Generally a damper device is used to remove shocks or vibration from a mechanical machine.A well known damper device used in cars is the common shock absorber.
An iris damper is a device to control air flow. it is used in clean rooms and office buildings.
I know a tuned mass damper is a device mounted in structures to reduce the amplitude of mechanical vibrations.
A seismic damper is a mechanical device that dissipates kinetic energy of seismic waves. It is also known as a harmonic absorber.
A damper restricts the air flow. In a fireplace, the damper is closed to prevent air from going up the chimney, with a resulting loss of heat in the house, when the fire is not going. When a fire is to be started, the damper is opened to create a draft to vent the smoke. In a wood or coal burning stove, the damper is variable and can be used to regulate the draft. The more widely open the damper is, the greater the draft, and the hotter to fire burns. This sort of damper cannot be closed all the way, because it is necessary to vent slow fires. Sometimes, a stove will have multiple dampers for different purposes. For example, a wood cook stove will have typically a damper on the flue, to regulate the heat of the fire, and a separate damper so the cook can choose to vent the gasses from the fire directly into to chimney, which would be how a fire is started, or around the oven, so the oven can heat nicely once a good draft is established. In other systems where air is moved, dampers can be used to stop the motion of the air. A fire damper is one such system, where the damper is used as a safety device to prevent a fire from spreading. There are links below.
A damper will help to reach the damper without getting burned and keep your hands free of soot.
Same device different name.
It is a vibration dampener. A primary application for the device is to reduce vibrations in pumping systems.
Typically an X-ray machine detects broken bones.
A thermal actualized damper is a damper that is used in fireplaces and woodstoves that adjust the damper according to the temperature. They are somewhat inconsistant as far as reliability so make sure you research and find a good one.
Generally, no Australian plant is used to male damper. Damper is a simple bread made from flour and water, cooked in a campfire. However, if one has patience and the know-how, one can crush wattle (acacia) seeds to make damper.
A tripwire is typically a wire that will detect movement and set off a device, typically a bomb. In the US if there were a terrorist attack a tripwire could be set off. A tripwire could also be used on a joke device.
Oil