Brain Teasers
Back From the Moon
Riddle
Riddles are little poems or phrases that pose a question that needs answering. Riddles frequently rhyme, but this is not a requirement.Riddle
I'll point out information
During your presentation
A program guides my movement
Enabling gem improvement
When reflected off the Moon
My light returns to Earth soon
What am I?
During your presentation
A program guides my movement
Enabling gem improvement
When reflected off the Moon
My light returns to Earth soon
What am I?
Answer
a laserLines 1-2: Low-power lasers are used as pointing devices for video presentations, etc.
Lines 3-4: With the aid of computer technology (including a computer "program"), gemstones (e.g. diamonds) can be cut using a laser more accurately than through the use of other methods.
Lines 5-6: Retroreflectors on the Moon are used in the practice of Lunar Laser Ranging (LLR) to measure the distance between surfaces on the Earth and the Moon. In this practice, laser light is directed toward the Moon and is reflected back to Earth. Since light travels very quickly, the laser light returns soon.
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