Life in Outer Space

[paadness]

The Mad scientists believe life exists in outer space. They make us believe the aliens would be more intelligent and advanced. This makes us think of conquering the planets.

Atleast in our solar system no life exists except the earth. Don't ask me for proof but life may have existed earlier but again not much possibility of it.

The thirst for new planets will make the earth dry. To reach far away destinations, we require great energy. Large part of it wil be spent in the future to reach other planets with no chance or surviving there.

This whole Solar system means alot but if all of it was made for the humans(coz humans are the most loved creatures of God), why is it almost impossible to conquer the space.

1 thing u'll all have to agree is the fact that the third world will be gone. It would be like a desert where most of the resources would be vanished. To conquer the space, u need to have a continues supply of energy.

Once that energy is gone, u can't replace it.

It would be a disaster if all these efforts fail, coz i believe in my heart that its highly unlikely someone's gona find a new home in the far space or any aliens would come to us and give us infinite resources.

 

[unipidity]

I only reply cause bumping it to the top of the page when its so near isnt too much of a crime. Can someone either lock, or even better excise completely this thread?

 

Originally posted by: unipidity
I only reply cause bumping it to the top of the page when its so near isnt too much of a crime. Can someone either lock, or even better excise completely this thread?

i would, but im not even sure what he is trying to say.

 

[DrPizza]

Originally posted by: FallenHero

Originally posted by: unipidity
I only reply cause bumping it to the top of the page when its so near isnt too much of a crime. Can someone either lock, or even better excise completely this thread?

i would, but im not even sure what he is trying to say.

I think he's babbling. Maybe a smart 6th grader? (alternatively, a dumb high school student)

Anyway,
1. It's not the mad scientists who believe life exists elsewhere in the universe. There are more suns than there are grains of sand on all the beaches and in all the deserts on earth. It'd be silly to think that life couldn't have started elsewhere. And, AFAIK, even the Bible makes no claim to the uniqueness of life on earth (in case you're a religous person.)

2. We're still looking for life in the solar system. Hence, all the hoopla over the possible discovery of signs of life in material with a Mars origin a few years ago. Because of "strange" life forms at volcanic vents in the ocean that do not rely on oxygen or light from the sun, it is speculated that there *could* be life on one of Jupiter's moons (I can never remember which one... Europa? The one with the crust of ice, but where satellite photos show that clearly the crust of ice is over water in the liquid form, with the planet heated by stresses from Jupiter's gravitational field.

3. wtf are you talking about "thirst for new planets." Also "we require great energy" shows that you have no inkling of the energy available from E=mc^2.

4. The difficulty of "conquering" space comes from the distances involved compared to the speed we humans, in our infancy of space flight, are capable of. However, one of the objects we created has finally left the solar system. Nonetheless, how many years did it take us to go from Gutenberg's invention of the printing press to computers with word processing? 550 years? (c. 1450) How long have we been sending objects into space? First one was in 1947? If you haven't noticed, technological innovations are not occuring on a linear scale. The rate of progress is increasing all the time. While no one can say for sure where we'll be in space exploration 550 years from now, it's easy to understand that it'll be a heckuva lot farther than we are now.

5. Yeah, I agree with you that Earth will be gone someday. If you read about the sun, and it's finite lifetime as the supplier of warmth to our planet. (Or rather, one day we're going to have too much warmth as our planet is cooked (and I believe absorbed into the sun.)
However, for this continous supply of energy, again, heard of E=mc^2? Plenty of hydrogen floating around in space, do be gathered by some sort of spacecraft equipped with a big scoop in the front. Plenty to supply far more energy than you can even imagine. Ever hear of Tsar Bomba? That's the energy from atoms. 1 bomb, around a 50 megaton equivalent of TNT. Dropped from a plane. Not that big of a bomb... 50 megatons = 50 million tons of TNT... 10,000,000,000 pounds of TNT... 10 BILLION pounds of TNT. Do you have any idea how much energy there is in one pound of TNT? 1 pound is enough to raise the temperature of 36 pounds of water from freezing to boiling. That means, one bomb, exploded at half its possible yield, can heat 360 billion pounds of water from freezing to boiling. I don't know about you, but that sounds like a lot of energy to me.

