Chemistry and biology, physics has the advantage that the desktop experiments can do are relatively straight forward than not dangerous.
化学和生物的话,物理有一个好处就是,桌面实验能做到,直观却不危险,地反映结果。
As soon as you allow anything to mix, like you might if you want to do any chemistry, entropy changes.
只要你允许物质混合,就像你做任何化学实验的时候要做的,熵就会发生变化。
What we are seeing here is a big transition from just experiment and documentation to modern chemistry.
我们见证了一个很大的过度,从只是实验和,文件材料到现代化学。
But, I think what most of you, actually having MIT come to MIT, have probably realized is sometimes it's nice to major in a science, because you can't just pick up a reaction and do it in your kitchen on the weekend, where as you can sometimes join a book group and do that.
但我认为对你们大多数人来说,既然来了,可能已经意识到最好是主修一门科学,因为你不能在你,周末的时候在厨房里做化学实验,然后你就可以参加一个读书俱乐部。
That tells us the direction of spontaneous change for ordinary processes, chemical processes, mixing and you name it, under conditions that are easy to achieve in the lab.
这个物理量告诉我们在实验室,能够实现的条件下通常的过程,化学过程,混合以及你所能想到的过程,自发进行的方向。
What is it when you run a chemical reaction under ordinary circumstances, what's constant?
如果你在通常的环境下进行化学实验,那么这些条件是什么?什么保持常数?
For those of you don't know what that is it's simply an instrument that counts radioactive particles in the air, and MIT now that you're at MIT, you'll all have a chance to see one first hand if you're ever in any of the labs, especially in the chemistry or bio labs.
不知道它是什么,它就是一个简单的,计算在空气中放射粒子数目的仪器,你们现在来了,如果你们在实验室里工作的话,尤其是化学和生物实验室,你们有很多机会亲手用到它。
In addition to studying molecules and making molecules, some chemists Tim Swager want to detect molecules, and a chemist who likes to detect molecules TNT is Tim Swager. So, Tim Swager's lab has designed sensors that detect vapors, Fido and so they will detect TNT, for example.
除了研究和制备分子,有些化学家想要探测分子,其中的一位就是,他的实验组设计了用来探测蒸汽的感应器,可以用来检测比如说,而且他把化学应用到这个机器人手臂里,他们叫它。
So, my final example is from Alan Davidson's lab, and Alan is an inorganic chemist -- he loved those transition metals and they're unique properties, and he designed this compound, it's called Cardiolite, Cardiolite and it's used in heart imaging.
最后一个例子是Alan,Davidson实验室,他是个无机化学家-,他喜欢研究过渡金属,和它们的奇特性质,他设计了这种化合物,叫做。
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