44个精彩的物理趣题
44 Challenging problems. Many are quite difficult, and tests if your physics understand is solid enough!
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44 Challenging problems. Many are quite difficult, and tests if your physics understand is solid enough!
我時常聽別人說: “買ROE高的股票就必定是好的投資!!”
今天我要在這兒大聲疾呼 "買ROE高的股票不一定是好投資!!"。
上期我跟大家談過「拉腰」治坐骨神經痛這個話題,後來有人問我物理治療中是否有一項叫「拉頸」的方法,用作治療頸椎神經線受壓呢?不錯,其實頸椎神經跟坐骨神經一樣,都會因受壓而出現肢體感覺上的錯亂,而他所說的「拉頸」,便是其中一種頗為常用的治療方式。
近日有讀者來信,說她患了腰痛多年,近日痛楚更延至右腿外側,有時甚至擴散至小腿部分,間中還會出現麻痺感。
醫生建議她接受物理治療的「拉腰」療法。到底,「拉腰」是怎樣的治療方式呢?
如何有效地融資,這是一家企業不時會面對的問題,較常用的融資方法有股本融資及借貸,那麼應該用股本融資還是借貸來籌集資金呢? 站在股東的角度,哪種方法比較有利呢?
昨天跟一位教車師傅聊天,發現原來他跟許多職業司機一樣,由於長時間坐在又軟又低的司機位上而患上「椎間盤性」的腰痛。近日更因此而引起坐骨神經痛,使他一旦久坐後便會出現腿部痺痛,極為不適。