Formal research is usually done in an academic or professional setting like a physics institute or a university school of medicine
Informal research is done by individuals (like authors and inventors studying the background [“prior art”/“state of art”] of their respective areas of inquiry).
Answer: you can look for audio books online or something and also check online to see if they have answers. they usually do and a helped me. sorry i cant really help. Have a good day tho!
