mirror box

Examples of mirror box in the following topics:

• Phantom Limb Sensation

  • One approach that has gained a great deal of public attention is the mirror box .
  • A diagrammatic explanation of the mirror box: the patient places the good limb into one side of the box (in this case the right hand) and the amputated limb into the other side.
  • Due to the mirror, the patient sees a reflection of the good hand where the missing limb would be (indicated in the lower contrast).

• Image Formation by Spherical Mirrors: Reflection and Sign Conventions

  • When you place an object in front of a mirror, you see the same object in the mirror.
  • This section will cover spherical mirrors.
  • In a concave mirror, the principal axis is a line that is perpendicular to the center of the mirror.
  • In convex mirrors, the principal axis is the same as in a plane or concave mirror, perpendicular to the center of the mirror.
  • The focal point is the same distance from the mirror as in a concave mirror.

• Image Reflection by a Plane Mirror

  • The most common mirrors are flat and called plane mirrors.
  • When you place an object in front of a mirror, you see an image of the same object in the mirror.
  • In flat, or plane mirrors, the image is a virtual image, and is the same distance behind the mirror as the object is in front of the mirror.
  • Draw the object as an arrow in front of the mirror.
  • When this happens, we say the ray hit the mirror normally.

• Etruscan Bronze Sculpture

  • The Etruscans also used bronze to create small objects, including storage jars, or cistae, and mirrors.
  • Etruscan bronze mirrors were used by women and often deposited as grave goods.
  • Many of these mirrors were inscribed with the deceased's name, and ritual blessings.
  • The cistae were small boxes with lids, much like a pyxis, that was made from bronze and was usually cylindrical.
  • Mirror with an engraving of the Judgment of Paris.

• Making a Box Model

  • A box plot (also called a box-and-whisker diagram) is a simple visual representation of key features of a univariate sample.
  • A box plot (also called a box and whisker diagram) is a simple visual representation of key features of a univariate sample.
  • The box lies on a vertical axis in the range of the sample.
  • The width of the box is arbitrary, as there is no x-axis.
  • Produce a box plot that is representative of a data set.

• Box Plots

  • There are several steps in constructing a box plot.
  • The 50th percentile is drawn inside the box.
  • Continuing with the box plots, we put "whiskers" above and below each box to give additional information about the spread of data.
  • For example, the box plots in Figure 6 are constructed from our data but differ from the previous box plots in several ways.
  • The box for the women is wider than the box for the men because the widths of the boxes are proportional to the number of subjects of each gender (31 women and 16 men).

• Problems

  • For argument's sake, let's first focus on the mirror on the left and consider that the mirror on the right is moving.
  • Now let's focus on the mirror on the right and consider that the mirror on the left is moving.
  • To start let's assume that the particle of mass m approaches the mirror on the left at the velocity of the mirror on the right.
  • The particle bounces off of the mirror.
  • The particle bounces off of the mirror.

• The Law of Reflection and Its Consequences

  • Whenever you look into a mirror or squint at sunlight glinting off a lake, you are seeing a reflection.
  • When we see our reflection in a mirror , it appears that our image is actually behind the mirror -- we see the light coming from a direction determined by the law of reflection.
  • The angles are such that our image appears exactly the same distance behind the mirror as we stand away from the mirror.
  • An image in a mirror appears as though it is behind the mirror.
  • The two rays shown are those that strike the mirror at just the correct angles to be reflected into the eyes of the viewer.

• The Telescope

  • Shortly after, people began to build them using mirrors and called them reflecting telescopes.
  • Reflecting telescopes were not practical because of the highly corrosive metals used to make mirrors until the introduction of silver-coated glass mirrors in 1857.
  • The object being observed is reflected by a curved primary mirror onto the focal plane.
  • (The distance from the mirror to the focal plane is called the focal length. ) A sensor could be located here to record the image, or a secondary mirror could be added to redirect the light to an eyepiece.
  • Catadioptric telescopes, such as the one shown in , combine mirrors and lenses to form an image.

• Sculpture of the Aztecs

  • A unique and versatile form of sculpture was the carved mirror.
  • Obsidian mirrors in pre-Columbian times were fashioned from stone and served a number of uses, from decorative to spiritual.
  • Aztec mirrors were originally held in wooden frames and were decorated with perishable ornaments, such as feathers.
  • During the Spanish conquest, Hernán Cortés was known to have sent obsidian mirrors back to the royal court in Spain, where they became widely collected among the European aristocracy.
  • This mirror was carved from obsidian on a modern wooden base and is currently held in the Museum of the Americas, Madrid.