Who Believes in aliens??

[Vigilante]

What is the fastest speed known to man? Is it the speed of light?

So let's say somehow we built a ship that travelled at the speed of light, it would still take 4 years to reach our nearest star. Hardly adequate for deep space travelling. Which is what makes space movies lame, because they always travel light speed. And that would get them nowhere, fast.

But I also wonder, because of the lack of friction in space, as long as there is a "push" of sorts; theoretically any object could gain momentum infinitely, because nothing is stopping it. And thus not have a speed limit. Except if it reaches a magnetic field or any such force that can slow it down, a gravitational pull, black hole, whatever.

It's fun thinking about it. I don't think any matter could travel that fast, in space or elsewhere. I would think it would shread to tiny pieces and float away. So then, what is light made of? Whatever light is made of, that would have to be the shell of any object meant to move that fast.

But anyhoo, enough scifi for me. Beem me up Scotti

 

[zephead]

light rays are composed of photons, a subatomic particle that is affected by gravity. light rays will bend when they pass close enough to a gravitational center. that's pretty much all i know on the subject of light.

 

[Mictlantecuhtli]

What is the fastest speed known to man? Is it the speed of light?

It depends...

 

[pkroks]

it depends on what?

edit: i see the link now duh...... :grinthumb

 

[-Tom-]

Hey what about black holes? Perhaps its possabile to travel through them, without the need for faster than light travel. I was watching something about Steven Hawkings the other day and he thought the Univerise was full of them.

 

[zephead]

black hole exploration? i think we'll let the up-and-coming chinese space program handle that...

 

[Spike]

If you entered a black hole, you'd be torn to spaghetti before you even reached the event horizon.

Apart from that, Black Holes are the the most efficeient and intense matter to energy converters we know of. You'd get fried!

note: what would acctually happen is that if the black hole was active, you'd get killed by the gamma radiation, then you'd get fried, then you'd get torn into spaghetti-like strands, then vapourised to gaseous form, followed by burning. As you entered the black hole, you'd be compressed to an infinitely small point (singularity) before being expelled back into the universe as nothing more than gamma radiation.

Doesn't sound all that fun to me.

 

[Vigilante]

Well it would be fun up until you "get killed by the gamma radiation".

Isn't a black hole a gravitational collapse? Won't a black hole chew itself up and dissapear after time?

I thought it was not black holes, but worm holes, that could be used for travel. In wild theory of course.

 

[Spike]

They are gravitational colloapse yes. As for chewing themselves up in time, maybe over millions of years, but I don't think so. What they do do is reach a point where they have expended all matter around them and so become inactive, untill something falls into them. This can be seen in the form of the Super Massive Black Holes known to exist at the exact center of galaxies (including our own milky way). They don't often do much, and are only noticeable when something strays too close and they "activate"

The problem with wormholes is that they are basically two black holes connected at the singularity. You have that same spaghetti problem

 

[meNOname]

i was once abducted by aliens...
and they took me to the big flying circle thingy in the sky....
and showed me this really odd thingy

then they cooked me a really good dinner :chef: :slurp:


then they hit me on the head and i woke u outside my house....
went back inside and got sick puke:

WHOA!....it was crazy i tell ya

 

[roflmfaoatu]

i belieeeeeeeeeeeeeeeeeeeve

i do believe in aliens, and as i read in the earlier post, im sure that there is bacteria out there that qualifies as aliens, hell mexicans to america are aliens. lol, but on a serious note, if there were aliens out there and they are only in our "galatic backyard" and sent us a message via radio or an ultaviolet light 20x brighter than our own sun, we wouldnt be recieving any of it for millions of years, and if we have recently recieved anything it would have been from our dinosaur age. at the speed of light, light can only go so fast, the message would take forever millions of light years and thats just to say that they were in our backyard, not to mention down the street and across the block over in suzie aliens galaxie. it would take aliens forever to get to our planet, again unless they were in our backyard all along. whos to say that they live longer or shorter life spans then humans tho, they could have been on their way forever ago and just dont die, lol. this topic can be argued for ages... for the serious alien ponder'er i suggest reading 'the lacerta file' and ponder the bible. also seti satelights are looking and for the last 20 years havnt found ne thing, but like i said earlier, u have to be looking at the right times i suppose. p.s. another good file to research that was our own u.s.a. governet top secret file would be the "philidelphia experiment" which involved wrapping the hull and another part of the ship with large ammounts of copper... and what they were trying to achieve was for our naval ships to appear invisible from radar. i'll let the serious alien fans check that one out on their own.

 

[balzi]

and if it takes their message millions of years to get here then the chances are that they haven't seen us yet.. cause it would take millions of years for them to get any visible indication that Earth had someone worth talking too.

for the discussion - I don't happen to think that there's extra-planetary alien life.. but if there is, I don't really mind.. we've got enough problems of our own.. unless we could find some smart AND nice aliens, that could help us out.

Balzi

 

[hewybo]

must be

Recent research into red dwarf stars suggests that life could exist on planets orbiting them. In the Milky Way (our neighborhood, if you will) alone, there are over 300 billion of these "red dwarfs," outnumbering G type stars (Sol) by 10 to 1. That is only the Milky Way's number. Multiply that by billions more galaxies, then by countless trillions of stars. Life elsewhere? It seems an absolute certainty. Intelligent life? Witnessing the behavior of this planet's population, I think we may not be qualified to determine what "intelligence" is. If we, the human race, are an example of intelligence, perhaps there is also no question that there is "intelligent" life elsewhere.

I believe in God-- and I know without doubt that He can do, and probably has done, better work. To believe that we are the top of any intelligence ladder, and that this planet alone could sustain such evolved animation is, to me, the very height of arrogance.

