Assertion: laser's beam | /r/HasProperty | visible
Facets:
value: through scattering
type: MANNER
value: in dark lighting conditions.[citation
type: TEMPORAL
Source sentences:
text: Special YAG laser and dual-frequency eyewear is available for work with frequency-doubled YAG and other IR lasers which have a visible beam, but it is more expensive, and
text: The 5 mW green laser pointers (classes II and IIIa) are the safest to use, and anything more powerful is usually not necessary for pointing purposes, since the beam is still visible in dark lighting conditions.[citation needed]
text: Note that the beam itself is visible through Rayleigh scattering