Ideas for perpetual motion machines all violate one or more fundamental laws of thermodynamics, the branch of physics that describes the relationship between different forms of energy.
Potential energy is measured relative to some comparison position or shape, and describes the potential for other forms of energy, commonly kinetic energy for motion, to exist.
Please note that what we explore in this lesson is not connected only to American holidays — it can be used more generally to describe any kind of gift-giving event.
Han described the form of bullfighting he teaches as the explosive power of hard 'qigong', saying it combines the skill and speed of martial arts with traditional wrestling moves.
A phrase of the form 'a so-and-so' I shall call an 'ambiguous' description; a phrase of the form 'the so-and-so' (in the singular) I shall call a 'definite' description.
Typically, these images and 3D geometries contain a lot of information, and to be able to compare which is similar to which, we have to compress this information into a more concise description.
通常,些图像和 3D 几何形状包含很多信息,如果想要通过些信息比较哪个和哪个数据更相似,我们就需要把些信息压缩成更加简洁的形。
Still, at the elegiac close of his book, the author describes depredations wrought on the coast that affect everyone: not just the rampant building, but the accompanying organised crime, corruption and social tensions.