Brick
* Most bricks have density
  - layers
  - mass
  - outer layers
* Most bricks have rigid layers
  - same shapes
  - square shapes
* Some bricks absorb water.
* Some bricks are made of crude mud
  - more prone to spalling than others.
  * are made of clay. Bricks are either formed into molds or cut with wires, and then baked in an oven. The color of a brick depends on the color of the clay from which it was made
* act as good insulators
* are absorbent and can hold stains
  - also a commercial alternative to home-grown rocks and they too come in many colors
  - blocks
  - building materials
  - capable of wall gardens
  - ceramic materials made by baking moulded clay
  - construction materials
  - easier to work with than concrete, and can be laid in many beautiful patterns
  - easy to make, because they are simple
  - heavies
  - insects
* are located in buildings
  - roofs
  - part of brick walls
* are the most common construction material for rural houses
  - oldest manufactured building material still in use
  - weapon of choice when it comes to vandalism
* are used for buildings
  - constructs
  - very strong in compression
* can also vary greatly in hardness due to the manufacturing process.
* chimneys hide a system that circulates air in and out of the building every six minutes.
* come in all different shapes, sizes, and colors.
* eventually disintegrate in water and can jam plumbing lines.
* expands and contracts with freezing and heating conditions.
* fall to earth because their natural state is to be at rest on the earth's surface.
  - the potential of being the nicest looking material to use for construction
* includes sections.
* is ceramic
* provide excellent water retention
* seem to float in the air, as gaps remain where mortar used to be.
* tend to disintegrate in the water and can damage plumbing.

### bridges:

Arch bridge
* are bridges
  - one of the oldest types of bridges and have great natural strength
  - structure sin which each span forms an arch
* touch the ground at points called abutments.

Briefcase
* are baggage
  - boxs
  - cases
* are located in airports
  - courtrooms
  - desks
  - hands
  - office buildings
  - office products
* tend to be very personal items for some people, very much a part of their lives.

Bright object
* can tolerate more magnification before too much light is lost.
* have more negative magnitudes than faint objects.

### bright orange crystal:

Sodium dichromate
* bright orange crystal.
* is salt

Brightness
* Most brightness depends on size.
* Some brightness changes over time.
* Some brightness varies over few years
* adjusts the level of brightness for video playback.
* cans have impact.
* depends on locations
* has effects.
* is light
* varies over periods.

### brightness:

Apparent brightness
* Most apparent brightness depends on locations.
* decreases with the square of the distance.
* falls off as the inverse square of the distance.

### brightness:

Flash
* Many flashes have a red-eye reduction feature.
* Most flashes cause light
  - generate a quick burst of light at a certain color temperature
  - originate in clouds
* are experience
  - happening
  - insight
  - lamps
  - patchs
  - sensations of light, when no light is really there
* are used for flashs
* drying continuous process with the dryer being either directly or indirectly fired.
* is an occurrence
* occur when the vitreous gel rubs or pulls on the retina
  - shrinks and pulls on the retina
  - tugs on the sensitive retina tissue

### brightness | flash:

Electronic flash
* can freeze action and increases depth of field.
* draw a lot of current in a short time.
* is artificial lighting produced by an electronic discharge in a gas filled tube.
* produces clear images of vehicles under all light and weather conditions.