History Fridge / TwoThousandTenTheYearWeMakeContact

!FridgeLogic
* Wouldn't the existence of two suns mess with various animal/plant life cycles that are dependent on a day/night cycle?
** It would, and it was explicitly mentioned by Arthur C. Clarke in his novel.
** Woopsie.
*** When Earth is between the Sun and Jupiter, it is still about 900-1000 times further from Jupiter than Europa is. Assuming Jupiter looks from Europa like the Sun from Earth, its magnitude from Earth would be -12m. That's about 10000 times brighter than Sirius - and about as bright as a half moon. Meaning that the night sky would look like in a moonlit night, except with a very brilliant dot. Farthest from Earth, Jupiter would still be almost half as bright at -11m, and still a very bright dot on the day sky.
*** So, in other words, the night sky as we know it would still exist, just with at least one light source being equivalent to a half-moon being present at all times? Notwithstanding the effects on sea turtles, migratory animals, etc., that doesn't sound quite drastic enough to warrant lovers' being ticked off as Clarke proposed.
*** Even in that case Lucifer would not be visible all the year and would have the same visibility Jupiter had before (and has in RealLife), one part of the year visible all the night, the opposite moment of the year invisible being too close to the Sun, and between visible as evening star or morning star[[note]]To be more exact during more or less part of the night, same as what happens with the Moon[[/note]]. However, besides messing with plants and animals, it would almost be a ''hell'' for (Earth-based) astronomers too, who would have even less dark nights to observe the sky (as if the Moon when it's past quarter and the bad weather were not enough, just ask an astronomer).
*** Fortunately, most Earthbound telescopes are radio, etc. and the serious optical telescopes are in space.
* The movie is deliberately vague about what "the problem in Central America" actually is. Is the USSR trying to supply nuclear missiles to Honduras, like they tried to do with Cuba, or is it something else? Cuba is an island, so it makes sense that the US can establish a naval blockade around it, but Honduras has land borders, so why couldn't the USSR transport whatever it is over land?

* The movie is deliberately vague about what "the problem in Central America" actually is. Is the USSR trying to supply nuclear missiles to Honduras, like they tried to do with Cuba, or is it something else? Cuba is an island, so it makes sense that the US can establish a naval blockade around it, but Honduras has land borders, so why couldn't the USSR transport whatever it is over land? -- [=SuddenFrost=]

*** Even in that case Lucifer would not be visible all the year and would have the same visibility Jupiter had before (and has in RealLife), one part of the year visible all the night, the opposite moment of the year invisible being too close to the Sun, and between visible as evening star or morning star[[note]]To be more exact during more or less part of the night, same as what happens with the Moon[[/note]]. However, besides messing with plants and animals, it would almost be a ''hell'' for (Earth-based) astronomers too, who would have even less dark nights to observe the sky -as if the Moon when it's past quarter and the bad weather were not enough, just ask an astronomer-.

* The ''Leonov'' crew's triangular mission patches show both the Soviet and U.S. flags, but the U.S. flag is upside-down: the stripes are on top and the stars are on the bottom. Flying a flag upside-down is only supposed to be used to signal a dire emergency... but the reason there are Americans on this mission is precisely because needing to rescue ''Discovery'' before it crashes into Io ''is'' a dire emergency. -- [=SuddenFrost=]
** There's also a bit of a poke at [[CooperationGambit the nature]] of the mission in that patch: Effectively, "This is a ''Soviet'' mission and don't you Yanks forget it." -- [=Donald The Potholer=]

* In 2001, Dr. Heywood Floyd seems to be a "company man" - he even tells the Moonbase staff that "formal security oaths" will be required to keep their mouths shut about the Monolith. The 2010 Floyd is a cowboy. Being blamed for the failure of the ''Discovery'' mission, the loss of the crew and still not knowing what happened burned him out. So he won't take crap from anyone.

