Assertion: laser's beam | /r/HasProperty | narrow
Facets:
value: at the source
type: OTHER
value: usually
type: DEGREE
Source sentences:
text: Despite the beam being narrow, it will eventually spread over long distances due to the divergence of the laser beam, as well as due to scintillation and beam wander effects, caused by the presence of air bubbles in the air acting as lenses ranging in size from microscopic to roughly half the height of the laser beam's path above the earth.
text: The beam from single probes is usually narrow (Æ1mm-6 or 7mm) at the source.