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Comments on Puzzle #16344: WCP # 96 A long night
By Brian Bellis (mootpoint)

peek at solution       solve puzzle
  quality:   difficulty:   solvability: moderate lookahead  

Puzzle Description Suppressed:Click below to view spoilers

#1: bugaboo (bugaboo) on Nov 11, 2011

after initial dots from line logic start with edge logic on both the 4 clues in r1 (you will only get 1 more dot for each 4 clue but this is crucial)
then once you get a dot in r1c3 and r1c19 you can do edge logic on the 7 clues in c3 and c19 (if you try edge logic on the 7 clues too soon you wont get anywhere)
line logic to finish almost all the rest with smile logic twice to finish the last bit at the top
great solve
no guessing
#2: Marie-Louise Ambrey (marz71) on Nov 12, 2011
Rather brilliant Brian, I absolutely love how this puzzle solved, so much fun in a 20x20, thank you! :)
#3: Susan Duncan (medic25733) on Nov 12, 2011
Interesting concept - great puzzle
#4: Aldege Cholette (aldege) on Nov 12, 2011 [SPOILER]
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#5: Web Paint-By-Number Robot (webpbn) on Nov 12, 2011
Found to be logically solvable by gator.
#6: Gator (gator) on Nov 12, 2011
Excellent puzzle. Ditto on the logic.
#7: Kristen Vognild (Kristen) on Nov 12, 2011 [SPOILER]
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#8: Teresa K (fasstar) on Nov 12, 2011 [SPOILER]
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#9: Jota (jota) on Nov 12, 2011
Thanks for a timely entry! Or one could forget the alarm clock and since the moon has a light and dark side that never changes, one could consider that night is forever on one side and never on the other.

#10: Kristen Vognild (Kristen) on Nov 12, 2011
My guess is Central time, because they communicate(d) with Houston.
#11: Tom King (sgusa) on Nov 12, 2011
Fun solve!
#12: Joel Lynn (furface1) on Nov 12, 2011
It's likely they used Zulu (Greenwich) Universal time, as is used for military communication.
#13: Teresa K (fasstar) on Nov 12, 2011
Joel is right. Info on Universal Time from NASA:
http://eclipse.gsfc.nasa.gov/SEhelp/TimeZone.html
#14: Byrdie (byrdie) on Nov 12, 2011 [HINT]
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#15: Brian Bellis (mootpoint) on Nov 12, 2011 [SPOILER]
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#16: Joe (infrapinklizzard) on Nov 13, 2011 [SPOILER]
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#17: Kristen Vognild (kristen) on Nov 13, 2011 [SPOILER]
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#18: Brian Bellis (mootpoint) on Nov 13, 2011
The moon's orbital axis is tilted a few degrees (my recollection is about 5) off of the ecliptic. The ecliptic is the imaginary line that the sun travels across the sky relative to the background stars. This AND the fact that the moon is in an elliptical orbit around the Earth so is speeding up and slowing down each month does allow us to see more than 50%. This apparent lunar wobble is called libration.
#19: Tom O'Connell (sensei69) on Nov 13, 2011
thx 4 entry..and education all
#20: Mike Kam (zl.oft) on Mar 28, 2012
really nice!
#21: Brian Bellis (mootpoint) on Mar 29, 2012
Thanks.
#22: Jan Wolter (jan) on Oct 28, 2013
A correction to Joe's response #16 above: Mercury does not always have the same side facing the sun. Mercury rotates exactly three times around it's axis for every two orbits it completes around the sun. From the point of view of a person on Mercury, a "day", the time from one sunrise to the next, lasts exactly two "years", the period of time it takes to orbit the sun (one Mercury year = 88 earth days).

Because days and nights are each 88 earth days long and there is no atmosphere to spread the heat around, nights get very very cold (-180 C or -280 F) and days get very, very hot (420 C or 800 F).
#23: Tom O'Connell (sensei69) on Oct 28, 2013
the settles it Bran, you'll have go by yourself

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