UFO sighting in Texas...

[Jer]

I just figured it's not worth it.

[Kaylia]

Good sir, this is pure bullshit.

>_> What he said is correct. Accelerating for 1 years at 10m/s² is going to get you close to 300 000 km/s (speed of light), and time at this point is almost stopped for you. It can easily be calculated with lorentz factor
http://en.wikipedia.org/wiki/Lorentz_factor

http://upload.wikimedia.org/math/9/c...4625f82617.png
http://upload.wikimedia.org/math/4/b...44a1492e25.png
v= your velocity
c= speed of light (300 000 km/s)

What he didnt mention however is that energy required to accelerate a mass around those level also increase by the same factor. If time dilation tend toward 0, it would require you an infinity of energy to accelerate it more. In other world, keeping a constant 10m/s acceleration is impossible

[GraveRobberX]

Time to throw a Wrench into this magic talk they call Science

God, Jesus, Moses, Abraham have a faster speed than this so called Light Speed, its so fast that it goes plaid, Ludicrious Speed (1500 Brownie Points to anyone who can guess where that speed is from), would have included Mohammed, but that Mofo has been a douche since all his virgins arent virgins anymore, + still dont know why he's still stuck in that Anarchist/Explosive stage

OK I've done my job

/rerail

Warp Speed possible in our lifetime?

Get me Picard................Engage!

[archibaldcrane]

Earthbound?

edit: wait no spaceballs. Fuck.

[Mizango]

Dark Helmet all the way.

[Blarg]

There was just a vid of the 'ufo' on tv from a camera phone and all it was was a light in the sky small and fairly far away, if there isn't a closer picture then this is really stupid.

[GraveRobberX]

Earthbound?

edit: wait no spaceballs. Fuck.

:rocl:

You get only 1000 Brownie Points

Mizango gets the rest

Whoever Snuggle-Wuggles with me gets the extra 501 Brownie Points

[Kaylia]

Again, does not compute, a light year is: 9,460,730,472,580.8 km (specifically the distance that light travels in a vacuum in one year) give or take since space is not completely vacuum.

Proxima Centauri is 4.2 lightyears away, so again, how can you make those 4.2 x 9~zeroes kms. any less?

A photon will get anywhere instantly, there is no time in its frame of reference. From our perspective, photons moves at 300 000 km/s and they take a set time to get there.

A good example of relativity effect is particles decay in particles accelerator. Their lifetime will be prolongated by lorentz factor when we accelerate them to a speed close from the speed of light.

For myself, something that could be argued decently as "counting" as an organism is life. Animo acids alone don't cut it for me.

I believe that abiogenesis is possible - probable even, but the only actual evidence of it is that life exists - it hasn't been reproduced as of yet. I hope it will be in my lifetime.

Most recent theories on evolution believe that life started in many different places on Earth at the same time. Basically, organized form of matter should appears if the condition allow it. Considering matters kept getting more and more organized, I dont think seeing proteins get mixed together is so surprising.

Statistically speaking, it's unlikely we are the only place were life evolved.

[Andarvi]

Could all of you with knowledge on this stuff explain this to me then?

[Tajin]

Again, does not compute, a light year is: 9,460,730,472,580.8 km (specifically the distance that light travels in a vacuum in one year) give or take since space is not completely vacuum.
Proxima Centauri is 4.2 lightyears away, so again, how can you make those 4.2 x 9~zeroes kms. any less?

A photon will get anywhere instantly, there is no time in its frame of reference. From our perspective, photons moves at 300 000 km/s and they take a set time to get there.

I get it, yet I don't.

[Tajin]

But to someone moving at the speed of light time doesn't pass at all.

But the ship is the one moving, not the passengers, the same applies?


I feel so dumb , back to school time maybe :/

[GraveRobberX]

Again, does not compute, a light year is: 9,460,730,472,580.8 km (specifically the distance that light travels in a vacuum in one year) give or take since space is not completely vacuum.
Proxima Centauri is 4.2 lightyears away, so again, how can you make those 4.2 x 9~zeroes kms. any less?

A photon will get anywhere instantly, there is no time in its frame of reference. From our perspective, photons moves at 300 000 km/s and they take a set time to get there.

I get it, yet I don't.

Go eat some PUSSY!

Very Nutritious, less calories then a Cina-Bun

Will clear up your mind very quickly, the PUSSY juices have a profound ingredient, GO! GO!

[Tajin]

Go eat some PUSSY!

Very Nutritious, less calories then a Cina-Bun

Will clear up your mind very quickly, the PUSSY juices have a profound ingredient, GO! GO!

Best advice ever.

[Woozie]

Again, does not compute, a light year is: 9,460,730,472,580.8 km (specifically the distance that light travels in a vacuum in one year) give or take since space is not completely vacuum.
Proxima Centauri is 4.2 lightyears away, so again, how can you make those 4.2 x 9~zeroes kms. any less?

A photon will get anywhere instantly, there is no time in its frame of reference. From our perspective, photons moves at 300 000 km/s and they take a set time to get there.

