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The creation of sparks from metals is based on the pyrophoricity of small metal particles, and pyrophoric alloys are made for this purpose. [2] Practical applications include the sparking mechanisms in lighters and various toys, using ferrocerium; starting fires without matches, using a firesteel; the flintlock mechanism in firearms; and spark testing ferrous metals.
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The word theory in "the theory of evolution" does not imply scientific doubt regarding its validity; the concepts of theory and hypothesis have specific meanings in a scientific context. While theory in colloquial usage may denote a hunch or conjecture, a scientific theory is a set of principles that explains an observable phenomenon in natural ...
For example, the word dermatology comes from the root dermato plus logy. [3] Sometimes, an excrescence , the addition of a consonant, must be added to avoid poor construction of words. There are additional uses for the suffix such as to describe a subject rather than the study of it (e.g. technology ).
Scientific terminology is the part of the language that is used by scientists in the context of their professional activities. While studying nature, scientists often encounter or create new material or immaterial objects and concepts and are compelled to name them.
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A feature affecting clarity in seeing a scientific word's components is haplology, i.e. removing one of two identical or similar syllables that meet at the junction point of a compound word. Examples are: appendectomy = appendix, appendicis, (Latin for "appendix") + -ectomy (ultimately from Greek τομή, "a cutting")