Related by context. Frequent words. (Click for all words.) 55 gravitational 52 centrifugal 51 kinetic energy 50 gravity 49 vortices 49 velocities 48 suction 47 gravitational pull 47 vortex 46 frictional 46 magnetic fields 46 vibrations 46 counterclockwise 46 rotor 45 magnetized 45 nozzle 45 outer layers 45 supersonic speeds 44 spins 44 atoms 44 clubhead 44 neutrons 44 electrostatic 44 impeller 44 particles 44 torque 43 shear 43 electrons 43 gripper 43 vibrational 43 droplet 43 neutron star 42 counter clockwise 42 combustion chamber 42 rotational 42 quantum mechanical 42 resonator 41 deform 41 deformation 41 pistons 41 particle 41 eddies 41 spherical 41 ions 41 compressed air 41 rotors 41 relativistic 41 pulley 41 magnetically 41 magnetic 41 tensile strength 41 magnetosphere 41 piston 40 gravitation 40 vibration 40 hydrogen atoms 40 electron 40 Einstein theory 40 backspin 40 piezoelectric 40 rear wheels 40 magnets 39 pulleys 39 clubface 39 inertial 39 water vapor 39 actuated 39 yaw 39 ionic 39 whirling 39 velocity 39 projectile 39 helical 39 armature 39 levitation 39 molten 39 capillary 39 spindle 39 crankshaft 39 recirculating 39 electric motor 39 protons 39 kinetic 39 nuclei 39 actuators 38 deformations 38 vibrates 38 filament 38 lever 38 eddy 38 dust particles 38 warping 38 vibrating 38 geometry 38 actuator 38 magnetism 38 photons 38 plate tectonics 38 detaches 38 tensile 38 electrically charged