Turn your notes into quizzes, flashcards and a podcast
Upload your notes or a lecture recording and GoCram makes a practice quiz with explanations, spaced-repetition flashcards, a summary and a podcast. Chat with your notes, plan to your exam date, study in groups. Free, 7 languages, web and Android.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.