喜樂美語
  1. 1量子

    In physics, energy in the very small world of atoms does not pour like water. It comes in little packets. One packet is a quantum. You cannot have half a packet: you have one, or two, or none. Light comes in quanta too — we call those . School books often put this under nuclear physics, because the energy of the nucleus comes in these steps, though actually the idea belongs to a bigger field, quantum physics, which looks at all very small things, not only the nucleus. The word is rather formal and technical. In ads and newspapers people stick “quantum” on anything they want to sound clever, and “a quantum leap” means a big sudden change — which is almost the opposite of the science meaning, where a quantum is the smallest possible step.

From the word’s history

From Late Latin quantum, neuter of quantus 'how much'.

借自拉丁文 quantum，就是 quantus「多少」的中性形。

Wiktionary

組成From Late Latin quantum, the noun use of the neuter form of Latin quantus (“how much”) — a “how-much” of energy.

同家族的字

原始詞典資料14 筆記錄

以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。

quantumnoun/ˈkwɒntəm/

  • 1

    lawThe total amount of something; quantity.

    • The reader will perhaps be curious to know the quantum of this present, but we cannot satisfy his curiosity.
    • A certain quantum of power must always exist in the community, in some hands, and under some appellation.
  • 2

    lawThe total amount of something; quantity.

  • 3

    lawThe total amount of something; quantity.

  • 4

    The amount or quantity observably present, or available.

    • Each man has only a quantum of compassion, he argued, and mine is used up for the day.
    • The dream of flying, according to Strümpell, is the appropriate image used by the psyche to interpret the quantum of stimulus [translating Reizquantum] proceeding from the rise and fall of the lungs when the cutaneous sensation of the thorax has simultaneously sunk into unconsciousness.
  • 5

    natural-sciencesphysical-sciencesphysicsThe smallest possible, and therefore indivisible, unit of a given quantity or quantifiable phenomenon.

    • The quantum of light energy was later called a photon.
  • 6

    computingengineeringmathematicsThe amount of time allocated for a thread to perform its work in a multithreaded environment.

  • 7

    medicinesciencesThe minimum dose of a pathogen required to cause an infection.

  • 8

    economicssciencesAmount of goods produced or demanded.

另外 1 個記錄的用法
  • 9

    mathematicssciencesA definite portion of a manifoldness, limited by a mark or by a boundary.

    • Defined parts of a manifoldness are called Quanta

quantumadj/ˈkwɒntəm/

  • 1

    Of a change, sudden or discrete, without intermediate stages.

  • 2

    informalOf a change, significant.

  • 3

    natural-sciencesphysical-sciencesphysicsInvolving quanta, quantum mechanics or other aspects of quantum physics.

    • Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.
  • 4

    computingcomputing-theoryengineeringInvolving quanta, quantum mechanics or other aspects of quantum physics.

這個拼法也被記錄為下列字的變化形：

  • quantum computing

摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。