Speed of Light

Posted: Sun Jul 29, 2007 7:57 pm Post subject: Speed of Light

The speed of light may not be a constant. It does vary in different media (hence the rainbow effect of light going through a prism) and may also vary in different places in space. The entire idea behind the black hole theory is that light can be attracted by gravity and be unable to escape the great pull of these imaginary black holes. I say imaginary because basically we have never seen one and technically can't really see one. No one knows what light is let alone that it's velocity has been the standard of time, if the speed of light is decaying, the clock would be changing at the same rate and therefore not be noticed. Light has properties that come across as matter and as an energy. It has the properties of both particles and waves. Considering all the odd characteristics of light, answer the following question. I don't know the real answer, just a question I came up with but don't know the answer. I thought it was interesting.

The Speed of Light in a vacuum is believed to be a Physical Constant with a velocity of 186,282.397 miles per second.

If I was cruising through space in a vehicle at 187,000 miles per second and turned on the head lights what would happen?

Would the headlights slow me down?

Would the light from my headlights now be at 373,282.397 miles per second? That is 187,000 + 186,282.397. As far as this goes, if I was driving 55 mph on the highway, would my headlights light be 55 mph quicker? Would I need to add another 67,000 mph due to speed earth is moving through space? Would the speed of the earths rotation make a change too? Confused

Would I be able to look out the back window and see myself? Shocked

What would my tail lights look like?

Would I travel through time?

Wow, this is wierd to think about. I guess I'm no Newton or Einstein. Laughing

_________________

Posted: Sun Jul 29, 2007 8:20 pm Post subject:

I'm guessing that the wife and kids are gone for the weekend, because you obviously have WAY too much time on your hands...
_________________
Kill 'em all and let God sort 'em out!

Posted: Sun Jul 29, 2007 9:10 pm Post subject:

Posted: Sun Jul 29, 2007 11:44 pm Post subject: Re: Speed of Light

Posted: Mon Jul 30, 2007 1:07 am Post subject:

Dang 10K, you took all the fun out of my day dreaming! Laughing

Light is beyond my understanding. Scientists have claimed to have broken the ultimate speed barrier: the speed of light. Particle physcists in the USA have shown that light pulses can be accelarated to up to 300 times it's normal velocity of 186,000 miles per second. Light has also been brought to a complete stop. I don't even want to try and understand any of that or how the equipement was designed. I just want my internet to be faster! Laughing

As far as the black hole, I wasn't saying they don't exist. You missed the fun of my statement. If it is sucking in light, it can't be seen, so we imagine that they exist. That is, of course, assuming that light can be effected by gravity. That was suppose to be funny. I'm not suggesting they really are just imaginary only. Black holes are a theory and may or may not exist. I don't know either way, of course no one really does. I understand that unseen things can be real such as air, I happen to believe in many unseen things: God (as we have discussed before), air, gravity, colors that I can't see, time, space, Hillary Clintons Brain.... well you get the point. Laughing

I do understand the basics of the arguments for and against black holes, I don't have an opinion either way.

The hole idea with this post was meant to be tongue in cheek. Just throwing out an odd perspective that was meant to bring out a chuckle.

I agree with the time travel in movies, but it does make an interesting plot sometimes. Time travel is very confusing to think about, that is if we could do it. How about this one: Once upon a time there was a time when there was no time. Shocked

Time, Space, and Matter must happen at the same time and coexist. You can't have one without the others. Shocked

This is explained by two beliefs; Atheists now believe that nothing exploded and created everything. I say "now" because when I was in school it was taught that everything was in a spot the size of a period on this sentence. Now its stated "Nothing exploded and nothing really means nothing"-quoted from a local high school book. The scary thing about that idea is that my wallet almost always has nothing in it. I hope it never explodes. My wallet has the potential to be a weapon of mass destruction. Laughing

The Bible also states that there was nothing and that time space and matter were all created at the same moment according to the first verse of the bible. Either way: Once upon a time, there was a time, when there was no time. Laughing

All three were either created by God or the universe of itself. Both ways are very amazing and hard to imagine.

I'm not sure, you might know this one; Did Albert Einstein prove by math that time travel is possible, but we don't have the ability to prove or disprove his idea? I thought I have heard that at one time or another back in the school days.

Posted: Mon Jul 30, 2007 1:32 am Post subject:

i'm not trying to be a party pooper, you asked some specific questions, and I tried to give as specific an answer as i could.

Einstein's theory "Special Theory of Relativity" on time travel is that as you approach the speed of light, time slows for you. if you left the Earth and hit near to the S.O.L., time from your perspective would be normal, but from an Earthly observer you would wink out of sight. the longer you traveled at near light speed, the more time would pass on Earth as compared to you.

So, you leave Earth and travel at 95% or so of the the Constant, and travel wherever for a year, turn around, come back, at stop at your origin point, and you would see an Earth that had advanced several to dozens of years beyond when you had left it.

for a "travel back in time" theoretical machine, watch this http://thatvideosite.com/video/4422
_________________

Humanism- Less Filling, Tastes Great.

Posted: Mon Jul 30, 2007 1:47 am Post subject:

New research has found that each yes EACH and every solar system has a super masive black hole at the center of it. This super masive black hole are million possibly billions of times heavier than our sun. Because of this research it changes the "theories" of how solar systems became solar systems and now new "theories" of how stars can become stars.

http://heasarc.gsfc.nasa.gov/docs/blackhole.html

Posted: Mon Jul 30, 2007 8:23 am Post subject:

TenK said pooper Laughing

I was just bored this weekend, family was gone (HiTech knew this since we work together). You didn't really rain on my party. I did find your post to be interesting, even though I was not really looking for answers.

