What does the 'E' in LASER stand for?
(20 points)
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| 1927 responses | 4 comments | delete | flag | ask me again later | Link: |
While visiting Paris in 1783, Benjamin Franklin's hotel room window allowed him a pleasant view of the Montgolfier brothers' initial public demonstration of ... what?
(20 points)
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| 3006 responses | 21 comments | delete | flag | ask me again later | Link: |
What were the 560 million acres President Thomas Jefferson bought from Napoleon, doubling the size of the U.S.?
(20 points)
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| 4563 responses | 38 comments | delete | flag | ask me again later | Link: |
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