When a Sparkler Is Twirled Rapidly, People Perceive a Circle

question 31

Multiple Choice

When a sparkler is twirled rapidly, people perceive a circle of light. This occurs because

• A) the trail you see is caused by sparks left behind from the sparkler.
• B) longer light wavelengths from the sparkler produce a visual echoic effect.
• C) the length of iconic memory is about a fraction of a second.
• D) Gestalt principles work to complete the circle in our minds.

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Definitions:

Traumatically Torn

Describes tissue or structures that have been ripped or injured due to a sudden physical trauma.

Burn Diagnosis

Burn Diagnosis refers to the assessment and categorization of burns based on their depth, extent, and severity to guide treatment options.

Second-degree Burn

A burn injury affecting both the outer layer (epidermis) and the underlying layer (dermis) of skin, causing blistering and pain.

Necrosis

The death of the tissue.