Empirical evidence is a type of evidence that is used in research. Empirical evidence is evidence that is accumulated through direct observation or experimentation.

i know that this is stupid but how do scientists get empirical evidence.

the scientists had empirical evidence waiting to be answered

Characteristics of empirical evidence are observations measurements and other types of data :)

Empirical evidence is a source of knowledge acquired by means of observation or experimentation. The term comes from the Greek word for experience, Εμπειρία.