In 1964, Clifford Ambrose Truesdell III [1] published his famous paper on the balance of angular momentum [2]. This paper is remarkable for at least two reasons:

• The paper of this great American scientist was submitted and published in German.
• The topic was not new because the balance of angular momentum was established more then two hundred years ago by Euler and others.

The reason for that were (maybe) the following two questions:

• is there the independence of the balance of linear momentum and the balance of the angular momentum; and
• it is possible to extend the formulation of the balance of angular momentum for n point‐masses with the help of the limit $n\to \infty$ to the case of a continuum?

Holm Altenbach & Wolfgang H. Müller

1964年，克利福德·安布罗斯·特吕斯特（Clifford Ambrose Truesdell III）[ 1 ]发表了他关于角动量平衡的著名论文[ 2 ]。这篇论文之所以出色，至少有两个原因：

• 这位伟大的美国科学家的论文以德语提交并发表。
• 这个话题并不是什么新鲜事物，因为角动量平衡是在200年前由Euler等人建立的。

其原因是（也许）以下两个问题：

• 线性动量平衡和角动量平衡之间是否独立；和
• 借助极限可以扩展n个点质量的角动量平衡公式$ñ\to \infty$ 连续的情况？

Holm Altenbach和WolfgangH.Müller