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用人力就可以達到離心機的效果...

看到「This Human-Powered Paper Centrifuge Is Pure Genius」這個設計真的很巧妙... 全文刊登在 nature biomedical engineering 上:「Hand-powered ultralow-cost paper centrifuge」。

起源來自於小時候的玩具 (我也有印象,但忘記中文叫什麼了...):

Here, we report an ultralow-cost (20 cents), lightweight (2 g), human-powered paper centrifuge (which we name ‘paperfuge’) designed on the basis of a theoretical model inspired by the fundamental mechanics of an ancient whirligig (or buzzer toy; 3,300 BC).

研究後發現離心速度可以到 125000rpm:

The paperfuge achieves speeds of 125,000 r.p.m. (and equivalent centrifugal forces of 30,000 g), with theoretical limits predicting 1,000,000 r.p.m.

對於無法買昂貴醫療器材的地區,這樣就有簡單但又頗有效的離心機做檢驗...

亞利桑那州將針對肥胖治療的人收錢...

Slashdot 看到的新聞「Arizona Governor Proposes Flab Tax」,原文轉自 WSJ 的「Arizona Proposes Medicaid Fat Fee」。

文章裡提到:

Arizona's governor on Thursday proposed levying a $50 fee on some enrollees in the state's cash-starved Medicaid program, including obese people who don't follow a doctor-supervised slimming regimen and smokers.

那個「including」的意思表示不只跟這些人收,不然會用「only」而非「including」,以避免被政敵咬住利用,所以還不知道影響範圍有多大...

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