Questions & Answers about El proyector de esa aula es más nuevo que el de la biblioteca, pero hace más ruido.
Why is it esa aula if I learned that aula often takes el?
Because aula is actually a feminine noun. In the singular, it usually takes the masculine article el before a stressed a- sound: el aula, el agua.
But that change normally affects the article, not other words around it. So demonstratives and adjectives still stay feminine:
- esta aula
- esa aula
- aquella aula
- el aula nueva
So esa aula is correct.
What does de mean in el proyector de esa aula?
Here de links the two nouns and shows a relationship like of, from, or very often in natural English, in or belonging to.
So el proyector de esa aula is literally something like the projector of that classroom, but in natural English you would usually say:
- the projector in that classroom
- that classroom’s projector
Spanish uses de very often where English prefers other structures.
Why does it say el de la biblioteca instead of repeating el proyector de la biblioteca?
Because Spanish often leaves out a noun when it is already clear from the context.
Here, el stands for el proyector, so:
- el de la biblioteca = the one in the library
This is a very common pattern in Spanish. For example:
So the sentence avoids repeating proyector.
Why is it más nuevo que and not más nuevo de?
When Spanish compares two things, it normally uses:
So:
- más nuevo que = newer than
- más grande que = bigger than
- más barato que = cheaper than
De is used with more than in other kinds of expressions, especially quantities:
- más de veinte libros = more than twenty books
But for comparing one thing with another, use que.
Why is it nuevo and not nueva?
Why does Spanish say hace más ruido instead of es más ruidoso?
Hacer ruido is a very common Spanish expression meaning to make noise or to be noisy.
So:
- hace más ruido = it makes more noise / it is noisier
You can say es más ruidoso, and it is grammatically correct. But with machines, appliances, engines, and similar things, hacer ruido is often the more natural everyday way to talk about the noise they produce.
Who is doing hace in the second part? Why is there no pronoun?
The subject is still el proyector de esa aula.
Spanish often omits subject pronouns when the subject is already clear. So after pero, Spanish does not need to repeat él.
The structure is basically:
- El proyector de esa aula es más nuevo que el de la biblioteca, pero hace más ruido.
English usually needs the subject again:
- ..., but it makes more noise.
Spanish often leaves it out.
Is pero just but here?
Yes. Pero is the normal Spanish word for but.
It connects two contrasting ideas:
- the projector is newer
- but it makes more noise
So pero works exactly as you would expect here.
Could I say el proyector en esa aula instead of el proyector de esa aula?
Sometimes yes, but the meaning is slightly different.
- el proyector de esa aula suggests the projector belonging to / assigned to that classroom
- el proyector en esa aula focuses more on the projector that is physically in that classroom
In many situations both would be understood, but de esa aula is very natural when identifying which classroom’s projector you mean.
What exactly does esa mean? Why not esta or aquella?
Esa is a demonstrative adjective meaning that.
The basic contrast is:
- esta aula = this classroom
- esa aula = that classroom
- aquella aula = that classroom over there / that one farther away
In practice, everyday Spanish does not always keep these distance distinctions very strictly, but that is the usual idea. Here, esa aula simply identifies a particular classroom as that classroom.
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