header pic

Perhaps the BEST B1G Forum anywhere, here at College Football Fan Site, CFB51!!!

The 'Old' CFN/Scout Crowd- Enjoy Civil discussion, game analytics, in depth player and coaching 'takes' and discussing topics surrounding the game. You can even have your own free board, all you have to do is ask!!!

Anyone is welcomed and encouraged to join our FREE site and to take part in our community- a community with you- the user, the fan, -and the person- will be protected from intrusive actions and with a clean place to interact.


« previous next »
Pages: 1 ... 110 111 [112] 113 114 ... 700   Go Down
Author

Topic: Weather, Climate, Environment, and Energy

 (Read 522392 times)

Anonymous Coward

  • All Star
  • ******
  • Posts: 3187
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1554 on: July 09, 2019, 12:36:43 PM »
I didn't say it clearly. I meant "readily and to scale." And I think I want to add "with renewable energy."

I think we might need to be close to a Type II civilization on the Kardashev scale. A holy-optimistic best case scenario might put us 1,000 years from that, and I am skeptical we have sufficient He to last that long.

Helium balloons are - forgive me - dumb.
« Last Edit: July 09, 2019, 05:44:33 PM by Anonymous Coward »
Logged

Cincydawg

  • Oracle of Piedmont Park
  • Global Moderator
  • Hall of Fame
  • *****
  • Default Avatar
  • Posts: 71465
  • Oracle of Piedmont Park
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1555 on: July 09, 2019, 12:58:43 PM »
He is just He,  Hydrogen is H2 (usually), but I'm sure you know that of course.  One nice thing about He is that it is effectively inert.

We used it a lot in gas chromatography.  It's also used to cool the magnets for MRI and high field NMR.

It does not have an obvious replacement material.
Logged

Anonymous Coward

  • All Star
  • ******
  • Posts: 3187
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1556 on: July 09, 2019, 01:21:09 PM »
Ah, damn. It's noble. I quote "knew" it, but obviously hadn't stayed sharp on a simple thing. Embarrassing.
Logged

utee94

  • Global Moderator
  • Hall of Fame
  • *****
  • Posts: 17653
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1557 on: July 09, 2019, 01:35:15 PM »
I like the noble gases.  They seem so.... regal.

We used argon as our "warmup" gas for ion implanters.
Logged

Cincydawg

  • Oracle of Piedmont Park
  • Global Moderator
  • Hall of Fame
  • *****
  • Default Avatar
  • Posts: 71465
  • Oracle of Piedmont Park
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1558 on: July 09, 2019, 01:52:37 PM »
Argon is handy stuff, and abundant, almost a percent of the atmosphere.  Helium is too light, so it's mean free velocity is higher than escape velocity.  So, it escapes.

Argon doesn't.  Of course there is krypton which is super.
Logged

betarhoalphadelta

  • Global Moderator
  • Hall of Fame
  • *****
  • Posts: 12170
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1559 on: July 09, 2019, 02:15:24 PM »
You can have my beef when you pry it from my cold, dead hands. 

Which, if I continue eating beef at the same rate I currently do, might not take too long ;-) 
Logged

betarhoalphadelta

  • Global Moderator
  • Hall of Fame
  • *****
  • Posts: 12170
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1560 on: July 09, 2019, 02:21:43 PM »
Quote from: utee94 on July 09, 2019, 10:13:04 AM
Austin had a single-use bag ban in effect for a couple of years.  It was fine with me, I just purchased a few cloth reusable bags and went on with my life.

I never dug into it deeply, but after all of that, there were studies that suggested that the amount of material and energy put into making the reusable bags, was considerably more than the single-use plastic bags. And, for those concerned about food contamination, the reusable bags also need to be washed regularly which utilizes still more resources and also limits their useful life.  In the end, it might actually be less environmentally impactful to just use the single-use plastic bags.  But I'm not sure of that, and even though the bag ban has been lifted, I still use my reusable bags.  They're stronger and carry more.
Yeah, we don't have a ban here in CA, but if you want a single-use bag, you pay $0.10 each for them. So we end up with reusable bags.

