What physicists are basically doing is making the collisions as powerful and as efficient as possible to turn particle mass into pure energy (as a result of Einstein's bedrock equation E=mc2).

物理学家们做的这些事的本质就是尽可能让这些对撞充满能量并且高效以使这些粒子的质量转换为纯能量（这是爱因斯坦颠补不破的方程E=mc2的结果）。

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Einstein's famous equation, E=mc2, outlines how energy is equivalent to mass times the square of the speed of light.

这个道理可以参考著名的爱因斯坦质能方程式，E=mc2, 能量E是质量m乘以光速c的平方项。

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'the mass and velocity of the expelled gas,' he told me in an E-mail that has forever endeared him to me,.

‘所放屁的质量和速度，’在那封极其讨我欢心的邮件中，他写道，‘与人体质量相比相当之小。’

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If you look up really close, there is the elementary charge e.There is the mass of the electron.

如果你仔细找的话，会找到e表示的元电荷,也能找到电子的质量。

麻省理工公开课 - 固态化学导论课程节选

So, let's go ahead and define our variables here, they should be familiar to us. We have the mass, first of all, me m is equal to m e, so that's the electron mass.

让我们继续定义这些常数,我们对这些应该都很熟悉了，首先，我们有质量，m等于。

麻省理工公开课 - 化学原理课程节选

It bears witness to the important role of the city in the growth of the British Empire as a major port for the mass movement of people, e.g. slaves and emigrants from northern Europe to America.

UNESCO: World Heritage Committee places Liverpool on List of World Heritage in Danger | United Nations Educational, Scientific and Cultural Organization

Liverpool played an important role in the growth of the British Empire and became the major port for the mass movement of people, e.g. slaves and emigrants from northern Europe to America.

UNESCO: World Heritage

To know how the Higgs boson behaves, you have to know the Higgs boson mass. (i.e. the mass is not a prediction of the theory).

FORBES: If I Want To Look Well-Read And In The Flow, What Do I Need To Know About The Higgs Boson Discovery And Announcement?