Difference between revisions of "AY Honors/Lighthouses - Advanced/Answer Key"

Revision as of 13:30, 13 November 2007

Template:Honor header

1. Have the Lighthouses Honor

Template:Ay prerequisite

2. Make a scrapbook including the following:

a. Pictures, post cards or drawings of twenty-five lighthouses. Label should included a brief description of: location, year built, active/non-active status, and order of the lens.

b. Write up a short history of the above lighthouses.

c. Include drawings/pictures and answers to all the requirements for this honor in your scrapbook.

3. List the development of a Fresnel lens, including:
a. Name of the gentleman that invented it.
b. Country that he came from
c. Year developed

Augustin-Jean Fresnel

Augustin-Jean Fresnel (pronounced fray-NELL) is most often given credit for the development of this lens for use in lighthouses.

Fresnel (May 10, 1788 – July 14, 1827), was a French physicist who contributed significantly to the establishment of the theory of wave optics.

According to Smithsonian, the first Fresnel lens was used in 1822 in a lighthouse on the Gironde River in France, Cardovan Tower; its light could be seen from more than 20 miles out.

4. Draw a Fresnel lens:

a. Show how prisms are used to concentrate light

b. Draw a bull’s eye lens and state its purpose

5. Make a chart showing each class of Fresnel lens:

a. Define order and list by size

b. Name at least one lighthouse using each order

6. Research and describe the history of the mechanism for rotating lights

7. Make a chart of six lighthouses showing nighttime (light) and daytime (daymark) signature.

8. What is a lightship? Why and where are lightships needed?

9. Read about lighthouse keepers and list some of the hazards they faced in completing their duties.

10. Study quotes by Ellen White mentioning lighthouses and discuss the meaning. Place a copy of the quotes in your scrapbook.

11. Obtain a “Lighthouse Passport” and have it stamped at 10 different lighthouse locations.

12. Build a lighthouse modeled after a real lighthouse using a lighthouse kit, wood, or other medium. Know the name, location, and date when the actual lighthouse was originally built.

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 ===c. Include drawings/pictures and answers to all the requirements for this honor in your scrapbook.===
 ==3. List the development of a Fresnel lens, including: <br>a. Name of the gentleman that invented it. <br>b. Country that he came from <br>c. Year developed==
-[[Image:Afresnel.jpg|thumb|Augustin-Jean Fresnel]]
+[[Image:Augustin Fresnel.jpg|thumb|Augustin-Jean Fresnel]]
 Augustin-Jean Fresnel (pronounced fray-NELL) is most often given credit for the development of this lens for use in lighthouses.