Astronomy   View all facts   Glossary   Help

physical object > artifact > device

device
subject			fact

device	has definition an instrumentality invented for a particular purpose
	is a kind of artifact
artifact	has creator
	has creation date
	has purpose
	has owner
physical object	has location or center of gravity
	has angular momentum
	has mass
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

Kinds of device :

• instrument (297 kinds, 1540 facts) - a device that requires skill for proper use