Tushhar
299 posts

Tushhar
@tushhar22
All is built on sand, but we must build as if the sand were stone.
Katılım Mayıs 2014
1.2K Takip Edilen91 Takipçiler

@MNageswarRaoIPS @grok Which carcinogenic emissions are reduced and which are increased when ethanol is blended with petrol? Give a Net Carcinogenicity Impact summary.
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As an MSc in Chemistry, let me explain the issue of carcinogen emissions from the use of ethanol-blended petrol (e.g., #E10 or #E20 fuels).
Ethyl alcohol (ethanol), when oxidised, forms acetaldehyde (ethanal). Conversely, acetaldehyde (ethanal) when reduced, forms ethyl alcohol (ethanol). Note: In chemical nomenclature "-ol" is a suffix for alcohols and "-al" is for aldehydes.
When ethanol is consumed as an alcoholic beverage, it is metabolised in the human body into acetaldehyde, which is then further metabolised into acetate and excreted. However, acetaldehyde is a known toxic byproduct and is classified as a carcinogen. While ethanol itself is not inherently a carcinogen, its consumption initiates a chain reaction that can lead to cancer, particularly with heavy or prolonged consumption.
When ethanol is blended with petrol and burned in an internal combustion engine, the combustion process (oxidation) produces acetaldehyde as a byproduct due to incomplete combustion, as 100% combustion does not occur. The amount of acetaldehyde produced depends on factors such as engine type, combustion efficiency, air-fuel ratio, temperature, and operating conditions.
Thus, acetaldehyde formation is a recognised issue in biofuel combustion. While reports from NITI Aayog, the Petroleum Ministry, and the National Policy on Biofuels primarily focus on savings of more than Rs. one lakh crore, the health hazards posed by acetaldehyde, classified as a Group 1 carcinogen by the International Agency for Research on Cancer and highlighted by the Centre for Science and Environment, including risks of respiratory issues and cancer from elevated aldehyde emissions in urban areas, have been conspicuously ignored.
I sincerely hope that the government will reconsider the issue in its entirety.

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@talk2anuradha @nitin_gadkari The issue isn’t lack of transparency - it’s mindset. Govt treats infrastructure(and everything else) as projects, not products. Projects end at completion; products evolve with ownership, feedback, and maintenance.
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Dear @nitin_gadkari
We need a public website that shows:
> Which contractor built road
> Which babu approved it
> Total cost & ministers involved
> Firm responsible for maintenance
Contractors are becoming billionaires while people die on roads
Bring real accountability now!
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Hear, hear.
Nick Freitas@NickJFreitas
Just saw a pre-recorded interview with Thomas Sowell on Uncommon Knowledge that aired yesterday. Mr. President @realDonaldTrump, respectfully, it would be a tremendous shame if Thomas Sowell did not receive the Presidential Medal of Freedom while he still lives.
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Tushhar retweetledi

An Idiot's Guide to Buying a CNC Machine (thread)
If you don't know where to start, here ya go. I'm going to miss a lot, but this thread should be a good primer.
Before we get into what the "best" machine is, we need to cover some basics about how you even buy one
pic: dorky 20 year old me on delivery day of my first ever machine, 10 years ago


𝚓𝚒𝚖𝚖𝚢@202accepted
@peteoxenham like there was so much tribal knowledge in there, but more specifically on CNC like what goes into the ownership and maintenance of one, and how one should go about picking and choosing a machine
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