I get it, yet I don't.

It's just an example of the discrepancy between observers moving at different velocities. If you were to move at the speed of light, you would see yourself instantly get from one destination to another. Your watch wouldn't move at all. Due to length dilation, the distance between all points in the universe would be zero at that speed, hence why it wouldn't take you any time to get from one point to another.

Of course, it would require an infinite amount of energy to get you to that speed due to momentum dilation.

Just remember, all distances and times depend on your velocity. The limit is light speed; it's the velocity that gives zero time and length, and infinite momentum.

A faster moving observer looking at a meter stick would see it as being shorter than a meter. So it takes him less time to travel a meter. The same thing applies with interstellar travel. 4.2 light years as measured from us on Earth isn't 4.2 light years for someone traveling extremely fast. It's less. If a person on Earth ages a certain amount of years, a person traveling close to light speed ages less.

[Woozie]

But to someone moving at the speed of light time doesn't pass at all.

But the ship is the one moving, not the passengers, the same applies?


I feel so dumb , back to school time maybe :/

If a person is in a ship, then he's moving at the same speed as the ship (if he walks back and fourth inside the ship, his speed will be slight different than the speed of the ship, but the difference is negligible).

[Tajin]

I see, clear as water now. Thanks a lot

[Mizango]

But to someone moving at the speed of light time doesn't pass at all.

But the ship is the one moving, not the passengers, the same applies?


I feel so dumb , back to school time maybe :/

If a person is in a ship, then he's moving at the same speed as the ship (if he walks back and fourth inside the ship, his speed will be slight different than the speed of the ship, but the difference is negligible).

This is correct.

Damn I came to the party late. This thread is going in the EXACT direction that I was hoping.

[Jotaru]

I get it, yet I don't.

You're right.. with conventional physics. This is why relativity was brought into play, its kinda counter-intuitive until you learn how it works.

In relativity, its all frame of reference. At 'normal' speeds, time passes the same for everyone, whether you're standing still, on a bus, airplane, car, etc... cuz the speeds aren't even close to being near the speed of light (obviously).

As the speed increases towards the speed of light, time passes slower, so to speak... Its hard to explain if you don't fully understand relativity.. um.. If we measure a beam of light go a light year, it would take a year... but if you were riding that beam of light, it would take absolutely no time at all (literally) because time passes at a different rate as your speed reaches light speed. If you were going juuuust under the speed of light, it would still take a year for you to get there in the frame of reference of an observer, but to you, it'd seem like you got there almost instantly, because time passes at a slower rate to anyone going near-light-speeds.

And by slower in all of the above comments, I believe I mean faster. A year to an observer is almost no time at all to you. Blah.

[Kaylia]

I get it, yet I don't.

You're not the only one. It's not easy to understand, and very hard to visualize. Especially if you use intuition to understand those problems (our intuition is based on newton's physics since it's the only one we can orbserve in our daily life).

To understand relativity, you need to understand the implication of Einstein's 2nd postulate. The postulate say that if you measure the speed of light, result will always be the same no matter what your velocity is. If you go at 299 999km/s and measure light speed, it will give you the same result that if you measured it on Earth, or at 150 000km/s. Why? Because it works that way, there is no answer really.

With Newton's physics, if someone drives a car at 299 999 emits a light in front of him, the light should go at 599 999km/s. If it was behind, it would be 1km/s. However, that's not what we observe. The light will go at 300 000km/s behind and in front.

Now, how is it possible for 2 persons (1 inside, 1 outside the car) to see light move at the same speed? For the person inside the car, the light traveled 599 999km in one sec (the light is 300 000kmin front of him, and he traveled 299 999km), but for the person outside, the light only traveled 300 000km in 1 sec.

Without going throught mathematical demonstration, the only explanation we can give to this is that time scaled differently for both person. In the end, the person inside the car traveled only for a fraction of 1 second, while the person outside the car observed the scene for 1 seconds exactly. 0.x seconds inside the car = 1.0 sec outside the car if you want distance to match. If you do the mathematics demonstration, you would end up with a ratio equal to lorentz factor between both time scale. If you leave thing like this with Newton physics, the light would be in 2 place at the same time (599 999 for one person, 300 000 for the other)


[edit] wow...I write slow, and my explanation isnt even that good lol. Anyway, just need to remember that light is always the same, no matter what speed you're. It's easy to see why you need to explain relativity if you dont want to create paradox.

[guartz]

I actually have a friend who's parents live in Stepheville, they called him and told him about the incident and swear up and down they saw it. My friend thinks that something is wrong with their water, lol.

They also say that they saw jets trying to go after it.

Shit like this happens all the time, I think the most reason was at a chicago airport with a lot of witnesses. Of course, nothing ever comes of it... people sorta forget after awhile.

The biggest conspiracy, is that there is a secret government branch that handles this matter. Also if you're interested, I have a shit load of declassified military communications regarding UFO's, but they are all from 1960s-70s.

http://www.archives.gov/foia/ufos.html