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Everything posted by fresh
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COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
Thanks for telling me, or I still don’t know it. -
COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
Thanks iNow. -
COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
Could you do me a favor? list the reputable media as much as you can. Thanks. -
COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
i really don't know !!! -
COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
i am still learning, why this person is too hard on me ? PL be kind. how do i know that website ? i am foreigner who is learning. it is TOO hard on me. unfair !! if i know that website is filthy and lying conspiracies, i did it on purpose, it is my problem, but i know Nothing about that website !!! -
COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
Is Dr.James Lyons-Weiler a real virologist ? -
COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
this website provides some information including coronavirus's genetic sequence which is too technical for me to understand. we need experts to verify it. https://www.infowars.com/white-house-asks-scientists-to-investigate-whether-2019-ncov-was-bio-engineered/- 96 replies
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Is it right to put this news here?? If not, PL correct me. Thanks. https://www.yerepouni-news.com/2020/02/11/over-350000-sign-petition-calling-for-who-chiefs-resignation/
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COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
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COVID-19 outbreak (caused by SARS-CoV-2)
fresh replied to ScienceNostalgia101's topic in Microbiology and Immunology
how long can novel coronavirus survive in air ? -
It is said the confirmed cases is more than 150,000, and some experts doubt the virus is from lab. It means it’s origin may be from bio-weapon.
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The real figure is Not in that tracker.
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mainland China confirmed cases is 7734. death 170.
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Thanks. But it is more than that figure. mainland China confirmed cases is 6090 death 133.
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you are right. what's the clever work to make it transparent ?
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and this one is also added manganese ? manganese dioxide is a decoloring agent. why i think it looks like amber-brown added by carbon dioxides ?
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thank you. it looks like .. Carbon Oxides Amber-Brown why add it to utensil ? is it good for health ? What Causes Color in Stained and Colored Glass_.html why need add manganese ?
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I am given a tempered glass dinnerware which can be used in microwave. The problem is it is tea-color. I have no idea why it is tea-color ? what is the chemical added to become this color ?
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Competitive Eaters
fresh replied to Carl Fredrik Ahl's topic in Anatomy, Physiology and Neuroscience
will competitive eaters die early ? such as stomach cancer and pancreas cancer. -
is non-woven Polypropylene harmful to our health? is it toxic ?
fresh replied to fresh's topic in Applied Chemistry
Thanks, John. -
is non-woven Polypropylene harmful to our health? is it toxic ?
fresh replied to fresh's topic in Applied Chemistry
lemon is a mixture and polypropylene is a compound. -
is non-woven Polypropylene harmful to our health? is it toxic ?
fresh replied to fresh's topic in Applied Chemistry
yes, mixture can be separated physically, while compound need a chemical reaction to separate. -
is non-woven Polypropylene harmful to our health? is it toxic ?
fresh replied to fresh's topic in Applied Chemistry
why ? i can smell grass, apple, lemon, earth, wood, plastic,camphor, vinegar, china ink, metal and so on... are they impurity ? what's the definition of impurity ? I don't mean food. Ok, any bag smells bad is not a good bag. -
is non-woven Polypropylene harmful to our health? is it toxic ?
fresh replied to fresh's topic in Applied Chemistry
Drp said, "Probably so small amounts as not to be harmful although you can almost always smell new plastics. The monomer is propylene I think (thus poly-propylene)." so i guess it is the smell of propylene. @ polypropylene doesn't contain nitrogen,. Nobody says poly-propylene contain nitrogen. i am confused. I and my mom both smell it like unpleasant chemical, and anything smells bad is not a good thing, maybe it is toxic, at least that bad smell makes people feel uncomfortable. -
is non-woven Polypropylene harmful to our health? is it toxic ?
fresh replied to fresh's topic in Applied Chemistry
Thank you guys, I am relieved. it smells of propylene. I decide to let it lie in the sun for a few days.