(Yes, we now know there’s ice and even liquid water on present-day Mars — that doesn’t mean they’re located where he happened to land.) For that, he uses some chemistry: He combines a precise ratio of hydrogen, drawn from rocket fuel, and oxygen to create the necessary water.
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What was scientifically accurate in the Martian?
While there are a myriad of ways to protect astronauts from radiation, The Martian never references any defensive techniques. When it comes to botany, The Martian was impressively accurate. Experiments have shown that Martian soil would be capable of supporting crops, with human waste used as an organic fertiliser.
How did the Martian create water?
There’s also the problem of hauling up water, which has yet to be found in plentiful liquid form on Mars. In “The Martian,” Damon’s character, astronaut Mark Watney, produces water by burning leftover rocket fuel and extracts the hydrogen from the resulting chemical reaction.
What chemical does Watney use as a source of hydrogen for his production of water?
Watney takes the risk of creating his own water by using his oxygenator (a device that creates oxygen from carbon dioxide), extracting hydrogen from the crew’s unused hydrazine fuel (from the MDV, or Mars Descent Vehicle), and burning them to create the extra water he needs to nourish his potatoes.
How did Mark Watney make oxygen?
On Mars, Watney can’t just step outside for a breath of fresh air To survive, he has to carry his own supply of oxygen everywhere he goes. But first he has to make it. In his Hab he uses the “oxygenator,” a system that generates oxygen using the carbon dioxide from the MAV (Mars Ascent Vehicle) fuel generator.
How does Watney solve the food problem?
That leaves Watney with another 1000 sols without food. His only solution – to grow potatoes on Mars using his own faeces (poo) as fertilizer!
What is the biggest scientific inaccuracy in The Martian?
Mars has a huge amount of water in the soil, for every cubic foot of water there’s about 35L of water in it. This means that rather than using rocket fuel and Martinez’ cross to make water he could have just gotten the soil and heated it up.
Why did Mark Watney have sores?
He broke a couple ribs due to the 12G’s he experienced during the MAV ascent. Being yanked along by a tether with Beck didn’t help matters. The scene in which Watney appears shirtless with a skin rash and skin sores is before he makes the MAV ascent. He was also injured by being thrown in the airlock.
How did NASA find out Mark was alive?
In the film version, they discover that he is still alive by noticing two things on the satellite imagery: The Rover has been moved from where it was parked originally (prior to the evacuation) The solar panels had been cleaned.
Why does Watney use toilet waste?
In Watney’s’s case, he uses his own poop, so he would contract only the pathogens he already has. “You can get away with it in a desperate survival situation, where you are a single person using your own manure to grow crops that only you eat,” Weir says.
Is the water on Mars drinkable?
It’s official. NASA scientists have found evidence of present-day liquid water on Mars. But before you start thinking about a second home there, know this: that water isn’t drinkable. It’s chock full of salts called perchlorates that can be toxic to humans.
What did Watney use as fertilizer?
The Martian , Andy Weir’s famous space novel-turned-movie, may be coming true—at least as far as potatoes are concerned, Business Insider reports. In the story, astronaut Mark Watney (played by Matt Damon in the movie), survives being stranded on Mars by growing potatoes—using his own feces for fertilizer.
What does Mark use to make water for his plants?
How does Mark plan to make water? Mark plans to create water by releasing hydrazine so it makes hydrogen and nitrogen and then burn the hydrogen to combine with oxygen.
How does Watney seal the hole?
Watney sealed the hole with plastic sheeting.
How does Mark Watney grow potatoes on Mars?
Mark Watney, played by Matt Damon, survives by fertilizing Martian soil with his feces, slicing potatoes, and planting the cuttings in the soil. This eventually grows him enough food to last hundreds of days.
Why does NASA have Watney save his urine?
Why does Watney want to save his urine and manure after he returns to the Hab? Watney wants to put his urine inside of the water reclaimer to produce more water, and he can use his feces for compost in his garden in the Hab.
How did Mark Watney make food?
In “The Martian,” Watney grows his own food by planting potato eyes in the ground. He fertilizes the plants with human waste and creates liquid water out of rocket fuel.
Why can’t plants grow on Mars?
It doesn’t have enough gravity or a magnetic field strong enough to hold in an atmosphere thick enough to keep it warm, with the sun the way it is now. Plants need liquid water. Mars today has none.
What problems does mark face in the Martian?
The first major problem Watney faces is getting stranded and wounded on Mars. The second problem Watney faces is how he is going to survive on mars till help can come. The final problem he faces is how is he going to get to the Ares, so he can leave Mars.
How does Watney solve the heat problem in the rover?
He uses the RTG (radioisotope thermoelectric generator) which is basically a lump of highly radioactive material that gives off heat.
How many sols did Mark Watney survive?
In “The Martian,” astronaut Mark Watney gets stranded on Mars. He’s stuck there for a total of 549 Martian days, which, since days on Mars are about 40 minutes longer than days on Earth, scientists refer to them as “sols.” 549 sols is a pretty long time.
What is the biggest error in The Martian?
1)The Dust Storm While the dust storm at the start of the movie plays a pivotal role in which the whole scenario of being stranded on Mars takes place, it is also one of the biggest mistakes in the movie. NASA stated that even the fastest winds of a “harsh” dust storm on Mars would only go sixty miles per hour.
Is The Martian Iron Man scene possible?
The ‘Ironman’ Stunt: Impossible “You can have small portions of your body touching space for relatively long amounts of time,” says Burger. “Once, a guy on a spacewalk had a cut in his suit, and his skin got stuck to the outside of the spacesuit and was touching the vacuum of space.
Can you make water from hydrazine?
It is definitely possible for the burning of hydrazine to create water.
How much weight did Mark Watney lose?
Even a minimal reduction in intake could cause an accumulative loss of body mass, and 560 Sols is about 80 weeks, so it’s not surprising if Watney lost 20-40% (15-30kg) of his body weight, assuming he’s in the healthy weight range for his height at the start of the movie.