Demonstrator
Encyclopedia
A demonstrator may be:
- A person performing a demonstrationScientific demonstrationA scientific demonstration is a scientific experiment carried out for the purposes of demonstrating scientific principles, rather than for hypothesis testing or knowledge gathering ....
, such as to explain science or technology - An attendee at a political rallyDemonstration (people)A demonstration or street protest is action by a mass group or collection of groups of people in favor of a political or other cause; it normally consists of walking in a mass march formation and either beginning with or meeting at a designated endpoint, or rally, to hear speakers.Actions such as...
- A device or objectDemonstrator modelA Demonstrator model is an example of something used in some kind of presentation or exhibit.-Sales demonstrators:...
used to perform a demonstration - A vehicleEmergency vehicleAn emergency vehicle is any vehicle that is designated and authorized to respond to an emergency. These vehicles are usually operated by designated agencies, often part of the government, but also run by charities, non-governmental organizations and some commercial companies...
adapted to emergency service specification, and issued to locations for use as a prospective emergency vehicle if adopted to that workforce either police, ambulance or fire. - A fountain penFountain penA fountain pen is a nib pen that, unlike its predecessor the dip pen, contains an internal reservoir of water-based liquid ink. The pen draws ink from the reservoir through a feed to the nib and deposits it on paper via a combination of gravity and capillary action...
with a transparent body originally used so dealers could show customers how they worked. See Demonstrator penDemonstrator penDemonstrator pens are pens which are partially or mostly transparent.Demonstrator pens were originally furnished by manufacturers to dealers, so that the features of their products could be shown to potential buyers. The first demonstrators had openings cut in their barrels, and usually, their caps...