusion gif  
illusion 1 : you may think there are some round particles in motion, but all of them are static, just growing up and down one at a time (mexican wave effect) https://en.wikipedia.org/wiki/Wave_(audience)
illusion 2 : you may think the first worm runs faster than the second one, and that they’re both accelerating, but they keep the same constant speed and distance in time and space all along (400m race bend effect)
illusion 3 : you may think there’s a third illusion but there’s not."
By Frédéric Vayssouze-Faure
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Thats Cool!!!
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