... and paper-based collections were made from mechanical wood pulp and other ingredients that tend to compromise the intrinsic stability of cellulose due to a high amount of lignin remain in the pulp. Because lignin rejects water and resists bonding, it is often undesirable, and its presence in paper is proved to contribute to chemical degradation (Turner 1998, p 21). Heitner (1993) summarizes the ... and irreversible and therefore the next chapters will introduce how typical damages will react and influence to paper and paper-based collections. Discoloration Unlike the uniformly white col...

• Word Count: 1805
• Approx Pages: 7
• Has Bibliography
• Grade Level: Undergraduate

... sun hits is more visible and we can see its color. The moon works the same way it's just less light making it harder to see the color. For example, if I"m a scuba diver and when I go under water the last color I see is blue. The color of the water once under water I can no longer see color except for what little portion of the sun that peers down through the ... water giving every thing a grayish color. But when I bring a dive light down with me I can actually see ... every thing's color. That's why swimwear is reflective so you can see it ... ...

• Word Count: 1970
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School

... again I have to say that I was so confused and amazed by what my eyes were seeing, that I completely forgot to keep breathing. I got really cold so I had to get out of the water. I found myself a cold and uncomfortable rock to sit, so that I could view where I was, again it was beautiful! It was all the opposite from the dark forest, instead ... between the rocks and quickly dissolved leaving the wet rock with a dark grey almost black stain. What a wonderful world I discovered. Standing tall in front of me I was surrounded by cliffs. I knew for sure that the rock of the cliffs were lime...

• Word Count: 1439
• Approx Pages: 6
• Grade Level: High School

... from the sun and convert it into chemical energy, like glucose. The chemical formula for photosynthesis is 6CO2+6H2O+light---->C6H1206+6O2. This can also be written carbon dioxide+water+light energy----->sugar(glucose)+oxygen. Photosynthesis takes place in the plants chloroplast. And chloroplasts contain chlorophyll, a very important substance. Chloroplasts are usually portrayed as "a big fat sack ... mL beakers Timer White light (100W) Green light (100W) Red light (100W) Blue light (100W) Tin foil Water Start off preparing the bicarbonate solution. The bicarbonate is an alternate disso...

• Word Count: 1355
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

... n=10) had been taken, the same procedure was performed but with the lens sitting on a thin film of water instead. With the two sets of readings taken, the radius of curvature of the lens and refractive index of the liquid could be calculated. Results The width of the gap, dn, between the lens and glass surface was calculated with, 2dn = (n + ½)ë for bright fringes [1] 2dn = në for ... , r0, to be, 12.2 ± 0.8 cm When the medium between the lens and plate was changed from air to water we were able to calculate the refractive index of water, , as, 1.39 ± 0.04 Holograms Holography is "l...

• Word Count: 1756
• Approx Pages: 7
• Has Bibliography
• Grade Level: High School

... he looked like the ultimate detective with the thin mustache, always was in focus, and appeared to be someone you could look up to. Anna is sort of mysterious. She is a beautiful dark-haired girl that is upset and depressed over Harry. She mentions that Harry never grew up, but the world grew up ... ; she looks depressed and angry at Holly about trying to find Harry. Holly is dressed in his button down suit that appears to be light in color. Anna and Holly start to quarrel, and Harry comes into the scene and he learns that his friend has betrayed him by helping the police find him ... he ...

• Word Count: 1475
• Approx Pages: 6
• Grade Level: High School