Something That Happened Again

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Snapping Shrimp Studied With Numerical Simulations

Pistol shrimp. Even if the name isn’t familiar there is a good chance you will have heard of this special shrimp (more technically known as alpheidae family of snapping shrimp). Rather that the regular catching and grappling mechanisms that shrimp can use to defend and attack the pistol shrimp has been granted a special ability. Their claws are asymmetric and the larger of the two can be slammed shut to create a large snapping sound. Anyone who hasn’t heard of this shrimp will probably be thinking “so what?” This sound puts the shrimp as a contender for the loudest creature in the sea. The snap creates a bubble which collapses under the water pressure. Getting hit by this bubble collapsing bubble (which can be thrown 4cm from the shrimp’s claw); travelling 60 miles per hour; under an acoustic pressure 80 kPa; and probably reaching a temperature of 5000K spells the end for any small sea creature caught in the way and a hefty stun for anything bigger.

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Calculating Correlation Coefficients With Non Von Neumann Layouts

Thank you to Kapooht on Wikipedia for this diagram

The image on the left represents what is known as Von Neumann architecture, a layout for the various main component blocks of a computer. There is an input to receive a value; a central processing unit for calculations; a memory unit to store data and instructions; and finally an output so that we can receive the meaningful result of the input. This is one of the most common architectures for a computer to take (with a bit of streamlining and improvement, there was always the risk of data being run as code which is luckily prevented now). As computers have developed we have begun reaching a plateau of power and performance which we may not be able to overcome while still using Von Neumann architecture.

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Investigating Iron Ion Recycling In Pacific Regions

File:CO2 pump hg.png
Thank you to Dr Hannes Grobe on Wikipedia for this image

The diagram on the right represents a form of aquatic carbon cycle. It can be seen that dissolving is not the only way carbon dioxide enters the sea and the carbon that does enter this way will not progress to one of the more permanent carbon stores such as the handily suggested calcium carbonate (CaCO3). For carbon dioxide to be converted into such a form the left hand arrows provide the processes being either anorganic or organic. This paper looks at the biological pumping mechanism of carbon into the deep sea and how the rate of this transport is affected by other chemicals and ions nearby.

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Examining Precipitation Effect On Porous Materials

Although precipitation is often used as a synonym for rain, it also means the antonym of dissolving. As a material dissolves into a solution and appears to disappear it can likewise emerge from a solute when the conditions change to make the solid form more energetically stable. This is precipitation. Deserts suffer from an unfortunate form of precipitation where water is pulled from deep underground by capillary action. As it moves upwards it dissolves salts witch are carried with it to the surface. As the water evaporates the salt ions precipitate back into salt and leave a highly inhospitable layer upon the desert surface.

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