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Related Concept Videos

Preparedness and Phobias01:09

Preparedness and Phobias

Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
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An object falling without any air resistance under the influence of gravitational force is said to be in free-fall. For free-falling bodies, the acceleration due to gravity is constant, irrespective of their mass. Free-fall is experienced not only by objects falling downward, but also by all objects whose motion is influenced by gravitational force alone. The dynamics of free-fall motion can be calculated using kinematic equations of motion, since free-fall acceleration is constant.
The...
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All objects, neglecting air resistance, fall with the same acceleration towards the Earth's center due to the force exerted by the Earth's gravity. This experimentally determined fact is unexpected because we are so accustomed to the effects of air resistance and friction that we expect light objects to fall slower than heavier ones. People believed that a heavier object had a greater acceleration when falling until Galileo Galilei (1564–1642) proved otherwise. We now know this is not the case.
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Related Experiment Video

Updated: Jun 10, 2026

Using Motion Capture Technology in the Instrumented Timed Up and Go Test to Detect the Risk of Falling in Aged Adults
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Published on: October 25, 2024

Fear of falling.

Mary-Claire Mason

    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |August 13, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Ataxias are complex neurological disorders without a cure. However, specialized medical care can effectively manage and alleviate associated symptoms.

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    Area of Science:

    • Neurology
    • Genetics

    Background:

    • Ataxias encompass a diverse range of debilitating neurological conditions.
    • Currently, no definitive cure exists for most forms of ataxia.

    Purpose of the Study:

    • To highlight the importance of specialized care in managing ataxia symptoms.
    • To provide an overview of current understanding and management strategies for ataxia.

    Main Methods:

    • Review of existing literature on ataxia.
    • Analysis of current clinical management protocols.

    Main Results:

    • Specialist care significantly improves quality of life for individuals with ataxia.
    • Symptomatic management strategies can effectively address various ataxia-related issues.

    Conclusions:

    • While a cure remains elusive, comprehensive specialist care is crucial for optimizing patient outcomes.
    • Further research into novel therapeutic approaches is warranted.