How Far Does Light Go? Argument for €ENTER-YOUR-NAMES-HERE€

THEORY 1: Light Goes Forever Until Absorbed (LGF)

Theory Summary

RATING: Medium

NOTE: This theory says that the "LGF" means Light Goes on Forever until it is absorbed by an object.

Light reflects off light clothes

Bicyclists at Night

Evidence Note

RATING: Sort of High

NOTE: What we want to remember about this evidence is that the person who is wearing the white can be seen easier because our eyes can see the light that is being reflectes off the white clothes. The black outfit is absorbing the light and the white is reflecting it. Our eyes see the light that is reflected by the objects and if the object is absorbing the light we would not be able to see it. The methods for this evidence is very high because it is laid out very nicely. It gives us proof of what was happening at the time. The credibilty was also very high because they had a movie to show us and it showed the people riding and what they looked like while they were riding. This evidence comes from a reliable source and we believe that this evidence goes under the theory light goes on forever until it is absorbed because the white sweat-shirt we could see because the light reflected off it and the black asborbed the light and that is the reason we could not see it.

Bikers wearing white-LGF

The Soccer Field-copy

Evidence Note

RATING: High

NOTE: What we want to remember about this evidence is that light may not go on forever because withthsi evidence it shows a man, Phill, walking on a soccer field and as he drifts off into the field farther away the light dies out. And you can see the car lights as the camera moves closer. We think that this method is great because it shows a real movie and it gives great evidence. It also has great proof of what went on. The credibility is very high because they had a tape and a movie to proove what they did. Jen and I think the light died out because if the light was going to be absorbed it would of been absorbed closer or sooner.

As light gets farther away the light intensity decreases

Light Intensity Over Distance

Evidence Note

RATING: High

NOTE: What we want to remember about this evidence is that when the light source gets farther away from the probe the light intenity seems to die out. It never completely dies out it just gets a lower light intensity. The intensity will decrease as it goes, even if it goes on forever. We think the methods are pretty clear on how they did the expeirimaent because they had a whole movie on how they did it, so it's pretty clear. We believe that his thery is very credible because we got to expieriment with the movie and see if they were telling the truth. We also got to do an expieriment just like this one in our own hometown classrooms!! :)

How long the light lasts depends on how bright the light

Robert in the Car

Evidence Note

RATING: Medium

NOTE: What we want to remember about this evidence is that when we are driving at night we can see the incoming cars from a far distance to prevent accidents. This piece of evidence we think goes under "LGF" We don't think that it is very credible becuase it is only text. We do think it is credible though do to the fact that both of us have been driving on the freeway at night and you can see cars from a far distance away. I, as Jen, don't think that it goes under LGF because I have noticed that if it is really, really far away you can't see the lights. ANd I have also noticed that the back lights aren't as bright And that kind of proves that light doesn't go on forever. As for me, Paige I believe that the lights coming from the cars go until it is absorbed by another object and that is the reason the lights fades away.

THEORY 2: Light Dies Out (LDO)

Theory Summary

RATING: (unrated)

NOTE: This theory says "LDO" means Light Dies Out and that it does last forever. It says that Light travels for a little ways and it doesn't keep going until it is absorbed like "LGF".

As light gets farther away, it dies out

Searchlight Photo

Evidence Note

RATING: High

NOTE: What we want to remember about this evidence is that the light starts out really bright when it is close to the light source but as it gets farther away, the light doesn't seem to be as bright. For the method we think it's pretty obvious, I mean we saw a picture. And that is major proof. For credibility we think it is high as we saw the picture and we read the evidence. Also we see how when they put out blockbuster lights, like when there's a special or something, you can see how they start out bright and are kind of faded in the sky.

Brian Star-gazes

Evidence Note

RATING: Sort of Low

NOTE: What we want to remember about this evidence is that when it is a clear night and there are no stars out when you look through a telescope you can see the stars. For the methods in this experiment we think that there is no proof to support what Brian is saying. He told us what happened, but he did not tell us if it works every night or only sometimes and he didn't give any hard evidence. For the credibility we believe that it is not credible, well not really. That was just one night out of the whole year. We think it is somewhat credible because if you look up at the sky on a clear night you're bound to be some stars but some times you may think that it is a clear night but maybe there is fog in the way that you can't see. But it could also be that the stars are really dim and hard to see from such a distance. This is a really debatlible piece of evidence. We wouldn't really consider it evidence though, because there was no real proof!

Why stars die out-LDO-copy

The Soccer Field

Evidence Note

RATING: High

NOTE: What we want to remember about this evidence is that light may not go on forever because withthsi evidence it shows a man, Phill, walking on a soccer field and as he drifts off into the field farther away the light dies out. And you can see the car lights as the camera moves closer. We think that this method is great because it shows a real movie and it gives great evidence. It also has great proof of what went on. The credibility is very high because they had a tape and a movie to proove what they did. Jen and I think the light died out because if the light was going to be absorbed it would of been absorbed closer or sooner.

The light you can't c may have already been absorbed

Galaxies in the Young Universe

Evidence Note

RATING: High

NOTE: What we want to remember about this evidence is that stars look differently through different eyes. Which means that if you look through a telescope you can see the distant and less bright stars than if you were to look at them with your eyes. We think that as we are on the planet Earth and the stars are so far away some of the star's light does not travel as far as others. We think that the methods is very obvious as in this expiriment they give us pictures and examples to think upon. We think that this evidence is very credible because of all the hard evidence they have given us. It also could be that the light from the certains stars has already been absorbed by something, so we are not saying that the theory light dies out is definate. But because of this evidence we think that light does die out after a while.

Why stars die out-LDO

Robert in the Car2

Irrelevant

Flashlight Data

Evidence Note

RATING: Low

NOTE: What we want to remember about this evidence is that when light is in a flash light, with something around it to cause it from not scattering everywhere, the light intensity is greater. The reason why it is greater is because it is not scattering everywhere and is only focusing on one main point.

Light Detector Evidence

The Human Eye and Glasses

How Night-Vision Goggles Work

Telescope Evidence

The History of the Telescope

How a Telescope Works

The Hubble Space Telescope