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훈남유섭
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우와~~~
OPTICAL • Animated Gif by +Andrew Mashnich
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The Ames Room

Is constructed so that from the front it appears to be an ordinary cubic-shaped room, with a back wall and two side walls parallel to each other and perpendicular to the horizontally level floor and ceiling. However, this is a trick of perspective and the true shape of the room is trapezoidal: the walls are slanted and the ceiling and floor are at an incline, and the right corner is much closer to the front-positioned observer than the left corner (or vice versa).

www.en.wikipedia.org/wiki/Ames_room
Ramachandran - Ames room illusion explained

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어젯밤. 아니 오늘 새벽. 최고의 감동을 주었던 무대
기대치 않았던 선곡에, 뜻하지 않던 감동이 있었던 무대...

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외국인이 정리한 우리나라의 소셜

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30가지 크리스마스 로고~ 슬슬 카드를 쓸때가 되었군요 +_+

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알아두면 완전 좋을 TIP

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갤럭시노트 개봉기~

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저도 오늘 아침에 유툽 들어갔다가. WOW 했다는~~
New YouTube homepage! YouTube 홈페이지가 대폭 개편되었습니다.
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