Deep thoughts..... Created 20 years ago2004-07-04 20:04:52 UTC by BrattyLord

Actually, your comments form a proof that 0.9 recurring = 1.0.

actually, its true. to rationalize a recurring number:
first the number: 0.9999999... (lets call this x)
the single digit 9 is being repeated.
next, get the recurring digit or series of digits to the left side of the decimal point, in this case, one digit is being repeated, so multiply by 10 to get just one 9 onto the other side of the decimal.
now we have 10x = 9.999999...
next, subtract x from 10x. all the recurring digits cancel out.
0.999999999999 -
9.999999999999 =

---

9.000000000000

so we get: 9x = 9
simplify: x = 1 , and x = 0.9999999999...
therefore:
0.99999999...... = 1
QED

Hey, I remember doing that!

0.9 recurring = 1 because it's irrational.
There is no way to use 0.9 recurring in any calculation, it's impossible because the gap between 1 and 0.9 recurring is infinitely small. Therefore for all mathematical purposes 0.9 recurring may as well be 1 since that is the only way you can work anything out.

Let's say we did a trial, we want to work out a sum invloving 0.9 recurring.

No matter how many digits you would take yours to I would still be more accurate because I would only be 0.000.........001 away from it whereas you would be an infinite distance away from it.

I love explaining shizzle.

0.999999999.... = 1 because of the proof above.
not anything else

Hey, I remember doing that!

for me, last year, grade 11 maths C.......im surprised i remember it

Eh..I give up...maybe I was wrong afterall lol.

I dont think anyone is completly wrong here, just have bits and pieces of information. Always nice to have a little philosophical debate.

Well i guess the next step is upgrading our math system right?
I mean we can only bo so accurate with our current srt-up.. just imagine what other races are doing (non human, out in the universe somewhere <back on that topic again>)

That's what I was getting at. Other more advanced species probably have a better math system, which is why they are more advanced. And don't tell me that there can't be space life..please, there are billions of solar systems in billions of galaxies, the odds are that there is at least ONE other planet which can support life. Do you realize how flexible an organism can be? The planet can be hot, cold, etc, but if it has the building blocks something can live.

Elon: Thats not time travel, thats just being slightly accelerated in time like some astronaughts experiance, there is a big difference.

Thats the only way to travel through time though, and whats the diffrence, you'll end up in the future! Well at list modern pshycis tell thats the only way...

I imagine ff you were going the speed of light, turning sround would prove quite difficult.

0.999999999.... = 1 because of the proof above.
not anything else

Uh, he said the same thing, actually, really.

the odds are that there is at least ONE other planet which can support life

Part of the drake equation predicts that chance is small.

Civilizations of our galaxy supporting intelligent life = R*fp*ne*fl

where

R is the rate of star formation in our galaxy
fp is the fraction of those stars which have planets
ne is average number of planets which can potentially support life per star that has planets
fl is the fraction of the above which actually go on to develop life

edit: the equation doesnt even consider contact with other galaxies

thats pretty neat stuff...
I can add another variable to that equation. a couple really

Will we be able to translate their language? (vica versa)
Will they be hostile?
Will WE be hostile?

Do they have a giant ship capable of wiping out all life on earth?

They probably do if they had the technology to get to our planet.

Then again, if you're so technologically advanced that you could hunt down our planet, find the means of travelling there, and actually arrive;

Personally i think they would be studying us.

looks up

I just love numbers, remember this SOCATOA for Pythagoras theorem ?
its a tool for the rule.
and remember the Isosceles triangles,
(cos C = 1 - 2c over 2a)
Just like pythagoras and his students, I to believe that everything is related to numbers and everything can be predicted and measured in rythmic patterns or cycles.
Time travel is possible but INERTIA (The tendency of a body to resist acceleration; the tendency of a body at rest to remain at rest or of a body in straight line motion to stay in motion in a straight line unless acted on by an outside force.) makes it impossible for the human body to do so. You would have to travel at the speed of light to reach the outer solar system, even if this was possible if you traveled for 8 solar hours at the speed of light and returned, you would still be the same age, but everyone else on earth would have aged around 8 years.

heh.. i could think of one good use for this, but i better keep my mouth shut



Oh yes. SOCATOA
our friends the sin cosine and tangent

Im doing logarithms right now in calc. Easiest things to do but since the invention of the calculator they're really obsolete.

