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  • Mars has always been a hypothetical second home for humans,

  • but with plans to actually start sending people and colonising the red planet as soon as the next decade,

  • would you have what it takes to get to and live on Mars?

  • Your first challenge is getting through the launch.

  • High levels of g-force can damage the body

  • and at around 9gs most humans black out from lack of blood to the brain.

  • As a result, human missions are limited to around 3gs,

  • or 3 times the force of gravity on earth,

  • which astronauts are trained to withstand.

  • So if you can survive the first few minutes without rocket system failures or depressurisation issues,

  • then your other concern is protecting yourself from the Sun's radiation.

  • Leaving Earth's atmosphere and its protection,

  • you have an increased risk of cancer and damage to your Central Nervous System.

  • You'd wanna go when Earth and Mars are most closely aligned,

  • which only happens every 2 years,

  • and you'll spend almost 150 days on your one way trip.

  • You might also want to consider removing your gallbladder and appendix for your extended flight,

  • as it could protect those organs from bursting due to pressure changes.

  • Now that your body is transitioning to micro gravity,

  • you'll start to feel the negative effects of weightlessness.

  • Your bodily fluids will shift upwards throughout your body,

  • causing headaches and temporary blindness,

  • and you can also expect your digestive system to slow down as your body adjusts.

  • Because of limited space, you'd be wearing the same clothes for a long duration.

  • Even astronauts on the ISS wear their underwear for up to a week,

  • which is why female astronauts are more prone to getting UTIs in space.

  • NASA's research shows that astronauts can lose

  • upto 1% of bone mineral and density per month.

  • If you're willing to work out about 2 hours a day,

  • like the astronauts aboard the ISS do, you'll have a better chance of counteracting this.

  • Sex could help too, but it might be a bit difficult

  • due to Newton's 3rd law, a couple's every movement would counteract the other.

  • Que the 2SUIT: A space suit made for two that zips like a sleeping bag,

  • preventing pushing away from one another.

  • Once you've landed on Mars, you'll instantly start to notice the differences between

  • your new home and Earth.

  • Mars is further from the Sun, so the temperature ranges between -140° Celsius to 30° Celsius,

  • but that doesn't mean you can just walk outside on warmer days.

  • Earth's atmosphere is about 100 times more dense than Mars',

  • so you won't be protected from the Sun's radiation.

  • This means you might have to get used to living in an underground habitat.

  • Leaving your habitat, you'd likely wear a sweaty, 50 lb spacesuit

  • to protect your blood from boiling,

  • or your organs rupturing from the lack of atmospheric pressure.

  • The food would be freeze-dried food packed with nutritional requirements that tastes okay but

  • has a mushy texture, until your botanist can grow fresh fruit, vegetables and greens.

  • You'd have to get used to seeing no vegetation growing outside naturally,

  • or any people or animals moving about.

  • Using NASA's Mars Simulation research, you'd likely be living in a habitat

  • the size of a small, 900 square ft apartment with a handful of other martians.

  • You'd need to get along with people, or it may be difficult to find people to mate with

  • and grow a colony.

  • Genetic diversity is an important part of keeping large groups healthy.

  • Not having enough people to mate with often leads to inbreeding,

  • which research shows can lead to the loss of more than 80% of the diversity within a gene,

  • causing your small community to be vulnerable to extinction through disease.

  • Old research suggests that a new colony would need about 150 people

  • to preserve genetic variation, but newer studies suggest the the number is

  • between 10,000 and 40,000 people needed.

  • If that's true, you may have to wait a few months for more Martians to arrive

  • before you get jiggy.

  • Even knowing theses risks, you'd also have to pass

  • a space agency's astronaut test before going,

  • which are physically and mentally rigorous. But if you were accepted,

  • would you wanna go?

  • If you wanna know more about what life would actually be like living on Mars,

  • should you decide to go, check out our second video by clicking the screen,

  • or using the link in the description.

  • And subscribe for more weekly science videos, every Thursday :D

Mars has always been a hypothetical second home for humans,

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B1 中級 美國腔

你具備在火星上生活的條件嗎? (Do You Have What It Takes To Live On Mars?)

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    吳D 發佈於 2021 年 01 月 14 日
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