I'm a NASA-trained astrobiologist who has sent microbiology experiments on space flights. I am experienced in tutoring biology and have authored various biology and biochemistry teaching materials for... the CUNY VisionLearning program (undergraduate college level).read more

Dr. David is a physician, astrobiologist, space medicine researcher, science communicator, and author, whose public appearances explaining science have included Oregon Public Broadcasting TV and numer... ous panels and interviews on various podcasts and radio shows. David loves explaining many of the very subjects that often scare students in medical school, premedical students, and those studying, or preparing to study, in the health sciences. David will help you to understand the material, so that you don't need to memorize, except when absolutely necessary. As an example, if you to learn which ECG leads show pathology in which parts of the heart, you can do this by learning the electrophysiology and deriving what shows what based on the locations and polarities of each electrode. He can tutor you in English, or in Spanish.read more