Test Your Knowledge About Lighthouses...
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Describe how a Fresnel lens works
What is your favorite lightouse and why?
Which of these fuel sources have been used in lighthouses? (check all that apply) Sperm whale oil Hydrogen Kerosene Solar Power
Which of the following have contributed to making lighthouses not as vital as they once were? Radar Global positioning systems Navigational buoys All of the above
Who invented the Fresnel lens? Fresnel August Argand Fresnel Augustin Fresnel August Argand
Unique markings are painted on lighthouses to: scare away birds hide them in the fog make them look different make them beautiful make them visible camoflage them (select the most appropriate options- make multiple selections with Command-Click on the Macintosh and Ctrl-Click on Windows)
