Breakdown of Таков закон физики: звук распространяется там, где есть воздух.
где
where / wherever
там
there
есть
is, there is, to have
звук
sound
Questions & Answers about Таков закон физики: звук распространяется там, где есть воздух.
Why does the sentence use там, где instead of just где?
In Russian, when you have a clause describing where something happens, you usually need a demonstrative pointer word in the main clause. там (there) points to the location, and где (where) explains it. While English just says 'where there is air', Russian literally says 'sound propagates there, where there is air.'
Why use Таков instead of Такой?
Таков is the short form of the demonstrative pronoun такой (such). We use short forms when the word acts as the main predicate of the sentence, representing what the subject 'is'. Just like 'Such is the law' in English, Russian uses Таков закон to mean 'The law is such.'
What role does the -ся ending play in распространяется?
The non-reflexive verb распространять means 'to spread [something]' (like spreading rumors or distributing flyers). Adding the reflexive suffix -ся makes it intransitive, meaning the action happens on its own without a direct object. Therefore, звук распространяется means 'sound spreads [itself]' or 'sound propagates.'
Why is есть used in the second half? Doesn't Russian usually drop the present tense of 'to be'?