for Bitcoin & Nostr :  nostr:npub10hcsqj6587uc5whzzuhgk274ke6g7ruh80enjm74ucln2m24hyxq2gf8fn

for Biology Lectures: @biologyclasses

started making Biology college lectures on NOSTR ) npub1x0y67rdadlm76pwpgeh5vcawnad4u43utgduh698nn3ucwv98dmqlxmfc0