That's the theory I was looking for. I was thinking of it because of some of the ideas that NASA is dreaming about. NASA is dreaming of ways to make space travel quicker. One of the ideas has something to do with magnetism and is suppose to reach near speeds of light. I was thinking that would cause time travel per Einstein's theory. It will be cool if we are ever able to do it. I've always thought; wouldn't it be cool if we could travel at speeds beyond speed of light. Pick a direction and go straight and eventually come back to the other side of earth. Shocked

That would mess with our minds. Laughing

Thanks for the video and post TenK, that was cool. I have two observations; If he turns it on and nothing appears from the future the first day, couldn't we assume that it will never work? Do you think the first thing to come through will be the lotto numbers for sometime in distant future? He wouldn't want to win too soon, that would make it too obvious. Then he'll break the machine, say it was never going to work, and retire. Laughing

I also checked out the link on the black holes. New research has not found that every solar system has one. The new research has led to the belief that this may be possible. Read the first sentence again on the link. Black holes are a theory and may not even be what we think they are, or even exist. Not that I'm saying they are not real, but we have a very long ways to go to understanding the design of the universe. We may be changing theories for a long time to come, due to new technology and new data as time goes by. You might not have meant to have been so dogmatic, but I was hoping to use that word sometime today. Shocked

Thanks for the link Mayo, it was cool to check out.

Posted: Mon Jul 30, 2007 11:19 am Post subject:

In no way did I mean to be dogmatic I myself cannot explain "how" there are black holes in every galaxy it was just recently discoverd so most the data on black holes are not up to date. http://select.nytimes.com/gst/abstract.html?res=F1061FFE3C5B0C758CDDAF0894D8404482&n=Top%2fNews%2fScience%2fTopics%2fHubble%20Space%20Telescope

I just was trying to pass along some info without adding the word "creation" in what I wrote didn't want to upset anyone.

I love thinking about this kind of stuff

Posted: Mon Jul 30, 2007 11:31 am Post subject:

ok that made my headache and i do not want to read it all again. But I thought light was radio waves that we can see or did someone already say that.
_________________

http://tinyurl.com/yobjfs

Posted: Mon Jul 30, 2007 1:08 pm Post subject:

light behaves as both a particle and a wave. it is electromagnetic radiation (wave) and made up of photons (particle).

i did see where supermassive black holes are believed to be at the center of every galaxy, but the cool part (to me) was that not all the singularities were "feeding"... in other words, they provided the gravity needed to contain the galactic integrity, but that it was not actively devouring stars and planets. there was the ominous implication that it could switch on at any moment though... as if we didn't have enough problems.

Here's a little more mind bender stuff. The Milky Way and Andromeda Galaxies are destined to collide in about 3 billion years. Assuming we survive that long as a species, it could mean the absolute destruction of both galaxies by the physical collision (setting off hundreds of billions of super nova), or the super-massive black holes could join and begin to feed (sucking in everything from both galaxies), or the Andromeda Galaxy could "capture" the Milky Way and create a "Super Galaxy", OR.... the two galaxies could pass right through each other and observers from both galaxies would be able to clearly see each other's galaxy with the naked eye.

and if you REALLY want a headache, look up "Multiverse"... the idea (of which there is actually some empirical data) that there may be several entire other Universes co-existing within or around our own.... which may also be part of yet another body.
_________________

Humanism- Less Filling, Tastes Great.

Posted: Mon Jul 30, 2007 2:03 pm Post subject:

hey very interesting topic

i don't know the truth about black holes either but i've always learned that planets and stars deform(if thats the correct word) space time
black holes do not attract photons but deform space time so much that light never comes out
a black hole itself is not that hard to imagine, it's only an object that has become smaller than it's swarzschildradius and it's also know how they are born

Schwarzschild radius
From Wikipedia, the free encyclopedia
Jump to: navigation, search
The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is a characteristic radius associated with every mass. It is the radius for a given mass where, if that mass could be compressed to fit within that radius, no known force or degeneracy pressure could stop it from continuing to collapse into a gravitational singularity. The term is used in physics and astronomy, especially in the theory of gravitation, general relativity.

In 1916, Karl Schwarzschild obtained an exact solution[1][2] to Einstein's field equations for the gravitational field outside a non-rotating, spherically symmetric body (see Schwarzschild metric). The solution contained a term of the form 1 / (2M − r); the value of r making this term singular has come to be known as the Schwarzschild radius. The physical significance of this singularity, and whether this singularity could ever occur in nature, was debated for many decades, and a general acceptance of the possibility of a black hole did not occur until after World War II.

The Schwarzschild radius of an object is proportional to the mass. Accordingly, the Sun has a Schwarzschild radius of approximately 3 km, while the Earth's is only about 9 mm.

An object smaller than its Schwarzschild radius is called a black hole. The surface at the Schwarzschild radius acts as an event horizon in a non-rotating body. (A rotating black hole operates slightly differently.) Neither light nor particles can escape through this surface from the region inside, hence the name "black hole". The Schwarzschild radius of the Supermassive black hole at our Galactic Center is approximately 7.8 million km. The Schwarzschild radius of a sphere with a uniform density equal to the critical density is equal to the radius of the visible universe[3].
_________________

{uZa}Studdog +SC+ · Posted: Mon Jul 30, 2007 3:53 pm Post subject:

Posted: Mon Jul 30, 2007 5:56 pm Post subject:

I THINK ALL U GUYS R NERDS!

BUT...

WHAT IF THERE IS A TINY UNIVERSE UNDER MY FINGERNAIL...

HMMMMMM.....

I NEED A BEER...

Posted: Mon Jul 30, 2007 9:44 pm Post subject:

I need excedrin Shocked

_________________

~~Be happy this moment, for this moment is your life~~