as a timeline

Mar 05 2009 ∞
“ エスカレーターというのは、階段部分と手すりとのスピードが一致していない。というか、安全のために、わざと手すりのほうのスピードを早めてあるのだという。
—

エスカレーターの手すりはなぜ足場と速度が違うのか - kokokubeta; (via proto-jp) (via ohmizaiju) (via ontheroad) (via otsune)

気になってた。

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