Go Back   EcoModder Forum > Off-Topic > The Lounge
Register Now
 Register Now
 


Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-15-2021, 05:50 PM   #21 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,561
Thanks: 7,736
Thanked 8,554 Times in 7,041 Posts
Whoa dude, have you ever really looked at you hand....

You might pick a video from www.youtube.com/results?search_query=planck+constant (except that Stranger Things excerpt).

As for the Earth cooling: Micronova.

__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-16-2021, 09:47 AM   #22 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,043
Thanks: 462
Thanked 1,103 Times in 973 Posts
If you can assign a number to something, or measure it, then it must be possible to go colder than absolute zero or conversely maximum heat. But how would you know?
  Reply With Quote
Old 01-16-2021, 10:57 AM   #23 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,390

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.68 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 4,187
Thanked 4,378 Times in 3,353 Posts
Quote:
Originally Posted by Piotrsko View Post
If you can assign a number to something, or measure it, then it must be possible to go colder than absolute zero or conversely maximum heat. But how would you know?
Absolute zero is theoretical, and it simply means the atoms have stopped moving entirely. I've heard of a theory of less than absolute zero, but I don't know how you can stop motion more than completely.

There was a cool documentary called the Quest for Cold that showed the history of cold and the quest for near absolute zero and the neat property of matter at those temperatures.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 01-17-2021, 05:12 AM   #24 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
An ice age will only happen when CO2 levels are well below 250 ppm.
A volcano might bring the temperature down for a while due to the ash, but it will also likely add more CO2 so once the ash has washed out of the atmosphere we're worse off than before.

Mauna Loa Observatory measured an average of 414.02 ppm for December 2020, up 2.26 over one year. COVID-19 might have slowed the growth a little, but that's nowhere enough to stop the trend.
Fear for an impending ice age is completely off the mark.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
Old 01-17-2021, 10:33 AM   #25 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,950

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 1,035
Thanked 536 Times in 430 Posts
Quote:
Originally Posted by RedDevil View Post
An ice age will only happen when CO2 levels are well below 250 ppm.
A volcano might bring the temperature down for a while due to the ash, but it will also likely add more CO2 so once the ash has washed out of the atmosphere we're worse off than before.
Maybe. CO2 has a greenhouse effect, but from what I've read scientists still believe that volcanic activity has caused ice ages in the past including during a similar hot, high-CO2 period, the Jurassic period transition to an ice age.

The last "mini ice age" supposedly took place in the 6th century, lasted 125 years and is also thought to have been caused by volcanic activity.
__________________
  Reply With Quote
Old 01-17-2021, 12:53 PM   #26 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,561
Thanks: 7,736
Thanked 8,554 Times in 7,041 Posts
Quote:
Maybe. CO2 has a greenhouse effect...
There're particulates, aerosols and gasses.

Quote:
Aerosol
An aerosol is a suspension of fine solid particles or liquid droplets in air or another gas. Aerosols can be natural or anthropogenic. Examples of natural aerosols are fog, mist, dust, forest exudates and geyser steam. Examples of anthropogenic aerosols are particulate air pollutants and smoke. Wikipedia
What have we learnt from the CCP virus? Anthropogenic forcing went down and temps went up. Use of fossil fuels (or maybe just fewer jet contrails) cools the planet. [citation needed]
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Old 01-17-2021, 02:34 PM   #27 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
Quote:
Originally Posted by Isaac Zachary View Post
Maybe. CO2 has a greenhouse effect, but from what I've read scientists still believe that volcanic activity has caused ice ages in the past including during a similar hot, high-CO2 period, the Jurassic period transition to an ice age.

The last "mini ice age" supposedly took place in the 6th century, lasted 125 years and is also thought to have been caused by volcanic activity.
From Wikipedia:
Quote:
Major impact craters [that occured during the Jurassic period] include the Morokweng crater, a 70 km diameter crater buried beneath the Kalahari desert in northern South Africa. The impact is dated to the Jurassic-Cretaceous boundary, around 145 Ma. The Morokweng crater has been suggested to have had a role in the turnover at the Jurassic-Cretaceous transition.
What happens when a really big meteor strikes the Earth is that the Earth loses a substantial part of it atmosphere. Like the one 65 million years ago, before which the air at sea level was twice as dense as today and contained 30% oxygen; after the impact it was less than 1 Bar and just 15% oxygen. This does not only kill off all species that came to depend on the higher pressurized oxygen rich air, but also removes much of the greenhouse gases and mechanism, lowering the temperature substantially over time.

Some scientists have wondered how the giant pterodactyls and insects of the past could fly at all; they would not be able to in current conditions. Dense air and high oxygen levels change everything though.

We may need to cool the Earth but we should be careful if that involves creating craters of 70 km diameter.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
Old 01-17-2021, 03:19 PM   #28 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,561
Thanks: 7,736
Thanked 8,554 Times in 7,041 Posts
....or even seven kilometers.

How do you distinguish an asteroid from a micronova? Which one happens on a 12.5K year cycle?
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Old 01-17-2021, 03:32 PM   #29 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,950

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 1,035
Thanked 536 Times in 430 Posts
Quote:
Originally Posted by RedDevil View Post
We may need to cool the Earth but we should be careful if that involves creating craters of 70 km diameter.
It definitely should be a last resort. But on the topic of artificially cooling the Earth it's still theoretically an option I would think.

Here's my list of theoretic options (not that I really know anything ):
  • Reflective/shade cooling
    • Surface reflection (painting everything "white" including "white" infrared and ultraviolet. More snow/white sand covered ground).
    • Atmospheric reflection/shade (ash or other particulates in the upper atmosphere. More cloud formation).
    • Orbital shade (lots of satellites with ginormous mirrors. Maybe blow up the moon so it forms a ring that always shadows the Earth at some point)
  • Radiant cooling
    • Greenhouse gas reduction.

Of course the easiest way to lower global temperatures would be by reducing or eliminating artificial greenhouse gas production and planting more trees.

But after that my guess is the next easiest way to effectively reduce global temps would be to throw ridiculous amounts of dinamite down active volcanos from time to time to create a flow of ash into the atmosphere. Although not very practical or easy to do, and it may be totally impractical or impossible. But I don't know what would be easier or more practical.

I don't foresee painting all buildings white fixing the problem, although every little bit helps of course. And trying to shade the Earth with satellites would be an impossible endeavor, as would be trying to set up snow making machines in every place it can freeze. Exposing more sand would mean more desertification, which has the disadvantage of creating less cloud cover and less plants to pull CO2 from the atmosphere.

Of course I'm no scientist. Maybe blowing up the moon is a valid option...
__________________
  Reply With Quote
Old 01-17-2021, 04:48 PM   #30 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,561
Thanks: 7,736
Thanked 8,554 Times in 7,041 Posts
Quote:
It definitely should be a last resort
Wait! The crater is anthropogenic? That would be an act of war.

Quote:
Of course the easiest way to lower global temperatures would be by reducing or eliminating artificial greenhouse gas production and planting more trees.
It's not the gases, it's the aerosols and particulates. Plus methane is a more potent gas than CO2.

The solution to living in Earth's environment lies between people's ears. Needless destruction and operating at cross-purposes would be good places to start. Less trying to steer the climate and more prepping for the Black Swan events that can't be predicted. Hotter, colder, darker, blindingly bright.

Quote:
Of course I'm no scientist. Maybe blowing up the moon is a valid option...
Well, thank goodness for that then.

__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com