* In 2001, Dr. Heywood Floyd seems to be a "company man" - he even tells the Moonbase staff that "formal security oaths" will be required to keep their mouths shut about the Monolith. The 2010 Floyd is a cowboy. Being blamed for the failure of the ''Discovery'' mission, the loss of the crew and still not knowing what happened burned him out.
So he won't take crap from anyone.

*** Fortunately, most Earthbound telescopes are radio, etc. and the serious optical telescopes are in spaces.

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**** Even in that case Lucifer would not be visible all the year and would have the same visibility Jupiter had before (and has in RealLife), one part of the year visible all the night, the opposite moment of the year invisible being too close to the Sun, and between visible as evening star or morning star[[note]]To be more exact during more or less part of the night, same as what happens with the Moon[[/note]]. However, besides messing with plants and animals, it would almost be a ''hell'' for (Earth-based) astronomers too, who would have even less dark nights to observe the sky -as if the Moon when it's past quarter was not enough, just ask an astronomer-.

**** Even in that case Lucifer would not be visible all the year and would have the same visibility Jupiter had before (and has in RealLife), one part of the year visible all the night, the opposite moment of the year invisible being too close to the Sun, and between visible as evening star or morning star. However, besides messing with plants and animals, it would almost be a ''hell'' for (Earth-based) astronomers too, who would have even less dark nights to observe the sky -as if the Moon when it's past quarter was not enough, just ask an astronomer-.

**** Even in that case Lucifer would not be visible all the year and would have the same visibility Jupiter had before (and has in RealLife), one part of the year visible all the night, the opposite moment invisible being too close to the Sun, and between visible as evening star or morning star. However, besides messing with plants and animals, it would almost be a hell for (Earth-based) astronomers too, who would have even less dark nights to observ the sky -as if the Moon when it's past quarter was not enough, just ask an astronomer amateur or professional-.

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* The existence of a midpoint airlock on Discovery (Which the astronauts from the Leonov use to gain access to the rotating Discovery), does beg the question of why did Frank Poole take the pod to fix the main antenna in ''Film/TwoThousandOneASpaceOdyssey'', instead of just going out the airlock nearest the problem himself.

* The existence of a midpoint airlock on Discovery (Which the astronauts from the Leonov use to gain access to the rotating Discovery), does beg the question of why did Frank Poole take the pod to fix the main antenna in ''Film/TwoThousandOneASpaceOdyssey'', instead of just going out the nearby airlock.

**** So, in other words, the night sky as we know it would still exist, just with at least one light source being equivalent to a half-moon being present at all times? Notwithstanding the effects on sea turtles, migratory animals, etc., that doesn't sound quite drastic enough to warrant lovers' being ticked off as Clarke proposed.

*** When Earth is between the Sun and Jupiter, it is still about 900-1000 times further from Jupiter than Europa is. Assuming Jupiter looks from Europa like the Sun from Earth, its magnitude from Earth would be -12m. That's about 10000 times brighter than Sirius - and about as bright as a half moon. Meaning that the night sky would look like in a moonlit night, except with a very brilliant dot. Farthest from Earth, Jupiter would still be almost half as bright at -11m, and still a very bright dot on the day sky.

** Woopsie. Looks like I [[DidNotDoTheResearch Did Not Do The Research]].

*** When Earth is between the Sun and Jupiter, it is still about 900-1000 times further from Jupiter than Europa is. Assuming Jupiter looks from Europa like the Sun from Earth, its magnitude from Earth would be -12m. That's about 10000 times brighter than Sirius, but a million times less bright than the Sun - and about as bright as a half moon. Except it's not a grey disk, but a very brilliant dot. Farthest from Earth, Jupiter would still be almost half as bright at -11m, and still a very bright dot on the day sky.

** Woopsie. Looks like I [[DidNotDoTheResearch Did Not Do The Research]].

** It would, and it was explicitly mentioned by Arthur C. Clarke in his novel.

* Wouldn't the existence of two suns mess with various animal/plant life cycles that are dependent on a day/night cycle?

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