Can there be a consistent 'mirror existence' where all such examples do have applicable meaning?
Short answer: no, since in their world our -5 would be their +5 (and vice versa).
Long answer: you are talking about parallel universe(s) which could exist in a mathematical model.
However there is no way we can prove or disprove the existence of such a world, the same way we cannot know what happened before the "big bang" or what's outside of our universe.
The math works, but that doesn't mean I have actual, physical negative frequencies.
Exactly. Two more simple examples:
1st: Pythagoras
a^2 + b^2 = c^2. Let a = 3 and b = 4.
Which leads to c^2 = 25, result is +5... Not quite: (and congrats to those who could follow without a calculator;-) There are two results, +5 and -5 mathematically, however, only one, +5, makes sense in a physical world, since there is no negative length.
2nd: Give me a few (hundred?) years and I'll come up with a mathematical model where the sun, planets and the rest of the universe is circling around the earth.
It wouldn't make sense whatsoever, but mathematically it still would be true.
Has it ever been?
FB always reminded me of geocities (for those who remember):
"Hello, my name is Jenny, I'm 13 and this is my cat, and I'm interested in dancing."
We've got to stop the killing now.
Probably 99% of animals are eaten alive. We need to kill all whales to prevent them from eating billions of plankton!
(and guppies from eating worms: kill all guppies!)
Next shocking truth: 100% of animals are dying alive!
... but shouldn't the universe expand at the speed of roughly 300,000 km/s (i.e. speed of light - and information) from any given point of the universe?
Someone enlighten me please.
I started programming in C mid 80s. K&R C that is. No type-checking etc, "lint" was your friend.
Late 80's I read about C++ and there were two thoughts that came to my mind simultaneously:
a) C++ is a wonderful language to write efficient, fast and comprehensive code.
b) C++ is a wonderful language to write extremely bloated, slow and unmaintainable code.
Sorry to burst a bubble, err, balloon here for you.
Pure hydrogen doesn't go "boom" in normal air. Sure, it will result in nice flames, but normal air doesn't supply enough oxygen for a big boom.
I've tried both, hydrogen and a mix of hydrogen and oxygen as a teen, and now guess which one resulted in a one week detention by my parents.
They (we) seem to have a (genetically inherited?) ability to switch to bypass mode once the rant/chatter starts: In one ear, out by the other, without any significant effects.
Some females however claim that's only possible because there's nothing between the ears.
Point is that we now know that planets were formed at a very early stage of the universe.
As for the planets being metal poor, it isn't a surprise really, considering the age of the planets.
Let's put aside that for astronomers everything beyond helium is a "metal", we are talking about iron (Fe) and heavier elements.
Suns can only create elements up to iron in a fusion process, everything else is created in a (super) nova, and those were only starting at the beginning of the universe.
The real surprise here is that planets were formed without (or with few) heavy elements.
Slashdot Mirror
Well, some of them might have had some fun.
Might I recommend, as much as is possible, pack your trash.
On the contrary. If I had the chance to go to Mars today, I'd take with me:
A recent newspaper, a can of beer and a half-eaten sandwich.
Then I'd place them somewhere were Curiosity was likely to spot it, and return to Earth silently.
And probably run around with a huge grin on my face for the rest of my life.
thanks for proving my sig ;-)
nit-picking: You are right about planets, but what about our galaxy? ;-)
Anyway, moot points, you got mine, I got yours
Can there be a consistent 'mirror existence' where all such examples do have applicable meaning?
Short answer: no, since in their world our -5 would be their +5 (and vice versa).
Long answer: you are talking about parallel universe(s) which could exist in a mathematical model.
However there is no way we can prove or disprove the existence of such a world, the same way we cannot know what happened before the "big bang" or what's outside of our universe.
http://en.wikipedia.org/wiki/Double-slit_experiment
Personally, I'd prefer the double slut experiment.
You are confusing units (and vectors) with math and distances
The math works, but that doesn't mean I have actual, physical negative frequencies.
Exactly. Two more simple examples: ;-)
1st: Pythagoras
a^2 + b^2 = c^2. Let a = 3 and b = 4.
Which leads to c^2 = 25, result is +5... Not quite: (and congrats to those who could follow without a calculator
There are two results, +5 and -5 mathematically, however, only one, +5, makes sense in a physical world, since there is no negative length.
2nd: Give me a few (hundred?) years and I'll come up with a mathematical model where the sun, planets and the rest of the universe is circling around the earth.
It wouldn't make sense whatsoever, but mathematically it still would be true.
Has it ever been?
FB always reminded me of geocities (for those who remember):
"Hello, my name is Jenny, I'm 13 and this is my cat, and I'm interested in dancing."
I watched TV for years...
And now you ended up on slashdot, makes you think, doesn't it? ;-)
We've got to stop the killing now.
Probably 99% of animals are eaten alive. We need to kill all whales to prevent them from eating billions of plankton!
(and guppies from eating worms: kill all guppies!)
Next shocking truth: 100% of animals are dying alive!
Holy shit.
... but shouldn't the universe expand at the speed of roughly 300,000 km/s (i.e. speed of light - and information) from any given point of the universe?
Someone enlighten me please.
I started programming in C mid 80s. K&R C that is. No type-checking etc, "lint" was your friend.
Late 80's I read about C++ and there were two thoughts that came to my mind simultaneously:
a) C++ is a wonderful language to write efficient, fast and comprehensive code.
b) C++ is a wonderful language to write extremely bloated, slow and unmaintainable code.
Take your pick.
Sorry to burst a bubble, err, balloon here for you.
Pure hydrogen doesn't go "boom" in normal air. Sure, it will result in nice flames, but normal air doesn't supply enough oxygen for a big boom.
I've tried both, hydrogen and a mix of hydrogen and oxygen as a teen, and now guess which one resulted in a one week detention by my parents.
Especially if you mix hydrogen with oxygen at a ratio of 2:1
Yes. The impact would be a giant flesh light.
Agreed.
However, if it had the size of a little moon, you'd belong to the category "was" by now.
Emphasis on was. ;-)
Anything entering the atmosphere at 50 km/sec definitely belongs to the category "was".
Let me guess: ;-)
You're married for less than three years
Husbands don't need such a device.
They (we) seem to have a (genetically inherited?) ability to switch to bypass mode once the rant/chatter starts: In one ear, out by the other, without any significant effects.
Some females however claim that's only possible because there's nothing between the ears.
you misspelled "congratulations"
a cat somewhere dies to compensate. It all adds up.
What really makes me wonder is why you - and Schroedinger - dislike(d) cats.
They didn't say how they measure intelligence. ;-)
So maybe they add 150 to your default IQ if you don't post on facebook
Our sun has an expected lifetime of 11 billion years. So, maybe.
And I'm not an astronomer either, just an interested layman.
It doesn't matter.
Point is that we now know that planets were formed at a very early stage of the universe.
As for the planets being metal poor, it isn't a surprise really, considering the age of the planets.
Let's put aside that for astronomers everything beyond helium is a "metal", we are talking about iron (Fe) and heavier elements.
Suns can only create elements up to iron in a fusion process, everything else is created in a (super) nova, and those were only starting at the beginning of the universe.
The real surprise here is that planets were formed without (or with few) heavy elements.