Partially-dismantled computer hard disc drive being illuminated with a high-speed stroboscope. As the flash frequency of the stroboscope is lowered to 7,200 flashes per minute, the white mark on the disc appears stationary. This is due to the mark being illuminated once each rotation, and hence shows the rotational speed of the disc.
Blue Lights Police beacon on a black background. Police flashing light, Emergency lights flashing in the dark, Optical Lens Flare Effect. Light leaks Pulsing and Glowing in 4K seamless loop. Police Lights Strobe Efect.
Underwater photographer taking pictures of shoals of fish (Pseudanthias dispar and P. bicolor) on a coral reef. Two wide-mounted strobe lights flash to illuminate the scene. Filmed in Peleliu, Palau.
Food mixer in water, illuminated by a strobe light. Initially the mixer paddles are seen to be in motion and the water is vigorously agitated. The equipment is then illuminated by a stroboscope set at around 1,300 flashes per minute, the same as the rotational rate of the paddles, which causes the paddles to appear to stop moving, though the surrounding water appears to boil. This is due to the mixer paddles being illuminated once each rotation, hence their motion is apparently frozen.
Rear view of large group of people enjoying a concert performance. There are many hands applauding and taping the show. Multi colored lasers and spot lights firing from the stage.
Red Lights Police beacon on a black background. Police flashing light, Emergency lights flashing in the dark, Optical Lens Flare Effect. Light leaks Pulsing and Glowing in 4K seamless loop. Police Lights Strobe Efect.
Diver photographing False Clown Anemonefish sheltering in Magnificent Sea Anemone, a Crescent Wrasse swims into frame, looks at camera and swims away, CU, Malapascua, Philippines