Obstacle - Physical Barriers

Physical Barriers

As physical obstacles, we can enumerate all those physical barriers that block the action and prevent the progress or the achievement of a concrete goal. Examples:

  • architectural barriers that hinder access to people with reduced mobility;
  • doors, gates, and access control systems, designed to keep intruders or attackers out;
  • large objects, fallen trees or collapses through passageways, paths, roads, railroads, waterways or airfields, preventing mobility;
  • sandbanks, rocks or coral reefs, preventing free navigation;
  • hills, mountains and weather phenomena preventing the free traffic of aircraft;
  • meteors, meteorites, micrometeorites, cosmic dust, comets, space debris, strong electromagnetic radiation or gravitational field, preventing a spacecraft from navigating freely in space.

Read more about this topic:  Obstacle

Famous quotes containing the words physical and/or barriers:

    “Self-esteem is as important to our well-being as legs are to a table. It is essential for physical and mental health and for happiness.”
    —Louise Hart (20th century)

    “The majority of women, they have half-a-glass too much and let down their barriers a little. Then they wake up in the morning, riddled with guilt and think they can reclaim their virtue by saying, “I don’t remember.””
    —Blake Edwards (b. 1922)