I have heard the concerns about contamination. And we don't regularly wash our bags. So far so good, but it's always in the back of my mind. 
Logged

Anonymous Coward

  • All Star
  • ******
  • Posts: 3187
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1561 on: July 09, 2019, 03:00:58 PM »
I haven't heard the food contamination concerns either (mold?).
Logged

betarhoalphadelta

  • Global Moderator
  • Hall of Fame
  • *****
  • Posts: 12170
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1562 on: July 09, 2019, 03:11:04 PM »
Quote from: Anonymous Coward on July 09, 2019, 03:00:58 PM
I haven't heard the food contamination concerns either (mold?).

"A joint food-safety research report by researchers from the University of Arizona and Loma Linda University in California found that most reusable grocery shopping bags harbor multiple harmful bacteria. More than fifty percent were contaminated with bacteria, and E.coli was found in over twelve percent of the tested bags. During their study, in a quick survey at a grocery store, ninety-seven percent of shoppers admit that they have never washed their reusable grocery shopping bags."

https://www.thespruce.com/keep-reusable-bags-clean-and-usable-2147015
Logged

utee94

  • Global Moderator
  • Hall of Fame
  • *****
  • Posts: 17653
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1563 on: July 09, 2019, 03:13:49 PM »
Yup, bacteria.  We wash ours regularly, but that absolutely decreases their useful life.

Logged

Anonymous Coward

  • All Star
  • ******
  • Posts: 3187
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1564 on: July 09, 2019, 03:28:32 PM »
If medical school taught me anything, it's that - excepting those who are immunocompromised - bacteria are rarely to be frightened of. Just like nearly all of us carry MRSA in our noses to no (or rare) ill effect, coliform, staph, or listeria in our bags should be mostly meaningless. I wash my produce anyway. This won't change my behavior with reusable bags.
Logged

Anonymous Coward

  • All Star
  • ******
  • Posts: 3187
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1565 on: July 09, 2019, 03:59:28 PM »
Also, of course, the bags have bacteria. No one should have realistically expected them to be sterile. The proper analysis isn't "presence versus absence" and I'd argue it's not "quantification of bacteria" either. The proper analysis is outcomes-based:


  • Do people who use their own cloth bags get sick (presumably we'd be focusing on GI issues and maybe atopic issues too) more than those with single-use bags (plastic or paper)?
  • Do people who wash their resuable bags get less sick than those who don't?


Before doing the experiments, my hypothesis is that these effects are negligible.
Logged

betarhoalphadelta

  • Global Moderator
  • Hall of Fame
  • *****
  • Posts: 12170
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1566 on: July 09, 2019, 04:04:45 PM »
Quote from: Anonymous Coward on July 09, 2019, 03:59:28 PM
Also, of course, the bags have bacteria. No one should have realistically expected them to be sterile. The proper analysis isn't "presence versus absence" and I'd argue it's not "quantification of bacteria" either. The proper analysis is outcomes-based:


  • Do people who use their own cloth bags get sick (presumably we'd be focusing on GI issues and maybe atopic issues too) more than those with single-use bags (plastic or paper)?
  • Do people who wash their resuable bags get less sick than those who don't?


Before doing the experiments, my hypothesis is that these effects are negligible.

Agreed. So far I haven't heard of any widespread epidemics here in CA since they went to the reusable bag thing, so I doubt it's a major issue. 
Logged

Cincydawg

  • Oracle of Piedmont Park
  • Global Moderator
  • Hall of Fame
  • *****
  • Default Avatar
  • Posts: 71465
  • Oracle of Piedmont Park
  • Liked:
Re: Weather, Climate, and Environment
« Reply #1567 on: July 09, 2019, 04:13:45 PM »
Fortunately, we are mostly resistant to common bacteria, else we'd be in trouble.  A guy who worked for me got shigella, they think from "organic" tomatoes.  He stopped coming to work for a few days until he was well enough to call.  He said it was really really bad.  They put him of cipro right at the time everyone was using it because of some outbreak of whatever it was, alleged, powder of something thought to be spreading around by terrorists.  Anthrax.

Sometimes the wife uses the store bags and then puts the bags in our bags because she uses the others for trash under the sink.

Logged
Pages: 1 ... 110 111 [112] 113 114 ... 700   Go Up
« previous next »
 
Support the Site!
Purchase of every item listed here DIRECTLY supports the site.
Living Wedding Guest Book

Smokey Record TShirt