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Know any chemistry?


Particularly the chemistry of, um, highly unstable, heavily nitrated compounds?

I just dare you to try to read this latest missive from Derek Lowe with a straight face.

What This Here Compound Needs Is Some Hydrogen Peroxide | In the Pipeline


https://blogs.sciencemag.org/pipeline/archives/2016/09/27/what-this-here-compound-needs-is-some-hydrogen-peroxide

#chemistry #science #BOOM
 

Know any chemistry?


Particularly the chemistry of, um, highly unstable, heavily nitrated compounds?

I just dare you to try to read this latest missive from Derek Lowe with a straight face.

What This Here Compound Needs Is Some Hydrogen Peroxide | In the Pipeline


https://blogs.sciencemag.org/pipeline/archives/2016/09/27/what-this-here-compound-needs-is-some-hydrogen-peroxide

#chemistry #science #BOOM
 
A 1000-line Python script outputs different results on different operating systems, tainting 100 published studies.
#chemistry #Python #glitch #operating #system #OS

A Code Glitch May Have Caused Errors In More Than 100 Published Studies - VICE



Scientists in Hawaiʻi have uncovered a glitch in a piece of code that could have yielded incorrect results in over 100 published studies that cited the original paper.

The glitch caused results of a common chemistry computation to vary depending on the operating system used, causing discrepancies among Mac, Windows, and Linux systems. The researchers published the revelation and a debugged version of the script, which amounts to roughly 1,000 lines of code, on Tuesday in the journal Organic Letters.

“This simple glitch in the original script calls into question the conclusions of a significant number of papers on a wide range of topics in a way that cannot be easily resolved from published information because the operating system is rarely mentioned,” the new paper reads. “Authors who used these scripts should certainly double-check their results and any relevant conclusions using the modified scripts in the [supplementary information].”
[…]
Luo’s results did not match up with the NMR values that Williams’ group had previously calculated, and according to Sun, when his students ran the code on their computers, they realized that different operating systems were producing different results. Sun then adjusted the code to fix the glitch, which had to do with how different operating systems sort files.
 
A 1000-line Python script outputs different results on different operating systems, tainting 100 published studies.
#chemistry #Python #glitch #operating #system #OS

A Code Glitch May Have Caused Errors In More Than 100 Published Studies - VICE



Scientists in Hawaiʻi have uncovered a glitch in a piece of code that could have yielded incorrect results in over 100 published studies that cited the original paper.

The glitch caused results of a common chemistry computation to vary depending on the operating system used, causing discrepancies among Mac, Windows, and Linux systems. The researchers published the revelation and a debugged version of the script, which amounts to roughly 1,000 lines of code, on Tuesday in the journal Organic Letters.

“This simple glitch in the original script calls into question the conclusions of a significant number of papers on a wide range of topics in a way that cannot be easily resolved from published information because the operating system is rarely mentioned,” the new paper reads. “Authors who used these scripts should certainly double-check their results and any relevant conclusions using the modified scripts in the [supplementary information].”
[…]
Luo’s results did not match up with the NMR values that Williams’ group had previously calculated, and according to Sun, when his students ran the code on their computers, they realized that different operating systems were producing different results. Sun then adjusted the code to fix the glitch, which had to do with how different operating systems sort files.
 
Behold the Matryoshka Diamond. #science #chemistry #chem #physics #mining
 
Behold the Matryoshka Diamond. #science #chemistry #chem #physics #mining
 

German police stumble upon huge stockpile of chemicals during routine call out - The Local


in April police and fire fighters stumbled about a warehouse full of dangerous chemical stuff.
It has now been confirmed that it was a drug laboratory for synthetic drugs, probably speed.
There are also some evidences that it was operated by Dutch people
Further inspection revealed that 35,000 litres of sulphuric acid, caustic soda and phosphoric acid were being illegally held in huge 1,000-litre barrels at the the 650-square metre unit. Some 50 propane bottles were also found at the site.
Here are some photos from inside the location:
https://www.westfalen-blatt.de/OWL/Fotos/Kreis-Minden-Luebbecke/3829342-Abbau-des-Chemielagers-in-Preussisch-Oldendorf

@Martha McDougall @Jacob Clayton This is around 80km from where I live. One of the biggest drug labs found in Germany.
@Andrea Borgia @New World Order Ltd. - Zweigbüro Lissabon

#Drugs #breakingBad #NRW #Germany #Speed #Chemistry

https://www.thelocal.de/20190429/german-police-stumble-upon-huge-stockpile-of-chemicals-during-routine-call-out
 
Interesting article about hunting for ways to make the colour blue appear in various ways.
Designing materials from scratch to produce blue is difficult even today, Subramanian says. "So much chemistry has to come together," he says. Subtle changes in the arrangement of neighboring atoms can throw off the energy levels of an atom's electrons, altering the color it can absorb. The red of rubies and the green of emeralds both spring from chromium ions surrounded by six oxygen atoms; other atoms in the two stones cause the color difference by altering the chromium's energy levels. Such effects are very hard to predict, Subramanian says: "If rubies and emeralds did not exist in nature, no one would know how to create them."

But scientists have not given up hunting for new blues, continuing an age-old quest with 21st century tools. Although Subramanian's discovery came about by accident, other researchers are methodically using physics, chemistry, and genetics to find or create new blues for painters to dazzle with, edible colorants that make food more interesting, and blue flowers that, so far, only exist in artists' imaginations.
#Science #Biology #Chemistry #Colours #Blue
 
Interesting article about hunting for ways to make the colour blue appear in various ways.
Designing materials from scratch to produce blue is difficult even today, Subramanian says. "So much chemistry has to come together," he says. Subtle changes in the arrangement of neighboring atoms can throw off the energy levels of an atom's electrons, altering the color it can absorb. The red of rubies and the green of emeralds both spring from chromium ions surrounded by six oxygen atoms; other atoms in the two stones cause the color difference by altering the chromium's energy levels. Such effects are very hard to predict, Subramanian says: "If rubies and emeralds did not exist in nature, no one would know how to create them."

But scientists have not given up hunting for new blues, continuing an age-old quest with 21st century tools. Although Subramanian's discovery came about by accident, other researchers are methodically using physics, chemistry, and genetics to find or create new blues for painters to dazzle with, edible colorants that make food more interesting, and blue flowers that, so far, only exist in artists' imaginations.
#Science #Biology #Chemistry #Colours #Blue
 
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