Recent comments in /f/space

jamesangellaw t1_j5x13vz wrote

I honestly cried from joy. I read that book probably five times starting a decade or more before the movie. Seeing the battle school on the big screen was moving.

Did it not do justice to the physical and mental torture of Ender. Of course. But it was still beautiful to me.

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Damiklos t1_j5x0r1t wrote

So I get the whole no sense of up or down in space.

Assuming you could survive the descent thru the atmosphere. At what point would the brain perceive your going down towards the ground? I guess at some point the sensation of floating thru space and heading towards the earth changes into falling towards the earth.

Edit: corrected punctuation

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The_Solar_Oracle t1_j5x01a0 wrote

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The_Solar_Oracle t1_j5wznpu wrote

Separating aluminum from oxygen on the Moon in the first place is a little tricky

Unlike Earth, where most aluminum is recovered from bauxite using the Bayer process (producing alumina, or aluminum oxide) and then the Hall–Héroult process, aluminum on the Moon is overwhelmingly anorthite that cannot be processed in the same way.

Instead, more energy intensive methods must be used. Perhaps the most favored alternative is using the FFS Cambridge Process (typically used on titanium oxides), as detailed in Ellery et al.'s FFC Cambridge Process and Metallic 3d Printing for Deep In-Situ Resource Utilization - A Match Made on the Moon. Energy production may be an issue, especially if all the refining has to take place on the Moon, where nuclear power would have to employ enormous or very high output radiators to shed their waste heat and where Lunar nights can reduce Solar power input.

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thenoone1984 t1_j5wzbz5 wrote

Do not watch the movie. It was absolute shit. There is a reason they never made any of the other ones into a movie. That happens a lot when movie producers royally screw up the first movie adaptation (e.g. Eragon, ATLA, and so many others).

Just enjoy the books.

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I_Am_King_Midas t1_j5wz5vl wrote

We are winning in Florida. It has one of the highest rates of migration to the state. I know you dont like this but, Floridians also really like DeSantis and he has a high approval rating.

As far as Florida seeming "crazy" it's the sunshine laws and then people trying to compare the current Conservative main states of Florida and Texas to the liberal main states of California and New York. Whichever side of the spectrum you fall on, you will likely have a negative opinion of the places associated with the opposite side.

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SpartanJack17 t1_j5wyu02 wrote

Reply to Moon by Steder420

Hello u/Steder420, your submission "Moon" has been removed from r/space because:

  • Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

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Fluffbutt69 t1_j5wyn46 wrote

I think this question depends on your expectations of up and down.

If you're only thinking in terms of reference frames, it could be whatever you want. Though conventionally, down would be towards Earth.

In terms of acceleration and feeling a force applied to you, there are 3 scenarios I can see. We will define the direction of acceleration as "down"

  1. Acceleration toward earth if you are entering orbit at less than terminal velocity. In this case is towards earth

  2. No acceleration towards earth if you are entering at terminal velocity. In this case there is no down.

  3. Decceleration towards earth if you are entering faster than terminal velocity. In this case down is towards where you came from.

I would argue that case 2 only exists at 1 point in the atmosphere as terminal velocity will be gradient with the density of atmosphere. In this case (2) down would be towards earth, towards space, and undefined depending on your distance from the surface.

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SpartanJack17 t1_j5wyl1a wrote

Hello u/lifesyndrome, your submission "If you were in space facing Antartica and you flew towards it, gravity-wise would you be going up or down?" has been removed from r/space because:

  • Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

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jamesangellaw t1_j5wy5we wrote

Just the first. And only really a subset of the first (like most movies… hard to cover 400’pages in 2 hrs).

There are at least 10 other books. Most take place hundreds or thousands of years after Ender’s Game.

Second is called Speaker for the Dead.

I cannot recommend more highly.

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