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Thread: Why do things appear to move faster when they're closer to us?w

  1. #1 Why do things appear to move faster when they're closer to us?w 
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    Why do things that are closer to us appear to move faster than those that are farther away from us?


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    ▼▼ dn ʎɐʍ sıɥʇ ▼▼ RedPanda's Avatar
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    Here's a link (hopefully) explaining it:
    Parallax - Wikipedia, the free encyclopedia


    SayBigWords.com/say/3FC

    "And, behold, I come quickly;" Revelation 22:12

    "Religions are like sausages. When you know how they are made, you no longer want them."
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    Genius Duck Moderator Dywyddyr's Avatar
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    Because the angle covered (in the visual field) is greater close up than it is far away.
    Thus we get the (entirely false) impression that, since it's gone through a larger angle (in a given time), it must be moving faster.
    "[Dywyddyr] makes a grumpy bastard like me seem like a happy go lucky scamp" - PhDemon
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    Thanks RedPanda and Dywyddyr
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    ▼▼ dn ʎɐʍ sıɥʇ ▼▼ RedPanda's Avatar
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    Quote Originally Posted by molecool View Post
    Thanks RedPanda and Dywyddyr
    NP

    (It's not something I am especially familiar with, but if you don't know the term 'Parallax' then it is not exactly a word you can guess.)
    SayBigWords.com/say/3FC

    "And, behold, I come quickly;" Revelation 22:12

    "Religions are like sausages. When you know how they are made, you no longer want them."
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  7. #6  
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    A meter stick closer 10 meters from you takes up less field of view than 100 meters away.
    Newbie to Science, trying to educate myself on this forum and further my scientific knowledge.

    I like to ask a ton of questions so please be understanding!

    I like to think of new stuff and in new ways.
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  8. #7  
    Genius Duck Moderator Dywyddyr's Avatar
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    Quote Originally Posted by ScienceNoob View Post
    A meter stick closer 10 meters from you takes up less field of view than 100 meters away.
    Uh yeah.
    A metre at 10 metres subtends 100 millirad.
    A metre at 100 metres subtends 10 millirad.
    100 is less than 10, right.
    "[Dywyddyr] makes a grumpy bastard like me seem like a happy go lucky scamp" - PhDemon
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    Forum Bachelors Degree GoldenRatio's Avatar
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    Quote Originally Posted by RedPanda View Post
    Quote Originally Posted by molecool View Post
    Thanks RedPanda and Dywyddyr
    NP

    (It's not something I am especially familiar with, but if you don't know the term 'Parallax' then it is not exactly a word you can guess.)


    Because you said Parallax XD
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    ▼▼ dn ʎɐʍ sıɥʇ ▼▼ RedPanda's Avatar
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    Quote Originally Posted by GoldenRatio View Post
    Because you said Parallax XD
    That is a bit of a crap super-power: "The further away he is, the slower he moves!"
    SayBigWords.com/say/3FC

    "And, behold, I come quickly;" Revelation 22:12

    "Religions are like sausages. When you know how they are made, you no longer want them."
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  11. #10  
    Forum Radioactive Isotope cosmictraveler's Avatar
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    Quote Originally Posted by RedPanda View Post
    Quote Originally Posted by GoldenRatio View Post
    Because you said Parallax XD
    That is a bit of a crap super-power: "The further away he is, the slower he moves!"
    That's because he is getting tired of running away.
    When the power of love overcomes the love of power the world will know peace.
    Jimi Hendrix
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    ▼▼ dn ʎɐʍ sıɥʇ ▼▼ RedPanda's Avatar
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    Quote Originally Posted by cosmictraveler View Post
    Quote Originally Posted by RedPanda View Post
    Quote Originally Posted by GoldenRatio View Post
    Because you said Parallax XD
    That is a bit of a crap super-power: "The further away he is, the slower he moves!"
    That's because he is getting tired of running away.
    TBH: the further I run away, the slower I get - but that's not a super-power. That's a lack of aerobic training.
    SayBigWords.com/say/3FC

    "And, behold, I come quickly;" Revelation 22:12

    "Religions are like sausages. When you know how they are made, you no longer want them."
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