Picture
Look at the image above.  One half of the image shows how light transmits through a flat piece of glass, while the other shows how light transmits through a frosted or rough surface.  Based on your observation of the image, please explain why you believe the image from the frosted side is blurry.
 


Comments

Scooby-Doo25
09/20/2010 8:43am

The frosted peice of glass is translucent so only some of the light can get through. On the other hand, all of the light gets through on the other side because it is transparent.

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DgenerationX
09/20/2010 8:45am

We think the frosted half of the image is blurry becuase once light hits the glass,it goes off in many different directions and finally making its way through the rough glass. Once reflecting off the object the light has to travel back through the rough glass and into your eyes.

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Chargers
09/20/2010 8:45am

The reason that the smooth glass doesn't effect the way you see the image because the glass tranmitts the light energy through it. The frosted glass makes the image blurry because there isn't as much light transitted through the glass and the glass bends the light.

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Saints
09/20/2010 8:47am

If the glass is frosted it is like a moist cloud on a window. The frosted side is blurry because the frost doesn't allow light to travel through that well. When you wipe the mist or frost off it is easier to see the object. It still is hard to see, but it is better than having all of the frost on it.

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Spiderman101
09/20/2010 8:47am

I believe the image from the frosted side is blurry because frost is a form of frozen water . The frozen water coats the glass making it blurry because its cold outside the glass, and warm inside the glass.And thats why the glass is blury.

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B&B'z
09/20/2010 8:53am

The reason one side of the glass is clear and the other isn't is because, there is frost that your eyes can see through but you can't see details. The other side of the picture doesn't have frost so you can see clearly through it.

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Alanta Braves Fanz
09/20/2010 10:19am

The frosted glass is a thicker glass than the other glass that is beceause the frosted glass has more particals than the other glass so it cant get all the way through but the other one dosent have as many particals which allows light to go thruogh it more easily.

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DA Ballerz
09/20/2010 10:19am

We think the frosted side is blurry because the surface is rough so light cannot travel through it very well. aslo because there are tiny objects on the frosted glass so the light is reflect in a bunch of directions.

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TNT dynomite
09/20/2010 10:23am

I think that the image is blurry from the frosted side because the frosted side is glass and glass dose not reflect that much, so you can just bearly see the image, were a mirror has the ablity to reflect the light so you can see almost the same image as the object.

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TC&E
09/20/2010 10:25am

I think the light appears blurry on the frosted surface because the surface is rough so the image is going to appear that way. The light hits the surface and because it is rough the light appears to bend or go in different directions to make the image blurry.

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Da- divaz
09/20/2010 10:25am

We believe that when you see a smooth piece of glass you can see a lot better because it is flat. Also because on frosted glass the surface is rough and light can't travel through that as easly because there are a lot of particals.

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Positive Bloggers
09/20/2010 10:26am

We believe that half of that image of a flower looks fuzzy becuase on the smooth side the particles are not very packed together and it is clear, so you see a clearer image, while on the fuzzy side the particles are packed together more and the frost creates a film to where not enough light can travel through and reflect into your eyes as clearly as the non-frosted side.

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    Picture

    BLOG of the WEEK

    Aug 30-Sept 3
    DgenerationsX said:
    This year or even in the future, when I am down or not doing well on something, I will always think about my seventh grade class motto. It helps me stay focused and to never give up. It reminds if I strive for the best, I won't have to worry about the rest!
    Sept 6-Sept 10
    Positive Bloggers said:
    Our movie scene:
    A tornado hit a man's house, and he was thrown into a fescue field miles away.He was all alone, and scared becuase it was dark and he could not see anything.There was no moon out in the sky.He felt on the ground until he found a box of matches with 2 matches inside. He also found a lantern full of oil. 
    (note: light sources are matches and a lantern.)
    He decided to take the matches and use them to light the wick on the lantern.
    After a while, he got in a better mood and was less scared becuase he could now see around himself and a little farther away. He saw his house destroyed so he ran to the closest house that was standing, and was finally okay. 
    (note:the darkness was scaring him, then the light from the lantern gave him more hope.
    Sept 13-Sept 17
    DgenerationX said:
    Shadows provide eveidence that lines travel in a straight lines becuase,if lines did not travel in straight lines, there would be no shadows. Shadows are casted by an object blocking light from that area . If light did not travel in straight lines, the light could bend around the object and there would be no shadow. That is how shadows provide eveidence that light travels in straight lines.
    Sept 20-Sept 24
    Positive Bloggers said:
    We believe that half of that image of a flower looks fuzzy becuase on the smooth side the particles are not very packed together and it is clear, so you see a clearer image, while on the fuzzy side the particles are packed together more and the frost creates a film to where not enough light can travel through and reflect into your eyes as clearly as the non-frosted side.
    Sept 27-Oct 1
    Chargers said:
    The reason the the stick appears to be bent is that the water refracts the light therefor the stick appears to be bent. The scientific reason is that the water refracts the light.
    Oct 4-Oct 8
    Da-Divaz said:
    An object that improves the way we see light is a projector. It uses a concave lense and makes the light bend outward. It helps because when your in a movie theater instead of looking on a small screen more people can come and watch on a big screen. We think the projector is using a refrating lens.
    Oct 11-Oct 15
    Positive Bloggers said:
    Our opaque material is a School Locker. The advantages of having an opaque locker is that you can't see what is inside the locker,therefore if something valuable is inside the locker, so no one will know to steal. 

