0:02
Electric drill spin with long rev.
0:02
Electric drill spin with single rev.
0:16
Construction crew working with occassional lulls, night time.
1:02
Construction crew working with occassional lulls, day time.
4:09
Construction crew in action with jackhammers and machines operating.
0:56
Servo motor -- metallic spinning, varying speeds, in a cycle.
0:59
Servo motor -- metallic spinning, varying speed (1).
0:48
Servo motor -- metallic spinning, decelerating.
0:25
Servo motor -- metallic spinning, slow speed.
0:13
Servo motor -- metallic spinning, medium speed.
0:05
Servo motor -- medium-paced revving.
1:52
Servo motor -- mechanical movements.
3:30
Servo motor -- running low with some variations.
0:07
Servo motor -- running low with intermittent variations.
0:41
Servo motor -- low spinning, then fast acceleration (2).
0:26
Servo motor -- low spinning, then fast acceleration (1).
0:31
Servo motor -- low revving, on and off.
0:34
Servo motor -- low revving, shutting off, and then idling.
0:15
Servo motor -- reving in various variations.
0:18
Servo motor -- motor revving with fast and slow variations.