My field is physics ("natural philosophy"), specifically general relativity & cosmology.
Watch my youtube lectures "Intro to GR" (given to SPS physics majors at NYU): https://www.youtube.com/playlist?list=PLn_5Sx_ThgDGLVOal214TLTuWO2PA_xZt
Feel free to send me your comments about my lectures and articles: [email protected] Thanks!