16
   

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.
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
tsarstepan
 
  2  
Reply Tue 3 Mar, 2020 01:41 pm
@izzythepush,
0 Replies
 
tsarstepan
 
  2  
Reply Mon 9 Mar, 2020 10:33 am
Rays of light clearly qualify for AARP.
0 Replies
 
Leadfoot
 
  2  
Reply Wed 11 Mar, 2020 06:10 am
@tsarstepan,
Quote:
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.

My third ex would claim that as evidence that the vanilla tree stank of the faint scent of divinity and do a google search for incense.
0 Replies
 
Setanta
 
  2  
Reply Wed 11 Mar, 2020 07:12 pm
@chai2,
Not all girls . . . my great-grandmother died in 1955 at the age of 105. I was not yet five years old. I was born in 1950, she was born in 1850. She was 49 years old when my grandmother was born.
Leadfoot
 
  0  
Reply Thu 12 Mar, 2020 05:20 am
@Setanta,
We were *that* close to not have'n you around.
Glad you are.
tsarstepan
 
  2  
Reply Fri 13 Mar, 2020 01:00 pm
@Leadfoot,
tsarstepan
 
  1  
Reply Mon 16 Mar, 2020 07:32 pm
@tsarstepan,
tsarstepan
 
  1  
Reply Sat 11 Apr, 2020 11:08 pm
@tsarstepan,
tsarstepan
 
  1  
Reply Wed 22 Apr, 2020 07:48 pm
@tsarstepan,
So Your Sourdough Starter Failed? That's OK, Science Needs It
https://imgur.com/TrQ4Xoq.jpg
tsarstepan
 
  1  
Reply Fri 24 Apr, 2020 10:40 am
@tsarstepan,
0 Replies
 
 

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