nemfrog:

The Moth Book. 1903.

(via scientificillustration)

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31st
Julho
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magdadudziak:

new prints available now on Society6 - check it out-thanks:)

http://society6.com/magdadudziak/exposure-by-magda-dudziak_print#1=45

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vincentvillella:

As an art student, you’re hit over the head repeatedly with Renaissance art, so I’ve gotten a little tired of it, but something I’m not tired of is the seemingly impossible naturalistic detail attained from stone and a chisel back then.

(via forwardslashreality)

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31st
Julho
trigonometry-is-my-bitch:

An Infinite series sequence shown in an equilateral Triangle.
it can be similarly represented mathematically as:

trigonometry-is-my-bitch:

An Infinite series sequence shown in an equilateral Triangle.

it can be similarly represented mathematically as:

\sum_{n=1}^\infty \frac{1}{2^n} = \frac{1}{2}+ \frac{1}{4}+ \frac{1}{8}+\cdots.

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msmrmusic:

Renys, 2014

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amortizing:

I follow back everyone!

(via hipocritasutopias)

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ilovecharts:

The US Geological Survey published a global geologic map of Mars this month, based on an unprecedented variety, quality, and quantity of remotely sensed data.

Click through for a larger image. The source is here, with a legend here.

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libutron:

Black Slime Mold

This photo shows the fruiting bodies (sporangia) of the cosmopolitan slim mold species Comatricha nigra growing on dead wood. The fragile sporangia of this species is less than 1 cm tall.

[Protista - Amoebozoa - Myxogastrea - Stemonitales - Stemonitidaceae - Comatricha Preuss 1851 - Comatricha nigra (Pers.) J. Schröt. 1885]

References: [1] - [2]

Photo credit: ©Juraj Komar | Locality: Piešt̕any, Trnavsky, Slovakia

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23rd
Julho
labphoto:

Chlorination with thionyl chloride. 
Thionyl chloride (IUPAC: sulfurous dichloride) is a really agressive reagent, it reacts with everything what contains even a little water, especially with your hands. 
During the reaction with water (SOCl2 + H2O —> 2 HCl + SO2) it produces hydrogen chloride and sulfur dioxide what are not the best for your health. 
Besides of these properties, it is a pretty useful reagent, since it reacts pretty well and could be removed easily since it’s low boiling point (74.6 °C). In organic chemistry it is most often used to prepare alkyl chlorides from alkyl alcohols (RCH2OH + SOCl2 —> RCH2Cl + HCl + SO2) and acyl chlorides from carboxylic acids (RCO2H + SOCl2 —> RC(O)Cl + HCl + SO2). Both reaction produces a lot toxic fumes, so it should be used under a well working fume hood.

labphoto:

Chlorination with thionyl chloride. 

Thionyl chloride (IUPAC: sulfurous dichloride) is a really agressive reagent, it reacts with everything what contains even a little water, especially with your hands. 

During the reaction with water (SOCl2 + H2O —> 2 HCl + SO2) it produces hydrogen chloride and sulfur dioxide what are not the best for your health. 

Besides of these properties, it is a pretty useful reagent, since it reacts pretty well and could be removed easily since it’s low boiling point (74.6 °C). In organic chemistry it is most often used to prepare alkyl chlorides from alkyl alcohols (RCH2OH + SOCl2 —> RCH2Cl + HCl + SO2) and acyl chlorides from carboxylic acids (RCO2H + SOCl2 —> RC(O)Cl + HCl + SO2). Both reaction produces a lot toxic fumes, so it should be used under a well working fume hood.

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rhamphotheca:

An angry mob of Northern leopard frogs (Lithobates pipiens) goes apeshit and ravages the countryside of Indiana.

photo by Tom Koerner/USFWS

(via: U.S. Fish and Wildlife Service Midwest Region)

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