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  • Did you know that Mars has polar ice caps just like we do here on Earth?

  • With the right technology, they might be our water source

  • should we ever move to the red planet.

  • But in their current state,

  • these caps could be a source for extreme interplanetary sport.

  • Want to ski on snow unlike anything else in the Universe?

  • Want to test your skills on the biggest mountain in the Solar System?

  • Bring your '80s snowsuit if you must,

  • just be sure to pack a good helmet.

  • This is 'What If,'

  • and here's what would happen if you could ski on Mars.

  • Even though Mars is much smaller and much colder than our planet,

  • its abundance of water ice makes it a compelling option for life on another planet.

  • And with the concept of a future Mars colony gaining popularity,

  • homes on the red planet might soon be on the market.

  • If we do end up living on Mars someday, what would we do for fun?

  • Technology will have advanced, so there'll be a lot on offer.

  • But what about the classics?

  • Like enjoying the great outdoors?

  • Lucky for you, Mars is home to the highest mountain in our Solar System.

  • Olympus Mons is a shield volcano that's 21,000 meters (69,000 ft.) tall.

  • That's more than 4-times higher than the highest ski slopes on Earth.

  • But if you call yourself a black diamond devil, then this isn't the hill for you.

  • It turns out, Olympus Mons is more boring than the bunny hill.

  • It has an average slope of just 5 degrees.

  • And considering that Martian gravity is just one-third of what we experience here on Earth,

  • it might take you a while to get started.

  • On the flip side, because of that weak gravity, you could jump three times as high.

  • So this...

  • ...could be this!

  • Let's not get ahead of ourselves. We haven't even started moving yet!

  • With an average temperature of -60°C (-80°F), it's definitely cold enough to snow on Mars.

  • But considering its dry, low-pressure atmosphere,

  • snow barely reaches its surface, and never stays for very long.

  • That said, Mars does have two poles that consist of water ice and carbon dioxide,

  • which in solid form is dry ice.

  • And at Mars' south pole, there's a dry ice deposit that's 1000 meters (3281 ft.) deep.

  • But before you give it a go,

  • note that the friction from your skis will heat up the dry ice,

  • and turn it into a gas, causing you to lose control.

  • If you really wanted to, you could try your luck on the water ice

  • but its density brings it closer to the ice skating conditions you'd find on Earth.

  • So why use a flat ski, when you could go further with a sharp blade?

  • Then again, there's more than one way to ski,

  • so if you're that determined to make this work,

  • then just slap-on some hard wax and take things cross-country.

  • Or is that cross-planet?

  • Whichever style you choose, it's a double-edged sword.

  • Shorter and thinner skis are your best bet for reaching fun speeds,

  • but they're also going to have to support your clunky space boots.

  • And if you don't get the balance right...

  • Well, you had a good run.

  • So while you could go skiing on Mars,

  • the risks are probably not worth the reward.

  • Maybe stick to something safer like walking.

  • Whatever you do, wear a helmet, and keep watching 'What If.'

Did you know that Mars has polar ice caps just like we do here on Earth?

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火星でスキーができるとしたら? (What If You Could Ski On Mars?)

  • 23 0
    林宜悉 に公開 2021 年 01 月 14 日
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