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:

    “Our own physical body possesses a wisdom which we who inhabit the body lack. We give it orders which make no sense.”
    —Henry Miller (1891–1980)

    “The principle that human nature, in its psychological aspects, is nothing more than a product of history and given social relations removes all barriers to coercion and manipulation by the powerful.”
    —Noam Chomsky (b. 1928)