Our galaxy don't have any other planets that support life. I heard that every solar system was checked and it was found out there was not one star that is cappable to have life in it.

Well doesnt it suck to be them
I cant wait until we try to colonise mars. How incredibly cool is that going to be?

I just love numbers, remember this SOCATOA for Pythagoras theorem?

Maybe you don't. SOH CAH TOA, perhaps?

HeHe, I wrote that like it sounded lol (soz)

Maybe Seventh would remember "Pairwise Orhagonal Vectors"
and what is relative to Euclidion Geometry ?

uhhhh... would that be like great circles and such??
like the great circle being a 2-d plain across the center of a 3-d sphere?

Our galaxy don't have any other planets that support life. I heard that every solar system was checked and it was found out there was not one star that is cappable to have life in it.

How could we possebly know?
I mean, we can't just check a star and say "Oh, there is no chanse that there is any life in that system"
If there can live bakterias on mars, there could be bakterias on other planets in our galaxy too, even though the envioment / the distance from the star is far.
Bakterias can survive alot..
I would be far away from supprised if we found life on an other planet in our galaxy.
We can't know for sure that there is no life out there since we have not been there, and we do not know anything about the planets wich cirkles around the stars we can see on the sky.

Just my opinion.
I don't believe in that they have checked every solar-system in the galaxy since there are over a million stars in there.

Maybe Seventh would remember "Pairwise Orhagonal Vectors"
and what is relative to Euclidion Geometry ?

Nope, never heard of them.

Since the universe is infinite, it would be impossible for it to have a center.

Well, according to einstein, the universe is infinite, but still, it isn't.
Sure, in maths it all makes sence.
Infinite + 1 = Infinite
Infinite - 1 = Infinite.
(Jillberts Hotell)

What I have read is that our universe once was as big as the sice of a proton devided into 100000 peices, one of these peices where the universe.
Anyways, it was so small it created a "Singularity" life if something big was there before, and it had collapsed.
Now, the whole thing explodes and the "walls" of the universe expands and flies out into the infinite.
It just keeps expanding.
BUT, it has a end wich can't be seen or touched.
According to einstein:
If we travell stright out into the space to find the expanding wall of the universe, we will never find it, we will, eventually be on the exact location as we started.
Why?
The universe is bended.
He compared the universe with earth.
If you walk around the earth you will never find an edge, you will just go around.
The universe is infinite, even though it isn't!

As somebody else said
"The universe is not just very hard to understand, It is TOO hard to understand for a human mind"

so its kinda like those warpy thingys in pac man
you go in one side and out on the opposite side =]

"the universe is bent"

reminds me of black holes again... black hole's gravity is so strong that light bends when passing anywhere near its center of mass.

I didn't restrict my post to just our galaxy, kasperg. There are billions of galaxies. I also didn't say we would come in contact with them.

I'm having trouble understanding einstein's theory. You can't compare the universe to earth. Earth is one big rock that holds you on it as you walk around. The universe is just space. If you were randomly placed in any spot in the known universe, the odds are high that you would be so far away from anything, that all you would see around you is blackness. You can compare yourself moving in space to a galaxy moving in space. Are you saying that every galaxy in the universe is eventually going to travel back to where it used to be?

reminds me of black holes again... black hole's gravity is so strong that light bends when passing anywhere near its center of mass.

Yeah, that is really interesting.
All gravity infects the lights movment I think..
But in the center of a black hole there is a point of "Singularity" wich is unlimited gravity, so the gravity in the middle of a black hole is so strong, that no light can just "Pass by"
It sucks in the light, and it is so strong that the light can't get out again.
Wich is good in a way..
If we would be able to (Maybe in the future? I don't think so though..)
fly around far out in the space, we would be able to see a black hole, even though it is black.
We can see it because of the gravity.
When it sucks in all of the light wich passes by, a ring of light is created around the black hole, wich might alarm you.

