Page 1 of 2
Everybody knows that!
Posted: Wed Jan 05, 2011 9:49 am
by Digit
Or do they? I have been accused of living on planet illogica, told that the poster was giving up till I talked sense, you'll get the picture.
So what was it that triggered such comments, from a mod now less BTW.
Simple, I asked, 'what causes an Ice Age?'
Roy.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 9:59 am
by Minimalist
Global cooling?
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 10:10 am
by Digit
Depends on what that means Min. Does it mean a drop in the maximum temps, in the minimum, or the average?
Roy.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 11:07 am
by Minimalist
If the maximum drops and the minimum drops then the average drops by definition.
Bigger question is, what causes global cooling in the first place? Orbital variation? Slight decrease in solar activity?
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 11:30 am
by Digit
If the maximum drops and the minimum drops then the average drops by definition.
Not so my friend, there are ways for the average to drop without either falling.
Roy.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 1:07 pm
by Rokcet Scientist
Digit wrote:If the maximum drops and the minimum drops then the average drops by definition.
Not so my friend, there are ways for the average to drop without either falling.
Amazingly, Roy is right for a change!
But if you replace 'average' by 'median' you're correct, Min.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 1:15 pm
by Digit
Well it had to happen eventually, maybe it will happen to you as well one day!
Roy.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 1:44 pm
by Rokcet Scientist
Don't push it!
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 1:48 pm
by Digit
Oooh er!
Roy.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 1:52 pm
by Rokcet Scientist
...or I'll write to Sinterklaas about you and he will send Black Peter who will stuff you in his big bag and take you away to Spain like the other bad kids!
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 1:58 pm
by Digit
Now that's real nasty!
Roy.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 2:00 pm
by Minimalist
Digit wrote:If the maximum drops and the minimum drops then the average drops by definition.
Not so my friend, there are ways for the average to drop without either falling.
Roy.
How...exactly...would that happen?
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 2:04 pm
by Rokcet Scientist
Yeah, show him, Roy!
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 2:19 pm
by Digit
Longer winters Min. In fact all that is needed for an Ice age is for, year on year, more snow to fall than melts.
Dropping the minimum temps would in fact be counter productive, for example, the poles are amongst the dryest spots on the globe.
Such conditions don't even preclude hot summers, just need shorter ones.
Roy.
Re: Everybody knows that!
Posted: Wed Jan 05, 2011 2:40 pm
by Rokcet Scientist
FAIL!
That doesn't show Min how, while both max and minimum temps drop, the average temp doesn't necessarily drop as well.