1. Not every inverse curve of a parabola is a cardioid . 2. It has large, cardioid leaves which are serrate, 10 20 cm long. 3. Other than the Cardioid there isn't a recognized heart curve in mathematics. 4. Among the best known of these curves are the lemniscate, lima�on, and cardioid . 5. In this configuration, the hook would trace out a path similar to a cardioid . 6. The official seal used by the University in 1868 to 1935 was a cardioid shield. 7. This caused the entire cardioid pattern to slowly rotate, dots clockwise, dashes counterclockwise. 8. The resulting reception pattern is modified from its original figure-8 to a cardioid . 9. The NHK ( Japanese broadcasting company ) developed an alternative technique also involving 5 cardioid microphones. 10. These compensate for the bass roll-off of the cardioid microphones and also add expansiveness.