/sci/ - Science & Math

https://youtu.be/BP30-73Bd2g

>>7614331
From what I've read, yes it's totally accurate except for a couple of discrepancies that the author just didn't look into far enough to understand that they don't make sense, but they were sort of negligible, if I remember correctly.

>>7614331
He literally farmed in his own shit, so I say it pretty accurately conveyed the situation.

>>7614367
The first shit he used to farm was from the qt computer chick. All I could think of was how many autists in that situation would have done something that made NASA say "fuck this loser, he can die there"

It was a solid man vs nature flick. We don't see those often, and when we do they try to shoehorn an evil human in halfway through (I'm looking at you Dr. Mann).

I went in without any real expectations and enjoyed it. Decent survival film with a fair amount of comedy.

Also enjoyed it a lot, but was recently wondering with a friend why he did not get scurvy? The ration packs had vitamins?

>>7614331
relatively certain the dude who wrote the book worked at JPL. book's on the shelf, just too lazy to pick it up and check.

>>7614474
I thought about the same thing briefly, then figured NASA probably puts vitamins in the rations or at least some vitamins on board the hab

>>7614382
>they try to shoehorn
you sound like my Grandpa

>>7614331
>The Martian
Stopped reading right there.

>>7614624
Who the fuck cares about what you do, little speck

>>7614624
want a lollipop?

>>7614624
When was the last time that you considered suicide?

>>7614624
Well, we can see that you can't form an actual sentence and that you're a faggot. Odds are not on your side, anon.

>>7614589

Haha. It's just something that bothers me in sci-fi man vs space films.

Sunshine - amazing film, could have been a 10/10 but they decided the plot needed man vs man in the final act and out of nowhere it becomes a slasher flick.

Interstellar - Starts off solid and then man vs man comes into play and later magic time travel.

For some reason directors don't think man vs space is enough.

>>7614474
The book explains that he had lots of vitamins.

It does not explain why NASA would send huge excesses of some supplies and life support equipment that seems able to work without spare parts or maintenance pretty much forever, but leave out key elements necessary for survival even though they would be compact, easy to include, and could be used for important research.

The main plot points just don't work, because of science:
- the storm scene that separates him wouldn't happen (wind forces are not that strong on Mars)

- you can't grow a crop of potatoes normally with ordinary indoor lighting fixtures or normal indoor lighting energy consumption (we don't notice it because of how our eyes adjust, but sunlight is hundreds of times more intense than typical indoor lighting - ~1 kW of actual light energy per square meter vs. an inefficient 100-watt-electric lightbulb for a whole room with many square meters)

- hydrazine decomposition in the manner described wouldn't be complete enough to prevent the hab from being thoroughly contaminated with this highly toxic substance

- it's implausible that the canvas roof of the ascent vehicle would rip and significantly affect the trajectory (the atmosphere is VERY thin on Mars, and he'd be gaining altitude and getting out of it very quickly as he gained speed)

-there would be no completely-missing-the-rendezvous urgency to drive the drama of the final rendezvous, at most, they'd be worried about the rendezvous taking so long that he'd run out of air, and we'd already seen that he could stay in the suit all day

Other things don't make sense, because of engineering / mission planning:
- *nearly* everything needed for stay-until-resupply or travel-to-other-mission-site backup options are provided, but NASA doesn't bother with the last bit of effort to make them viable without crazy improvisations

- lack of backup radios, when radios are cheap and light

- no planned food production experiments/supplement!

>>7614714
>interstellar
>ever solid
I would say, no

>>7614784
>the storm scene that separates him wouldn't happen (wind forces are not that strong on Mars)

Correct. Maximum wind speeds on Mars have been measured to be about 60mph, and the atmospheric density is about 0.6%. That means a Martian storm wind via its kinetic energy would deliver about 1% of the energy that an Earth storm wind (at >100mph) delivers. In other words, it would literally feel like a slight breeze.

Hollywood has a lot of trouble making drama work when using real science.

>>7614334
>yes it's totally accurate except for a couple of discrepancies that the author just didn't look into far enough to understand that they don't make sense

that pretty much describes any movie, including twilight.

Moon > The Martians. /thread

They did a resupply at earth. They could have refueled then, and then they'd be able to brake in the Mars orbit and make the rendezvous with him much easier

>>7614714
Its starts off accurately?

NASA needing to visit alien wormholes in Saturn's orbit so they can explore a new solar system for places to grow potatoes seemed solid to you?

Why did the have spare everything except communications?

Seems like a pretty important redundancy to have