My name is Paurakh and I'm studying applied math.

我叫普拉克，我主修应用数学。

Later, as we applied math and physics to what we observed we learned even more, and could then go back and explain what we saw.

随后，当人们把数学和物理学应用到观察的现象上，我们就学到了更多，并能解释那些之前看到的现象。

Hello, I'm Peter Shor. I'm a professor in applied math at MIT.

你好，我是彼得·肖尔。我是麻省理工学院应用数学教授。