Wednesday, March 18, 2015

Octopus Predatory Behavior

Having finished the last post with a short discussion of hunting/foraging behavior in the octopus, I figured I should do a lighter post with some fun video examples of cephalopod predatory behavior.This is a short video of an octopus hunting (I dont know the species) by For the Sea Productions.  The octopus catches a fish, apparently by spreading its web and feeling around.  Theres some great color-changing behavior here, too.  Its hard to know how typical this behavior...
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Geography some interesting facts!

                                     GEOGRAPHY  FACTS Alaska    More than half of the coastline  of the entire United States is in  Alaska.   Amazon   The...
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Measuring Amps What is Measured in Amps

Most electrical appliances have wires attached to them.The wires carry an electric current around a complete pathway called an electric circuit.Some appliances need more electric current than others before they will work.The amount of electric current depends on how much electricity is flowing along the wires.How can we measure the amount of electric current?We could try counting the number of electrons...
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Panama Canal What is the Panama Canal

One of the most important construction  projects in the history of mankind was the building of the Panama Canal.The Panama Canal has influenced the development of trade across the globe.The construction of the canal, shortened the distance between many ports on the Atlantic and Pacific oceans for about 8,000 miles (13,000 kilometers). According to the first idea, the Panama Canal was supposed...
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Story of Vritra

INDRA, the Lord of the three regions, was once so drunk with pride that he quite forgot the courteous manners and forms that the gods had hitherto observed. When Brihaspati, preceptor of the gods, foremost in all branches of learning, and venerated alike by the gods and the asuras, came to his court, Indra did not rise from his seat to receive the acharya or ask him to be seated and failed to do the...
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Jaundice Icterus What is Jaundice

Jaundice (Icterus) is a condition characterized by a yellowing of the skin and the whites of the eyes. Jaundice is a symptom, not a disease in itself. The yellow coloration is caused by an excess in the body of the bile pigment bilirubin. Normally, bilirubin is formed by the breakdown of hemoglobin during the destruction of worn-out red blood cells. It is then excreted by the liver into the bile via the bile ducts.What causes high bilirubin in the body?High bilirubin can be caused by:Overproduction...
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We Are With You A Tribute to all Protestants from Jadavpur University

If it was necessary to brutally,physically attack students of one of the most esteemed universities of India,then we might think of many more things necessary to eradicate the corrupt,insane and maniacal party that is currently residing in this so called system.I have always been maintaining a certain professionalism while writing political,but the limits - every limit has been crossed.And it cannot be accepted anymore.We,students,are disgusted and agitated.How dare the police act like...
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WHAT CAUSES GLOBAL WARMING

The world is getting warmer. If you enjoy warm weather, you may think this is good news—but it’s not. Some experts say that over the last hundred years, temperatures on the earth have increased by 2.7 to 10 degrees Fahrenheit (1.5 to 5.6 degrees Celsius). The earth’s atmosphere is warming up, just as if it was trapped inside a greenhouse. This warming process is often called the greenhouse effect.The...
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The Squid Giant Axon

This post is dedicated to the squid giant axon (not the giant squid axon, although there is presumably a giant squid giant axon – and it’s really big!)  These axons carry information to the muscles of a squid’s mantle when it is startled, causing them to contract and jet to safety.  These axons are notable because they are so large – up to 1mm in diameter.  If this doesn’t seem large...
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Sri Shyamala Dhandakam Part 1 Durga sanskrit mantras

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My Wish List For Books Summer 2014

MATHS BOOKSTata McGraw-Hills Mathematics for IIT-JEESCIENCE BOOKSTheoretical Nuclear Physics (Dover Publications)BENGALI (LITERATURE) BOOKSChin Bharot Long March by Narayan Sanyal(I could not find out a good photograph of this book.In fact,there was only one photographs which is loosing clarity on stretching to even medium size.This proves the negligence done to Bengali books.Once I get hold of this...
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Carbon Prints and Gum Bichromate Prints The Invention of Photography Video Series

Carbon Prints and Gum Bichromate Prints - The Pigment Processes - Invention of Photography 5.44 min video created by George Eastman House.Carbon prints and gum bichromate prints are both examples of pigment processes. Rather than the metal salts typically used in the formation of photographic images, pigments and bichromated colloids are used in making these prints. A bichromated colloid is a viscous...
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INDIAN ARMY BEACON OF UNITY AND SECULARISM

In all the controversy and disputes over language and faith, the Indian Army stands in stark contrast as a beacon of what unity and secularism is all about .... A slap in the face of all who question interfaith and religious harmony and a reminder as to what Secularism truly is Heres the article sent to me by Colonel Rastogi Colonel RastogiAny one more secular than the army?As a serving army officer, I never stop marvelling at the gullibility of our countrymen to...
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Tuesday, March 17, 2015

Information Flow Diagram

Images gallery of information flow diagram Data flow diagram A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system, modeling its process aspects. Often they are a Introduction to Data Flow Diagram DFDs In the late 1970s data-flow diagrams (DFDs) were introduced and popularized for structured analysis and design (Gane and Information...
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