Examlex
The speed of light in a certain medium is 2.2 × 108 m/s. What is the index of refraction of this medium?
Sensory Threshold
The minimum level of intensity from a stimulus that is detected by a sense organ, marking the boundary between non-detectable and detectable sensations.
Stimuli
External factors or signals that provoke a response from a sensory system or organism.
Backward Messages
Reversed audio or visual stimuli that are claimed to be perceptible and meaningful when experienced in a normal forward mode, often discussed in the context of subliminal messages.
Rock Songs
Musical compositions typically featuring guitars and drums, influenced by rock and roll and blues, with memorable melodies and strong backbeats.
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