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    naked eye

    US /ˈnekɪd aɪ/

    ・

    UK /ˈneikid ai/

    A1
    n.NounThe eye without any aids such as a telescope or binoculars.
    Some stars are only visible with a telescope, but others can be seen with the naked eye.

    Video subtitles

    数学者だけど「幾何学」について質問ある?| Tech Support | WIRED Japan

    17:54数学者だけど「幾何学」について質問ある?| Tech Support | WIRED Japan
    • So AmobiusStrip is a geometric figure with a rather unusual quality that's not visible to the naked eye, which is that it only has one side.

      So AmobiusStrip is a geometric figure with a rather unusual quality that's not visible to the naked eye, which is that it only has one side.

    • So a Mobius strip is a geometric figure with a rather unusual quality that's not visible to the naked eye, which is that it only has one side.

      So a Mobius strip is a geometric figure with a rather unusual quality that's not visible to the naked eye, which is that it only has one side.

    B1

    101科學教室:月食《國家地理》雜誌

    03:15101科學教室:月食《國家地理》雜誌
    • Unlike during a solar eclipse, it's safe to look at the moon with the naked eye during a lunar eclipse.

      Unlike during a solar eclipse, it's safe to look at the moon with the naked eye during a lunar eclipse.

    • Unlike during a solar eclipse, it's safe to look at the Moon with the naked eye during a lunar eclipse.

      Unlike during a solar eclipse, it's safe to look at the Moon with the naked eye during a lunar eclipse.

    B2

    The Last Star in the Universe – Red Dwarfs Explained

    05:51The Last Star in the Universe – Red Dwarfs Explained
    • It's impossible to see them with the naked eye; you've never seen one in the night sky.

      It's impossible to see them with the naked eye; you've never seen one in the night sky.

    • It's impossible to see them with the naked eye.

      It's impossible to see them with the naked eye.

    B2

    The History and Future of Everything -- Time

    07:11The History and Future of Everything -- Time
    • For 3,000,000,000 years, all life on Earth was invisible to the naked eye.

      For 3,000,000,000 years, all life on Earth was invisible to the naked eye.

    B1

    Gordon Ramsay Cooks the Perfect Pork Chop YOU Voted For!

    14:00Gordon Ramsay Cooks the Perfect Pork Chop YOU Voted For!
    • To the naked eye, you think maybe it's a little burnt.

      To the naked eye, you think maybe it's a little burnt.

    • To the naked eye, you'd think maybe it's a little burnt.

      To the naked eye, you'd think maybe it's a little burnt.

    B2

    Can Our Partners Change?

    05:45Can Our Partners Change?
    • Why don't they just reach out to us more, think of us more, hold us more? It's so simple. Except it's not. Not for them, at least. It would be as hard for these people to take this on board as it would be for us to run up a cliff face, levitate a car or fly between buildings. The difficulty may be traceless, it's every bit as real and as incontestable. We have to accept something beyond the evidence of our senses, in the way we have to accept a principle of physics that defies the naked eye. We have to accept that for a certain sort of person to say a sentence like, I can't live without you,

      Why don't they just reach out to us more, think of us more, hold us more? It's so simple. Except it's not. Not for them, at least. It would be as hard for these people to take this on board as it would be for us to run up a cliff face, levitate a car or fly between buildings. The difficulty may be traceless, it's every bit as real and as incontestable. We have to accept something beyond the evidence of our senses, in the way we have to accept a principle of physics that defies the naked eye. We have to accept that for a certain sort of person to say a sentence like, I can't live without you,

    • We have to accept something beyond the evidence of our senses—in the way we have to accept a principle of physics that defies the naked eye.

      We have to accept something beyond the evidence of our senses—in the way we have to accept a principle of physics that defies the naked eye.

    B1

    I Grill up Blue Corn Steak Tacos in Texas | Gordon Ramsay

    09:41I Grill up Blue Corn Steak Tacos in Texas | Gordon Ramsay
    • Cactus to the naked eye, lightly seasoned, okay?

      Cactus to the naked eye, lightly seasoned, okay?

    • Cactus to the naked eye.

      Cactus to the naked eye.

    B1

    Which Planet Has the Best Eclipse?

    08:41Which Planet Has the Best Eclipse?
    • About 18 of its moons are some combination of big enough and close enough to see them from Saturn with the naked eye – 6 of them are too big and their eclipses probably look mostly like nighttime, so B-tier.

      About 18 of its moons are some combination of big enough and close enough to see them from Saturn with the naked eye – 6 of them are too big and their eclipses probably look mostly like nighttime, so B-tier.

    • About 18 of its moons are some combination of big enough and close enough to see them from Saturn with the naked eye.

      About 18 of its moons are some combination of big enough and close enough to see them from Saturn with the naked eye.

    B1

    You're Technically HOTTER Than The Sun (with XKCD!)

    03:41You're Technically HOTTER Than The Sun (with XKCD!)
    • From earth, they'd look a bit brighter in the night sky enough that Ceres would become visible to the naked eye. 

      From earth, they'd look a bit brighter in the night sky enough that Ceres would become visible to the naked eye. 

    • a bit brighter in the night sky, enough that  Ceres would become visible to the naked eye. 

      a bit brighter in the night sky, enough that  Ceres would become visible to the naked eye. 

    B1

    What Happens to Your Body When You Die? - Reactions

    03:38What Happens to Your Body When You Die? - Reactions
    • For thousands of years, people thought that the dead's hair and fingernails kept growing after death because that's what it looked like to the naked eye.

      For thousands of years, people thought that the dead's hair and fingernails kept growing after death because that's what it looked like to the naked eye.

    • it looked like to the naked eye.

      it looked like to the naked eye.

    B1