I'm having trouble understanding einstein's theory. You can't compare the universe to earth. Earth is one big rock that holds you on it as you walk around. The universe is just space. If you were randomly placed in any spot in the known universe, the odds are high that you would be so far away from anything, that all you would see around you is blackness. You can compare yourself moving in space to a galaxy moving in space. Are you saying that every galaxy in the universe is eventually going to travel back to where it used to be?

Not what I ment exacly.
The earth thing just explained that, walking straight out in to the space, would be exacly like walking around earth, or a large globe.
You would eventually stand on the point you started from.
The galaxy thing,, I don't know about that, but it seems posseble if this bended universe thing is true.

If all galaxies "Flies" away from eachother, they will meat on the other side of the bended universe, and then collapse into one great point of singularity.
And then it all starts over again.
A theeory sais that the universe once just was a point of singularity.
And then it exploded (big bang).
So, when the galaxies collaps again and creates this singularity due the overflow of mass, it might start up an other universe!

I don't know though, that was just a guess.

Interesting thoughts.

Now that you explained it a little better, I understand it now. It also explains all the issues I had with my other theories.

Black holes don't suck in all light, Just the stuff closest to it. If you looked right at a black hole in space, and were just close enough to resist it's gravity, you would see stars on the other side of the black hole in a "bubble" around the center of the invisible mass. The gravity bends most of the light, and only sucks in the closest light. It's hard to describe the effect, because I saw it once in a video and it was just too cool. It looks sort of like a magnifying glass is being placed over space.

I have this book that explains everything in the galaxy. Its called 'Eyes into the universe" or something along the lines of that

(if you dont beleive me, check amazon.com)

Anyway i lent it to my friend but when i get it back, i can quote some things from the book for you guys. It explains a lot about mostly everything.?

Black holes, dark matter, quasars, redgiants, white dwarfs, novas super novas, light travel etc..

Black holes don't suck in all light, Just the stuff closest to it. If you looked right at a black hole in space, and were just close enough to resist it's gravity, you would see stars on the other side of the black hole in a "bubble" around the center of the invisible mass. The gravity bends most of the light, and only sucks in the closest light.

No, not all light, sorry if you missunderstood me.

But, can you really see through a black hole?
I don't know about that.. I mean, it has unlimited gravity.
Or maybe I missunderstand you. :S
The "bubble" you are speaking about, do you mean the ring of light I talked about, wich appares around the singularity point in a black hole?

Anyway i lent it to my friend but when i get it back, i can quote some things from the book for you guys. It explains a lot about mostly everything.?

That would be cool.
Maybe you could quote black matter for me be cause, well, I've read so much about astrophysics, but I don't know anything about darkmatter, or antimatter.

Ah, just looked up darkmatter.
For those who do not know, it is simply matter, but it catch nor absorb light, and therefore it is inviseble.
Mut it has mass, and mass = gravity, so, you can dettect dark matter by checking the gravity.

I mean the light is coming towards the black hole, and it bends around it, going to your eye.
---0------it curves around the edges and continues it's path. It's hard to describe.

Why do men have nipples?

It's hard to describe

It is, isn't it, ^^

The universe is not just very hard to understand, It is TOO hard to understand for the human mind

But, I'll try to see if I've understood.

You stand infront of a black hole, light flies by from behind you, aimed at the black hole.
The black hole bends the light back at where you stand, like a U-curve.
Something like that?

Just my opinion.
I don't believe in that they have checked every solar-system in the galaxy since there are over a million stars in there.

There are billions of stars in the galaxy.

Even if there was one solar-system, not including us, in the galaxy they couldn't see if on a star there are creatures or not. The closest solar-system to our planet is 6 light years away, which means it takes the light 6 year to get from there to here. Because it takes the light 6 years to get here we see what happend 6 years ago on that solar-system. Just think how many years back do we see on the farst solar-system.

