how do i go about actually learning who to email/contact for a high school internship

<p>hi! im currently looking to get an internship (preferably in NYC at NYU or Columbia) or apprenticeship. i would love to help some professor do something with engineering or biology since those are probably the fields i will go into in college. i want to know how i should go about finding these interships. i understnad i have to email people, but how do i actually find the professors whom i am to email? how do i know who to talk to? i am confused about the whole process. any help would be appreciated. thanks!</p>