Telescope and gravity

Rating: 1/10 (8 October 2018)

When corpus collusus uses the telescope the telescope is definitely aimed up,and the building prevents a downward view.
Being at his height,the telescope would have to be on the floor to look downward.
So he's looking at an aeroplane or bird,right ?

Well the view changes to through the telescope, well ok it might be another telescope ..but why would that be ?
we can see the subject of corpus's interest is on a plain ... how can he look up at objects on a ( geographic ) plain....