Commutator \n\narmature\n\nbrushes\n\nfield windings
134805
check the brushes first.  they are the most likely source of the sparking.  Next would be the commutator.
407721
locomotive\nlocomotion\nallocate\nblockade\nblockage\nblock\nclock\nflock\nlocal\nlocale\nlocalise\nlocality\nlocally\nlocalite\nlocate\nlocater\nlocation\nlocative\nlocator\nlock\nlockage\nlocus \nlocust\nrelocate\nunblock\nunlock\nvelocity\nwedlock
325262
Heat exchangers, natural heating/cooling, jet mixing
193959
vacuum\ncontinuum\nperpetuum\ncarduus
392789
General Electric\n\nCoach
189720
friction\nflow \npath\namps\nbut jedi could be correct
149783
1.  not enough info\n2.  conduction?\n3.  conductor\n4.  resistance
151640
The thermostat is a heat sensor. The commutator is part of the rotor. The brush spring keeps constant pressure on the brush against the rotor, \nThat leaves.... the relay.\nIn small motors a centrifugal switch is used. It's mounted on the rotor shaft. When it reaches speed, the outward force opens the switch and disconnects the start windings.\nIn larger motors like 100 horse power and up, a "part winding start" can be used. Only a small part of the windings are used to start the motors. The starter box has a timer that triggers a relay that engages the rest of the windings when the speed is up.
230466
Newton\nEinstein\nDarwin\nPasteur
370414
statics & dynamics, \nstrength of materials, \nsolid mechanics, \ninstrumentation and measurement, \nthermodynamics, heat transfer, energy conversion, and refrigeration / air conditioning, \nfluid mechanics and dynamics, \nmechanism design (including kinematics and dynamics), \nmanufacturing technology or processes, \nengineering design, \nmechatronics and/or control theory, \ndrafting or CAD/CAM
368051
In: plug, knife, pencil\nOut: shirt, basket, car
551218
1. synthesis\n2. single replacement\n3. decomposition\n4. single replacement
120779
Are you looking for a field or a job title that encompasses these elements? This looks like the field of ergonomics, and one possible title might be Industrial Designer.
216717
Upright, canister, central vac, and Cyclone
492404
the radio/stereo, television, phone, cameras, electricity
625356
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$\n\nAnd a dentist\nInvisalign, Veneers, bleaching,  Crowns, Root canals,  Bone grafting. Implants.   \n\nA hammer
28758
Engine = Gas\nMotor = Electric