## 質點概念所暗示的接觸定義

$$\hat{H}\left|\Psi\left(\mathbf{r},t\right)\right\rangle=i\hbar\frac{\partial}{\partial t}\left|\Psi\left(\mathbf{r},t\right)\right\rangle$$

## 動摩擦力的作功與熱傳分析

Let me say at once that we are well aware of its serious flaws, along precisely the lines that you describe. We have tried several times to patch things up in successive printings but the matter runs too deep for anything but a total rewrite. We have, in fact, such a rewrite at hand, awaiting a possible next edition.

## 科學教育有責任提升學生的環保意識嗎？

NASA（美國太空總署）製作的視覺化模擬全球塑膠垃圾移動與匯聚動線