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Paintball is an equipment-intensive sport and in order to safely conduct a game, every player requires a marker with propellant to fire the paint, a mask to protect the eyes and face, paintballs, and a loader to hold them. To ensure safety off the playing field, a barrel sock or plug for the marker is also compulsory.
A paintball marker, also known as a paintball gun, paint gun, or simply marker, is an air gun used in the shooting sport of paintball, and the main piece of paintball equipment. Paintball markers use compressed gas , such as carbon dioxide (CO 2 ) or compressed air (HPA), to propel dye -filled gel capsules called paintballs through the barrel ...
Certain paintball fields opened in the Eastern Townships and in the Laurentians. In the beginning it was mostly fields with regular open fields with barricades of wood, old tires and barrels, and very basic infrastructure. Harry Kruger has operated a paintball venue known as "Capture the Flag" in Alberta since the late 1980s.
Smart polymers, stimuli-responsive polymers or functional polymers are high-performance polymers that change according to the environment they are in. . Such materials can be sensitive to a number of factors, such as temperature, humidity, pH, chemical compounds, the wavelength or intensity of light or an electrical or magnetic field and can respond in various ways, such as altering color or ...
Biodegradable pellets are available, and are often required by outdoor fields where sweeping is not an option. Conventional pellets pollute the environment, as most non-biodegradable pellets have a mineral or petroleum-based center, coated in non-biodegradable plastics, thus ensuring they will stay in the environment for several hundred years if not collected.
These materials do not block the magnetic field, as with electric shielding, but rather draw the field into themselves, providing a path for the magnetic field lines around the shielded volume. The best shape for magnetic shields is thus a closed container surrounding the shielded volume.
The presence of the magnetic nanoparticles allowed, first of all, the guiding of the nanotubes to specific locations in the body by external magnetic fields. Super paramagnetic particles are known to display strong interactions with external magnetic fields leading to large saturation magnetizations. In addition, by using periodically varying ...
Paintball equipment can be used in police scenario simulation like hostage standoffs, bank robberies, etc., and many paintball parks offer fields that can be used for this purpose; however, most real training along these lines is done with different equipment such as Airsoft, laser-based equipment or modified real-world weapons such as those ...