Füüsikastes
Füüsikastes is a term that appears in some contexts, though it is not a standard or widely recognized term in physics. It is possible that it refers to a misspelling or a colloquialism. If it is a misspelling, it could be related to "füüsika," which is the Estonian word for physics. In that case, "füüsikastes" might be a grammatical form of this word, perhaps indicating a plural genitive or dative case, implying "of physics" or "to/in physics." However, without further context, its precise meaning remains unclear.
Alternatively, "füüsikastes" could be a neologism or a term used within a specific, niche community or publication.