Placeholder Image

字幕表 動画を再生する

  • Ever since the first astronaut went to space almost 60 years ago,

  • over 500 people have blasted out of Earth's atmosphere.

  • They lived and worked in space at different times.

  • But nobody's ever been born there.

  • What if you were the first space baby to be carried aboard a space station?

  • This is WHAT IF,

  • and here's what would happen

  • if you were born on a space station.

  • So, what's so different about being born in space anyway?

  • No gravity?

  • Well, in fact, gravity on the International Space Station

  • is about 90% as strong as it is on the surface of the Earth.

  • So why do we see astronauts floating around inside it?

  • Let me explain.

  • Earth's gravity is pulling the ISS down.

  • But the ISS is moving very fast -

  • at the same speed that the Earth's surface is turning underneath it.

  • The space station is constantly falling to Earth but it will never hit it.

  • The free fall is what causes microgravity, making the astronauts float around.

  • So what would it be like to be born weightless?

  • Before we get to the birth part, let us just say

  • nobody's ever had sexual intercourse on a space station,

  • let alone made a baby.

  • It wouldn't be any kind of out-of-this-world experience.

  • Fluids work differently in microgravity.

  • You may not have the blood flow to get you or your partner aroused.

  • Sweat would build up around your body making it wet and sticky all over.

  • And that's if you could figure out

  • how not to push your partner away upon contact.

  • Conceiving a child would be a whole other problem.

  • In addition to a low-gravity environment, there's also so much radiation in space,

  • that it can affect a man's sperm count,

  • possibly even cause infertility.

  • And we don't even know exactly

  • what kind of changes space conditions would cause to a human embryo.

  • But let's imagine your pregnant mother arrived on a space station to give birth to you.

  • The trip to space alone would be hard enough on your mother.

  • Pushing you out of her body without the help of gravity

  • wouldn't be a piece of cake either.

  • If you made it out of the womb, a low-gravity environment

  • would affect your body systems as you grew up,

  • including your muscular development and eyesight.

  • When grown-up astronauts work aboard the space station,

  • their bone density depletes at a rate of about 1% per month.

  • Because it takes no effort to float in space,

  • they also tend to lose muscle strength.

  • Now, since there's no way to force a baby run on a treadmill

  • to keep its muscles forming,

  • as you grew on the space station, your skeleton might become deformed.

  • Your heart would be weak as it's never had to work against Earth's gravity.

  • Then there's space radiation.

  • It would increase the probability of cancer,

  • dysfunction of the heart and central nervous system,

  • and eyesight problems.

  • If, after surviving all that, you made the trip to Earth,

  • you wouldn't be able to walk or balance properly.

  • You might also struggle with interacting with people on Earth

  • since you grew up crammed into a very small space your whole life.

  • Until someone invents a gravity polarizer

  • to generate artificial gravity fields on a space station,

  • we probably shouldn't think about having babies in space.

  • But once they do, how long do you think it would it take

  • for us to become a galactic civilization?

  • That's a question for another WHAT IF.

Ever since the first astronaut went to space almost 60 years ago,


ワンタップで英和辞典検索 単語をクリックすると、意味が表示されます

B1 中級

宇宙ステーションで生まれたとしたら? (What If You Were Born on a Space Station?)

  • 59 3
    robert に公開 2021 年 01 月 14 日