So he pared down the experiment until he was using the simplest possible sequence of just two pulses : a radio-wave pulse followed by a short-lived magnetic field pulse called a crusher.
12.
Warren and his colleagues thought they would be able to learn about the protein's structure from the different ways in which this magnetic signal faded when they varied the characteristics of the radio-wave pulse.
13.
The slotted disk is typically sandwiched between two circuit boards containing a photo-diode, photo-transistor, amplifier, and filtering circuits which produce a square wave pulse train output customized to the customers voltage and pulses per revolution requirements.
