13
   

a2k Science News Depository and Library

 
 
tsarstepan
 
  1  
Reply Wed 29 Jan, 2020 03:11 pm
@tsarstepan,
tsarstepan
 
  1  
Reply Sun 9 Feb, 2020 08:48 am
@tsarstepan,
chai2
 
  1  
Reply Sun 9 Feb, 2020 10:59 am
@tsarstepan,
It looks like Physics Girl has a lot of cool videos. Going to look at them later.
Thanks
tsarstepan
 
  1  
Reply Thu 20 Feb, 2020 11:54 am
@chai2,
Coronavirus Is Contagious, But Kids Seem Less Vulnerable So Far
Quote:
As the case count of coronavirus infections continues to rise in China, the number of reported infections among children is remarkably low.

"We're seeing [about] 75,000 total cases at this point, but the literature is only reporting about 100 or so pediatric cases," says Terri Lynn Stillwell, a pediatric infectious disease expert at Mott Children's Hospital at the University of Michigan.

It's possible that many more kids are infected but don't get sick enough to seek medical treatment. It's also possible that some infected children may develop no symptoms at all.
Leadfoot
 
  2  
Reply Thu 20 Feb, 2020 04:19 pm
@tsarstepan,
Sounds like the opening chapter of a Stephen King novel.
tsarstepan
 
  1  
Reply Sun 23 Feb, 2020 11:00 am
@Leadfoot,
chai2
 
  2  
Reply Sun 23 Feb, 2020 01:41 pm
@tsarstepan,
Jesus, it's amazing we live as long as 40.
We're basically useless from a biological viewpoint by that time. Well, women at least.
0 Replies
 
Leadfoot
 
  1  
Reply Sun 23 Feb, 2020 03:46 pm
@tsarstepan,
Aw, they're for temporary use only anyway.
tsarstepan
 
  1  
Reply Mon 24 Feb, 2020 09:34 am
@Leadfoot,
What’s the World’s Worst Smell?
Possibly thioacetone....

On the flipside:
Quote:
One of the substances with the lowest odor detection threshold is vanillin, the main component of vanilla extract. Estimates vary, but its odor detection threshold is probably around 0.1 or 0.2 micrograms per cubic meter, significantly lower than ethyl or methyl mercaptan. That means that one or two oil tankers full of vanillin could conceivably be used as an air freshener powerful enough to give the entire Earth a slight scent of vanilla.
izzythepush
 
  1  
Reply Mon 24 Feb, 2020 10:08 am
@tsarstepan,
There was a scientist who dealt with smells on the radio the other date. His favourite scent was Juniper, because he said it worked best at clearing out the lab smells they could do without.

2,4-dithiapentane is used in truffle oil, but it's also found in bad breath, bad feet and farts. And when they've been using that, it fills up the lab and they need to get shot of it quick.

https://en.wikipedia.org/wiki/2,4-Dithiapentane
0 Replies
 
 

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