    Our transparent material is a non-digital clock.
    An advantage of having a transparent non-digital clock is that you would be able to tell which position the hands are in, so you could tell what time it is, so if you had an appointment, you wouldn't be late.

    Our tranlucent material is tracing paper.
    The reason we chose tracing paper was when you want to draw a picture, but not wanting to do a bad drawing so you find something to trace and tracing paper helps for you to see the drawing lines easier.
    Oct 25-Oct 29
    Green Hornets said:
    Our reply to the question, how did the rainbow form and why did it have so many colors, is that the rain left water particles in the air, so then the light goes through the water particles and is then reflected in all different directions, therefore creating a body of mist. A short wavelength light appears blue, violet and indigo, and a long wavelength light appears red, orange and yellow, so your eyes see the rainbow with many colors, or R.O.Y.G.B.I.V.
    Nov 1-Nov 5
    Science Smarties said:
    The reason magma comes out of the earth is because the magma circulates underground and builds pressure until it can’t take anymore pressure so it erupts to the surface that has the most magma under ground. There are many places that have magma, but does not have a lot of pressure so it does not erupt .We the Science Smarties don’t ever except that Missouri will erupt of magma because it is flat and we don’t think that there is enough pressure built up to make Missouri erupt with magma.
    Nov 15-Nov 19
    Science Smarties said:

    No, not all earthquakes are disasters.
    One way to determine if an earthquake can be a disaster is its location. The location is important because if an earthquake hits a wheat field then there would be no sign that an earthquake had hit, but if an earthquake hit a city then there would be a lot of buildings destroyed and lots of lives taken. 
    The second way we think would determine if an earthquake is a disaster is how big the scale is, from 1-10.If an earthquake is a 1 than it is very small and you probably wouldn’t feel it, but if it was a 10 then you better take cover because stuff would be coming down on top of you.
    The third and final determination is the resources that people would have after the earthquake. If they had all the resources that they need then everything would be lot easier then if you had no recourses and there is no way of getting things to you and you would be on your own with out help.
    These three opinions are what we think that determine if an earthquake is a disaster.
    Nov 29- Dec 3
    DaBoom Bloggers said:
    I think it would be harder to dig farther down from that 8 mile point because the earths crust becomes hot and thick. Pretty soon they would run into magma and burn the drill and equipment and they also wouldn't have a way out. Then the magma would fill up in the hole and burn them. They also would not be able to drill past 8 miles because they don't have a drill long enough, so they would have to get in the hole with the drill and if they hit magma they would burn just like we mentioned above.
    Dec 5-Dec 9
    Crispy Science Giants said:
    I think the effects would be different (much different) if that earthquake were to happen right now because there would be much more damage. In 1811-12 there was probably not near as much buildings or special landforms that could be destroyed, but at this moment there are many buildings, homes, stores, etc. that the earthquake could have wiped out. Also, there would be a high increase of death toll. In 1811-12 a less percentage of death was more likely because there was probably very few people living in the area of where the earthquake hit. At this time many people would have been killed because there’s a higher population.
    No, I don’t think there is a high chance of an earthquake like the one in 1811-12 to occur in my lifetime. I think this because the boot of Missouri is not right next to a fault line and fault lines increase chances of earthquakes. I also think this because this other earthquake occurred almost 200 years ago which explains that is was a very long time before my lifetime so I think another one will not occur until after my lifetime.
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    Big Macs said:
    Ok so there are 365 and 1/4 days in a year and about 29 days in each month. Ok so if you want the 1st day of every month to be a full moon you would have to make roughly 27-29 days in a month so if you times 28 by 12 you would get 336 which would mean you would need 29 more days so you could have one more month which would equal 13 months so 12 months would have 28 days and then one month (July) would have to have 29 days. But you would still have 1 /4 of the year left so every 4 years I will have 1 day added on to January. So my school year would be from August to March.
    Jan 17 - Jan 21
    Science Kids said:
    Okay, for starters, the earth is tilted at 23.5 degrees. Our nation is placed in the Northern Hemisphere, and when it is winter the Earth is tilted away from the sun, the southern hemisphere placed more in the sun rays, therefore, our nation is in the shadows, and the shadows are what make us have colder temperatures. In the summer, our planet is facing towards the sun, with the northern hemisphere placed more directly in the suns rays, and the southern hemisphere is shadowed, with our nation in the direct rays. We get the heat from the sun, in the summer, while the southern hemisphere gets the cold. That is what we believe is the cause of the weird temperature difference.
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    Chocolate Thunder said:
    The shadow stick is used for making shadows so we can figure out the angle of the sun.If we placed the shadow stick in the baseball field the shadow would change from morning to afternoon. In the morning we would have a long shadow because the sun is farther from 90 degrees in the sky. The shadow in the afternoon would be short because the sun is closer to 90 degrees in the sky. The shadow stick's shadow would be long because on the first day of winter the sun is the farthest away from 90 degrees and the farther from 90 degrees the longer the shadow would be.
    Jan 31 - Feb 4
    Awesome Peoples said:
    1. You could prove whether or not the length of a planet's year is related to its distance from the sun, because the farther the planet is from the sun, the longer the year is, but the closer the planet is to the sun the shorter the year.
    2. No, because it takes 687 days for Mars to orbit the sun and it only takes the Earth 365 days to orbit the sun, this happens because Mars is farther away from the sun.
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