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わかるかな?
- #1
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- mimiko
- 2004/07/04 22:17
BNJITPSJI 、、暗号です。さて何でしょう!ビビナビで頭いいふりしてる人、これが解けないと本当の頭がいいとは言えないよ!答えだけ投稿してください。ヒントなしでーす。
- #198
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- まぼろし探偵
- 2004/09/05 (Sun) 21:47
- Report
面白い!コウイウノ大好き!
見事な錯覚ですね!
ポイントは三角形。緑の三角形はタテヨコの比が2:5だから、等倍なら赤の三角形は3:7.5のはずなのに、見ると3:8。全体像を見て上と下とは同じに見えるけれど、本当は四つを合わせた大きな三角形は斜線が直線になってないのに、錯覚で直線に見えてしまい、同じものなのに、1マスどこへ行っちゃったの?って思えるのでしたぁ!コレタノスイ!!!
- #199
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- こも
- 2004/09/06 (Mon) 02:15
- Report
どういうことですか?
確かに下の三角形の方がすこーし大きいのはわかりますが斜線が直線になってないのですか?まぼろしさん。
私は下の三角形の斜線が少し上に書かれている分、面積が白のマス一個分大きくなるのだと思いましたが・・・
- #200
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- まぼろし探偵
- 2004/09/06 (Mon) 02:49
- Report
ワァ〜イ!200ゲット!!!
こもさん、どうもです!
『斜線が直線になってないのですか?』
赤と緑の三角形それぞれは斜線はまっすぐなんですが、なんて言うんでしたっけ、赤と緑の三角形は等倍じゃないって言うか、赤と緑の二つの三角形の斜線の角度が異なるので、赤、緑、オレンジ、黄緑の四つを合わせた大きな三角形は、三角形のように見えるけれど本当は四角形であり、上の大きな三角形は緑と赤の接点で若干凹んでいて、下の大きな三角形は赤と緑の接点で少し張り出しています。(あれ?凹むに対する凸を使った対義語ってなんだろう?デコる?)
つまり、上と下の大きな三角形を重ねると細長い平行四辺形の差が生じ、それがマス一個分になるということです。
でもこの図形、見た目にはいかにも大きな三角形の斜線が直線に見えるので、赤と緑の三角形が等倍であると錯覚してしまうんですね。
- #201
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- 夜がすき
- 2004/09/06 (Mon) 10:58
- Report
えっと、このサイトは三角形の相似トリック以外にも、「えぇぇ?!」っていう目の錯覚画像が楽しめます。
http://www.ebaumsworld.com/illusions.shtml
トピから外れるけど、この映像もある意味目の錯覚を利用してます。
http://media.ebaumsworld.com/index.php?e=matrixpong.wmv
4MB近くあるので少し時間かかりますが試してみてください。
有名な爆笑Vです。(出品:欽ちゃんの仮装大賞)
HONDAのクルマ部品を使ったドミノ倒しCMに匹敵する出来だと思います。
- #202
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- まぼろし探偵
- 2004/09/06 (Mon) 14:58
- Report
http://www.ebaumsworld.com/peoplecount.html
ウ〜ン!?!?単純なのに、なぜ1人増えたり減ったりするかワカンナイ!!!誰かオセ〜テ!!!
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