Not only that, there are at least three aliens living right here inside my head............. so there!!

 

[MonkeyMan]

Well, there have been some very interesting videos pertaining to aliens, but I think that most of them are fairly authentic. I mean, how do you describe the bizarre videos that have been recorded? quite interesting indeed, but one only needs to think about the vastness of the universe, and you can unmistakably come to a decisive conclusion. Who Knows, maybe they will visit us someday in the near future.

 

[lithiumdeuterid]

the universe is infinite

.

No. The universe is not infinite. The universe has a finite amount of mass in it, roughly 10^80 atoms, and therefore a finite number of worlds.

However, the universe is really, really, really big, so this does not preclude the existence of life (even intelligent life) on other planets. As for whether or not any of that life has visited earth, I would say definitely not. Sleep paralysis, hoaxes, and general human stupidity account for any supposed alien abductions.

 

[SNGX1275]

.

No. The universe is not infinite. The universe has a finite amount of mass in it, roughly 10^80 atoms, and therefore a finite number of worlds.

However, the universe is really, really, really big, so this does not preclude the existence of life (even intelligent life) on other planets. As for whether or not any of that life has visited earth, I would say definitely not. Sleep paralysis, hoaxes, and general human stupidity account for any supposed alien abductions.

Just for arguments sake... How do you know its finite? its expanding into SOMETHING, who is to say that perhaps somewhere past where its expanding into, there is another 'universe' expanding towards ours...

 

[zephead]

i think it's safe to say that scientists are currently unable to provide more than speculation on the subject. and educated guess is still a guess. interting discussion though.

 

[xearon]

I believe

I believe in aliens, the are taking over our company's desktop support department.

 

[lithiumdeuterid]

SNGX1275: The universe is finite in size. The boundary is determined by the parts of the universe that moving away from us at the speed of light. Everything further away than that is moving away from us faster than the speed of light, and is therefore invisible and unreachable, and can never possibly affect us in any way. Therefore, this region is not part of the universe.

 

[DonNagual]

I never believed in aliens until after reading some of the posts in this thread.

Now I am not only convinced of the existence of aliens, I think I also know where to find them. Right here in the Techspot Forums! lol.

 

[hewybo]

Huh?

SNGX1275: The universe is finite in size. The boundary is determined by the parts of the universe that moving away from us at the speed of light. Everything further away than that is moving away from us faster than the speed of light, and is therefore invisible and unreachable, and can never possibly affect us in any way. Therefore, this region is not part of the universe.

If it can be called a "region," then it exists, que no? If you know about it, it MUST exist. A butterfly pooping in the rainforest will never affect you, either. It would be disappointed to learn it doesn't exist.

DonNagual............Speak for yourself! (or perhaps you just did?) :angel:

 

[lithiumdeuterid]

hewybo:

A butterfly pooping in the rainforest does affect me. It involves a tiny amount of mass shifting around, which affects the gravitational field at my location by the tinest amount. Gravity effects, however, travel at lightspeed. If the butterfly were in the region that is traveling away from me at faster than lightspeed, nothing it does could ever affect me in any way at all. Ever.

 

[hewybo]

calculations

hewybo:

A butterfly pooping in the rainforest does affect me. It involves a tiny amount of mass shifting around, which affects the gravitational field at my location by the tinest amount. Gravity effects, however, travel at lightspeed. If the butterfly were in the region that is traveling away from me at faster than lightspeed, nothing it does could ever affect me in any way at all. Ever.

This discussion has caused me to perform many calculations (I had to lube my slide-rule twice), and these are my conclusions:
If that area you describe that could have no effect whatever were not there for the universe to expand into, the resulting contraction of that portion of the universe would be likely to cause your left leg to begin to withdraw back into itself. As a result, sometime around 60-75,000 years from now, you would look down to discover that not only do you not have a left leg (have you checked your shoe size lately?), it will have been replaced by...........a speck of butterfly poop! Thus proving BOTH of our theories. Voila!! :angel:

 

[howard_hopkinso]

The original question of "do you believe in aliens?" Stirs up images of little green men etc.

Maybe it would`ve been better to ask "is there life beyond the earth?"

Of course, the answer to either question is no one knows for sure.

One must then ask. Does it seem reasonable for the earth to be the only planet in the known universe where life exists?

If you subscribe to the view, that life evolved here on earth due to the conditions for life being supported, as we know they are. That is to say, life will evolve naturally when the conditions are right. Then it would be reasonable to expect a planet of another star, with a similar size, atmosphere, and temperature system, to have it`s own life forms as well.

Given the vast number of stars in our galaxy, and the vast number of galaxies in the known universe. It would seem very reasonable, that the conditions for life will exist in great quantities throughout the known universe, and therefore life beyond the earth is very likely to exist.

If on the other hand. You subscribe to the view, that life was deliberately created. Then it is entirely possible, for the earth to be the only planet that has life upon it.

I personally take the view, that life does occur naturally. Therefore, I find it quite likely that life does indeed exist elsewhere.

Regards Howard

 

[SNGX1275]

SNGX1275: The universe is finite in size. The boundary is determined by the parts of the universe that moving away from us at the speed of light. Everything further away than that is moving away from us faster than the speed of light, and is therefore invisible and unreachable, and can never possibly affect us in any way. Therefore, this region is not part of the universe.

I'll concede your not infinite argument based on your statement, but you missed another part of what I said.

My point was if outside of our expanding universe, past its boundary some distance, there may be another universe expanding. With both edges approaching each other at some initial point, and then overlapping each other.

I don't think you can say just because its not encompassed inside our expanding sphere (assuming its expanding in a spheical shape) that it doesn't exist.