### structure | chamber | furnace:

Incinerator
* All incinerators produce dioxins.
* also emit heavy metals and produce toxic ash which requires special handling
  - generate particulate air pollution
* are an imminent threat to the health of our citizens
  - environmentally harmful despite their activated carbon filters
  - even more wasteful than landfills, even though many are touted as energy-producers
  - major polluters
* belch hazardous gases and concentrate hazardous residues in their ash.
* burn waste at high temperatures.
* convert trash to toxic ash and toxic air emissions.
* emit large numbers of particles, despite the best available control technology
  - mercury when they burn wastes containing mercury
* give off fumes which contain toxic chemicals, including dioxins.
* make gaseous waste from solids and liquids.
* produce dioxin because they burn chlorine-laden wastes.
* reduce the volume of garbage that has to be dumped.
* require landfills for their toxic ash.
* turn waste into breathable air pollution and highly toxic ash.
* waste energy compared to recycling.

Kiln
* Most kilns have temperature differences from top to bottom
  - use gases
  - vary in temperature from top to bottom
* Some kilns have beehive shapes
  - require different bar cones to reach temperature
* allow a more efficient use of materials and more control over the atmosphere during a firing.
* are furnaces.
* includes bases
  - grates
  - sections

### structure | chamber | furnace | kiln:

Cement kiln
* are the furnaces that produce Portland cement, the active ingredient in concrete.
* receive liquid hazardous waste to burn as fuel to run their cement processes.

Solar kiln
* are a low-cost technology used for drying wood.
* come in many sizes.

Mausoleum
* are especially popular in certain regions of North America
  - memorials
* offer an enduring peace of mind that the sanctity of the deceased is fully protected.
* vary greatly in size and design and are often found on cemetery grounds.

### structure | chamber | particle detector:

Bubble chamber
* are an older type of detector.
* particle detector

Resonator
* are almost always of wood
  - alternatively large and small with a common inner diameter
  - chambers
  - circuits
  - systems
* fill with air.
* includes bases
* provide additional sound protection by absorbing excessive sound vibration.

Right ventricle
* Most right ventricles pump blood.
* Some right ventricles leave ventricles.
* carries deoxygenated blood from right atrium to pulmonary artery.
* is the pump area of the heart s right side.
* to pump blood.

Tokamak
* Most tokamaks use copper, an expensive metal that is difficult to form and weld.
* are chambers.
* is the fusion reactor with doughnut shape
  - most successful and promising fusion confinement device developed by scientists

### structure | chamber:

Vault
* are barrel-shaped objects present in every cell in the body
  - jumps
  - located in banks
  - part of banks
  - roofs
  - up-regulated in multidrug resistant cancer cells lines
* keep the ground from settling and make mowing and maintenance easier.
+ Safe (container): Security :: Containers
  * Fire ratings are usually based on how long the safe can be in a common structure fire before the inside of the safe reaches 175 degrees Celsius. This is the temperature at which paper and wood are destroyed. The fire rating usually ranges from 15 minutes up to 3 hours. Some safes are also waterproof, which both protects the contents from flood and prevents the contents from getting wet when a fire is put out by firefighters. A large safe that is part of a building is called a vault. Vaults have usually one or more rooms.

Chemical structure
* Most chemical structures have bonds
  - chemical bonds
* can get very complicated.
* is, of course, ultra-microscopic.
* represent substrates.