They checked the locations of the stars in the solar-system, their orbit and their distence from the sun in that solar-system... ect
They didn't check each star.

I got one question for you guys on black holes- Do you really think they look like what they show in many movies? A black weirl something? For you should all know it's looks like a black star. As for the ring of light around the black hole- Even if there is a ring we wont be able to see it, for what you are saying the light is trapped in there and it never comes out. If it doesn't get to our eyes then how do we see it.

Geez Elon... that post makes no sense at all.

Call me crazy.

Muzzle you're crazy!

What didn't make sense in the post?

he means the further away a planet/star/galaxy/watever is, the earlier in time we see it.
if a galaxy is 2 billion light years away, the light takes 2 billion years to reach us, therefore we will see the galaxy as is was 2 billion years ago, and in 2 billion years from now, we will see it as it is now.
he is implying that life may have formed within those 2 billion years and we cant see it because we see the galaxy of 2 billion years ago and vice versa for the galaxy viewing us.

Well interpreted Penguinboy, I read it as "someone left thier light on in the car park 6 years from now" (joke)

Madcow you got it, but have the light come from the other direction. It just curves around the obstacle.
Elon like we've said before, a black hole doesn't suck in all light, just the closest, which is why it's invisible. The bubble of stars around it is there because the BH's immense gravity is bending the light coming at it that's all. It's not a halo of light, it's as if the BH was surrounded by curved glass, and you are looking through the glass at other stars.

So Elon does that mean that we are seeing in the night sky is what happened millions of years ago, what do you think about this theory.. the comets we know that are flying around in orbit in our solar system are particles of rock and ice that came from the big bang theory and have traveled millions of light years to reach us and will one day hit the earth.
imagine in years to come we see an object heading for our solar system that is ten times larger than our galaxy, we see it in real time but the image is 3 million years old, would we be able to predict when the impact will take place, or will it take that long that:
A. We/the human race, have already perished at our own hands.
B.We have evolved over the millions of years and have the technology to avoid the situation.

[just a thought]

Within that time period, the caldera at yellowstone national park will probably have exploded, destroying everything between there and tennesee. It will lower the global temperature 10 degrees or more. Trillions of dollars of damage.

Geez Elon... that post makes no sense at all.

He's a pro at nonsence

If it doesn't get to our eyes then how do we see it.

I believe there are ways of spotting black holes with radiation sensors or something similar, I watched a documentary about it not too long ago and the black hole would show up on the graph.

Sorry about my poor gif...Almost it...

Wow, that's pretty neat. You drew it yourself?

Elon.. You're confusing me.
I was the one who said that you couldn't see if a solar system could have life.
You said you could.
Now you say that you can't.
What are you on about?! :S

The closest star is, btw 4,6 lightyears away, not 6, and that's a big differance.

Anyway, just because a star is far away doesn't mean that we can't see any life be cause it is many lightyears away.
There could have been life in, our closest sun system (Alpha centauri or something like that..) 4,6 years ago.
There could also have been life on an other planet one milion years ago!
If someone 200 lightyears away would look down on us now, they would see us run around in funny hats, drinking tea and gets electrisety by rubbing a peice of material against somekind of a stick, gets a sparkle and thinks it is cool.

We can't see if there are any life in any other solarsystems, YET.

There are no Earth like planets in Alpha Centauri so there can't be any living things like us.

Will we be able to translate their language? (vica versa)
Will they be hostile?
Will WE be hostile?

oh yeah, we'll frag them real good...

But we can estimate acording to the location of the star, orbit and distence from the sun.

So Elon does that mean that we are seeing in the night sky is what happened millions of years ago, what do you think about this theory

If we see suns that are a million light years away then yes. The north star is 400 light years away from us.

Nemostein, if you look at a black hole do you see yourself? In your drawing it is so, for some of the light that bouces off you returns back to you.

We can't see if there are any life in any other solarsystems, YET.

No we can't, but we can estimate if there are life in there acording to the location of the planet, his orbit and the distence between it and that solar system's sun...ect