Related by context. Frequent words. (Click for all words.) 64 ultrasonic waves 61 vibrations 58 pulsations 57 doppler 56 electromagnetic waves 56 microwave radiation 55 infrared beam 55 binaural 55 laser beams 55 electromagnetic 55 amplitudes 55 vibrating 54 pulsing 54 terahertz radiation 54 harmonics 53 pulsation 53 electrical currents 53 vibrational 53 infrasound 53 electrical impulses 53 resonant frequency 52 sine wave 52 tuning fork 52 electro magnetic 52 sonic 52 reverberant 52 laser pulse 52 radiowaves 52 bone conduction 52 photonic crystal 52 spectrally 52 hydrophone 52 directionality 51 magnetic fields 51 resonator 51 vibrates 51 airstream 51 microelectrodes 51 infrared radiation 51 laser pulses 51 sensory stimuli 51 Brownian motion 51 echolocation 51 ultrasonic 51 sensory nerves 51 plasmons 50 rhythmical 50 vocal folds 50 flapping wings 50 vibration 50 Photons 50 soundfield 50 dispersive 50 sensory organs 50 ionosphere 50 resonators 50 Gamma rays 50 vibrate 50 X ray beam 50 magnetic pulses 50 pattering 50 tympani 50 ultrasonics 49 oscillations 49 reverberation 49 infrared rays 49 auditory nerve 49 microwave frequencies 49 whooshing sound 49 electromagnet 49 Cosmic rays 49 sinusoidal 49 amplitude 49 rhythmic patterns 49 interferometry 49 cochlea 49 rhythmic 49 sunbeams 49 pulses 49 snare drums 49 nerve impulses 49 vortices 49 infra red 49 whorls 48 comet tail 48 kilohertz 48 waveguide 48 sensor detects 48 modulations 48 frequencies 48 venturi 48 seismic waves 48 birdsong 48 theremin 48 laminar 48 refracts 48 infrared 48 thrum 48 excitations 48 hemispherical 48 synthesizer