6. And, no, there are no "infinite" resources, so of course no alien population is going to give them to us. There is a finite number of atoms in the universe. And, of course it's close to impossible to find another "home" for us in the universe. At present time, it's highly unlikely we'll ever be able to cross such distances within even a few lifetimes. (of course, excluding relativistic effects on space travel at close to the speed of light)

 

[paadness]

Large part of the earth is undiscovered, there is plenty of stuff to be dug out.

May be new elements which would be quite interesting.

Even if life exists in outer space, what will it mean to us. They cannot be smarter than us. What im trying to say is the effect on people about life in outer space is tremendous.

Movies and games all contributed to make us think we will evetually find a new home.

The whole life is a game. God is the computer user, we humans are predifined codes and perform randomly.

Compare ourselves with Sim games, runinng here and there, finding jobs and everything else. Its all going to end soon BUT there is one final journey left, either Hell or Heaven.

 

[quakefiend420]

Originally posted by: paadness
Even if life exists in outer space, what will it mean to us. They cannot be smarter than us. What im trying to say is the effect on people about life in outer space is tremendous.

They have to be smarter than you...

 

[dopefishzzz]

Originally posted by: paadness
They cannot be smarter than us. .

Wow.

You're dumb.

 

[DrPizza]

Originally posted by: paadness
May be new elements which would be quite interesting.

uhhh, in a word, no. When you get to high school, take a course called "chemistry." Or maybe a course called "physics." Then, learn about a little thing called the "periodic table." It's pretty complete. You'll note that it goes from 1 on up to past 100. Those beyond 100 are man-made and have relatively short lifespans. Even if we found them on earth, which we won't, we're perfectly capable of synthesizing them.

 

[paadness]

Originally posted by: DrPizza

Originally posted by: paadness
May be new elements which would be quite interesting.

uhhh, in a word, no. When you get to high school, take a course called "chemistry." Or maybe a course called "physics." Then, learn about a little thing called the "periodic table." It's pretty complete. You'll note that it goes from 1 on up to past 100. Those beyond 100 are man-made and have relatively short lifespans. Even if we found them on earth, which we won't, we're perfectly capable of synthesizing them.

What do u mean the rest are man made. Short lifespan ur talking about radio active elements and the short life doesnt mean a few days.

It can be months, years and decades before they end up being Lead. May be u should revise your chemistry, elements are already there, we only change thier forms.

 

[f95toli]

The heaviest elements that we can make have lifetimes of nano- or maybe even picoseconds; as a general rule: The heavier the elements the shorter the half-life.
Besides, a nova is needed in order to make anything heavier than iron; the temperature in the centre of the planet is way too low.

As Dr Pizza pointed out, maybe you should study some physics

 

[DrPizza]

How about element #107? Bohrium aka Unnilseptium. Man-made. Half-life is measured in milliseconds, although I believe there is an isotope with a half-life of almost 15 seconds (a heckuva long time, comparitively!)

But, lets go with a mole of the stuff, and a half-life of 102ms for Bh-262.

So, 262 grams of Bh-262... a little more than half a pound of the stuff (.576 pounds)

Hmmm, been a while since I did this..
6.023 *10^23 * (1/2)^n = 1 (how many half lifes until we're down to 1 atom?)
divide by 6.023 * 10^23,
ln both sides,
n ln (1/2) = ln (1/(6.023*10^23))
n = 79.

So, after 79 half lifes, you'll be down to 1 atom, more or less... let's see, is that months? years? decades???
Hmmmm... 8 seconds, roughly.

So, the earth, which has been around for billions of years (unless you're a creationist, in which case it's been around for a few thousand years) still has this stuff such that half a pound is gone in 8 seconds?
Note: every time you double the mass of what you start with, you only add on .102 seconds...

 

[MobiusPizza]

The heavy elements are not discovered in nature, but are made either accidentally or deliberately in nuclear reactors, particle accelerators.
So they are "man-made"